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A midnight stroll around Paris

Sunday, August 20th, 2017

It’s a stiflingly hot summer’s night in Paris – 37deg C during the day and not really dropping much by midnight and with little breeze to cool the apartments – the best place to be is out on the streets having a wander and exploring without the crowds.

Paris

My quaint hotel room decorated by famous designer Christian Lacroix at Hotel Le Bellechasse adjacent to my favourite art gallery, the Musee D’Orsay in Saint Germain. The staff at this hotel were always extremely pleasant and helpful, and the room clean and quiet, and thankfully was fitted with an air conditioner. There was a lift to avoid the common struggles of staircases and luggage, and a nice buffet style breakfast if one wished to partake.

As nice as it was, the streets of Paris at midnight beckons.

And thanks to my Olympus OM-D E-M1 II Micro Four Thirds camera, there is no need for carrying cumbersome tripods, just hand held image stabilized night street photography, discrete enough to hide it if danger lurked in the dark recesses along the Seine.

Paris

But in Paris, one is never alone, lonely perhaps, but not alone.

Paris

And though it was dusk, in a city where the threat of terrorism is ever present, being able to capture this lovely fleeting candid street photography style shot of these two ladies oblivious to the world and having a laugh is what brings joy to photography – Paris is not just the old buildings and art galleries – it is the people who remind us that humanity is not all that bad.

Paris

I am guessing you don’t need me to tell you this the the famous Louvre, but here are a couple of images before they turn the lights off at midnight and evacuate the square.

Paris

Paris

Paris

Paris

I can’t write a blog post like this and not include the Eiffel Tower at dusk – oh yes, the sun sets late in Paris, and dusk is around 11pm!

Paris

Or, for that matter, romance along the Seine – they are just too iconic to ignore even for me!

Hands on testing of the Godox AD 600B for radio remote TTL mobile studio flash, high sync and pushed sync on Olympus OM-D cameras – even works in conjunction with Cactus V6 II system!

Sunday, August 6th, 2017

Godox has created a dream come true for many Micro Four Thirds users with Olympus OM-D or Panasonic mirrorless cameras – not only do we now have access to a radio remote TTL flash system but it is easy to use, seems reliable and you can get an amazing very powerful battery operated studio flash with Bowens S mount – the Godox Wistro AD600 / 600B which remotely supports TTL exposures as well as high speed sync (Super FP flash mode in Olympus nomenclature) for flash at all shutter speeds to 1/8000th second (with mechanical shutter).

The instruction manual for the Godox X1TO remote TTL flash trigger can be downloaded here and that for the Godox AD 600B downloaded here.

AD600

 

First the hard bit – upgrading the firmware of the AD600 unit for Olympus TTL capability:

The AD600 does not come with Olympus/Panasonic radio TTL compatibility by default thus you need to upgrade the firmware, nor does it come with a USB cable – but most of us have plenty lying around – you just need to find one that fits the AD 600 USB port.

Next you need to download the Godox firmware updater software from the Godox download web page, as well as the correct firmware for your flash model, noting the G1 install procedure instructions.

You then need to extract the software installation files from  the .rar format for both the updater software and the firmware file – you can use a program such as 7-zip to do this.

Then you run the setup for the updater software installer, however, on the latest versions of Windows 10, BEFORE you can install the USB driver correctly, you may need to Disable Signed Driver Enforcement – see instructions for doing so here. Then you must reboot the computer and then install the software by running setup.exe of the updater software and hopefully all will install properly.

Next you need to TURN OFF the Godox Remote Controller AND DISCHARGE ANY POWER buffered in the AD 600 unit by REMOVING the BATTERY then press OFF/ON Button for 2 seconds BEFORE YOU ATTACH USB cable to computer – otherwise I am guessing you can fry your computer.

If your device driver installed correctly, when you attach the USB cable to the computer, it should be recognised.

Now run the Updater Software and click on the bottom left button to select English.

If you are running a high resolution display, you will not see the bottom buttons which makes life harder – in this case change your display resolution to 1920 x 1080 temporarily so you can use the software better.

Now it becomes obvious that you first press the top left button called Select File and then you need to find the firmware file you downloaded and extracted which has the file extension .fri.

Then you press the top middle button to Connect to the flash unit – if this fails, either your USB cable is not the right one or is faulty, or, you didn’t install the USB drivers due to the issue above.

If the flash is detected then you are ready to upgrade the firmware by pressing the Upgrade button – of course, you do NOT want to disconnect the unit until this is complete!

Configuring the AD600B flash for radio wireless TTL flash:

Connect the lithium ion battery (after you have charged it up which takes 4hrs).

Plug in the globe (many use gloves to avoid skin oils contacting the glass but its not as critical as with halogen globes) – or plug in the optional very useful H600B remote head and the globe plugged into that instead.

Turn the flash unit ON using the On/Off button.

Press the “Z” top middle button on the flash unit to activate the WiFi mode (other options on toggling are Manual mode or optical remote TTL Canon/Nikon).

Ensure the channel is on the desired one (usually Channel 1 by default – press and hold GR/CH button then use the dial to change it).

Ensure the Group is the desired one (usually Group A by default – toggle through the groups by pressing the Gr/Ch button).

The flash should now be able to be fully remotely controlled from your X1 remote controller which sits on your camera hotshoe.

Using your X1T-O remote controller:

You need to purchase the Olympus version which is the X1T-O model (can be used on any Micro Four Thirds camera including Panasonic).

X1

Install two AA batteries then attach it to the camera hotshoe.

Turn the camera on, and I generally set the camera’s PASM dial to Manual so I can choose shutter speed (to control ambient exposures) and the aperture (to control depth of field) and generally set ISO to base ISO of 200.

Ensure the camera’s flash mode is set RC = OFF (RC is for optical remote control which we are NOT using) and to Fill-in flash or similar so that a signal will be sent to the hotshoe. Note , you don’t activate Super FP in the camera – the remote control will do this for you!!!

Turn the  X1 on using the switch on the side, and decide which mode you want to use for the other switch – normal or HSS (Super FP mode) – unless you are shooting in bright sun and need a fast shutter speed to allow a wide aperture, use the normal mode.

Check the LCD screen on the X1 to ensure the channel corresponds with that on your flash unit and use the rear dial to go to the Group – you can then use the mode button to choose TTL  or Manual Flash Output control.

By default, turning on the X1 will activate the flash’s controls automatically (if your channel and group are correct) and so the LED modelling light will be turned on (you will need to go to the flash unit to turn this off manually).

Now the fun part – it just works!

The X1 remote specs indicate you should be able to control the flash up to 100m away – assuming you have no nasty water pipes, etc in the way which block radio signals.

Change your shutter speed to give a desired ambient exposure for a given aperture and ISO.

Take the shot and hopefully it will all work as if you are using a normal Olympus remote flash but without the annoying optical pre-flash signals and with far more flash output and remote distance capability.

HOWEVER, an important point – the camera’s flash settings such as flash exposure compensation and FP mode are IGNORED by the X1 – to set a flash exposure compensation, select the flash group on the X1 then, assuming the flash mode is set to TTL (use the mode button for this),  press GR button then the dial to change flash exposure compensation and then GR button again to save it. As mentioned above, if you want to use FP mode, slide the side switch to H mode.

Now for some advanced stuff – over-powering the sun:

On the Olympus OM-D E-M1 mark I and Mark II, you can flash sync up to 1/250th sec in normal mode – the camera won’t let you go faster than that shutter speed unless either:

  • you set the X1 to HSS mode (but this dramatically reduces the maximum output of the flash as shutter speed gets faster), OR,
  • use what I will call “push-sync” (similar to the Cactus Power Sync or Pocket Wizard Hypersync mode) you still use the X1 in normal mode, but trick the camera into firing flash at faster shutter speeds without FP mode by placing a single flash pin hotshoe adapter between the camera hotshoe and the X1 (or connect to the X1 via a PC sync cable) in which case you lose TTL capability but my tests show you can now fully sync at 1/320th sec, and even get to 1/500th sec with some loss of flash effect (black band) on the top 1/3rd of the image – but this could be usable for some compositions in outdoor shots and allow you to over-power the sun.

Using an on-camera flash as well:

If you attach an Olympus TTL flash onto the X1′s hotshoe, unfortunately, the X1′s hotshoe is only a single pin type and NOT a TTL pass through (unlike the cactus V6 II remotes which do have TTL passthrough) and thus the ONLY control over the flash via the camera is triggering the flash.

The flash unit acts like it is connected via a PC sync cable – no auto TTL, no auto zoom control, no RC master capability.

If the X1 switch is turned OFF, then the flash does not fire at all.

If the X1 is switched ON and set to HSS mode, the flash will fire, but at shutter speeds above 1/250th sec, it will not sync properly as the flash HSS mode will not be activated – at 1/320th sec with an Olympus FL-50R flash only 1/3rd of the top of the image receives flash which is the opposite to usual over sync speeds and thus unusable.

The good news is that if the X1 is set to normal mode (not HSS), you can just use the flash in “AUTO” mode (you must manually dial in the ISO, aperture and exposure compensation as well as zoom position), or in Manual mode where you just dial in the manual flash output and the zoom position.

One man band hand held Octabox outdoor portrait shooting:

The Godox AD600B can be mounted to any Bowens S mount studio light accessory (there is a locking device to ensure they don’t fall off) such as the 43″ Godox Umbrella style Octabox softbox for nicely diffused portrait lighting, and usually these are mounted on a lighting stand.

However, the AD600/600B has a wonderful trick in that you can remove the flash bulb, plug in a remote head (the AD-H600B), plug the flash bulb into the remote head and mount your softbox to the remote head.

remote head

This allows you to carry the heavy part , the AD600 itself with battery, in a specially designed shoulder strap case (the Godox PB-600 should case/carry bag), or perhaps in a backpack, hand hold the AD-H600B with softbox attached in one hand and shoot with your light Olympus camera in your other hand.

Tiring – yes, but at least it is possible, and you may be able to overpower the sun!

Need more power? Just buy a 2nd AD600B and attach a 1200Ws AD-H1200 remote head with a 1200Ws bulb and you have twice the output from the one remote flash head!

And of course, you can add other radio remote slave units:

There are a range of other X1 compatible Godox flash units which can be used in the same or in different flash groups (each group will have the same exposure setting).

If the AD600B is too big for you, then you can still get to a Bowen S mount lighting system via the Godox AD-B2 twin head which allows you to use either:

  • power it with either one or two Godox AD-200 units plugged directly into it
  • use either one or two Godox AD 200 flah bulbs, or one Godox AD 360 bulb (which is a little more powerful than just using one AD 200 bulb)

If that is too big, then the very popular Godox Wistro AD360 with separate lithium ion power pack gives you plenty of power in a more speedlight styling although too heavy for on-camera use.

360

 

For additional remote slaves, there are the pocket sized but powerful Godox AD 200 units, or you can go the traditional speedlight route with a variety of Godox on-camera style TTL flash units – some of which are cross-platform for on-camera use on a variety of camera brands.

AD200

Godox also make a range of AC powered studio lights with various capabilities and also the AR-400 hybrid ring flash/LED.

But why stop there – you can even add a Cactus V6II radio remote flash system into the mix!

Now I am really going crazy!!!

Stacking a Godox transmitter on top of a Cactus V6 II transceiver really does work amazingly well to give you TWO SYSTEMS at the same time!

First, insert a Cactus V6 II radio remote controller onto the Olympus OM-D E-M1 Mark II camera’s hotshoe.

Insert a Godox X1 TO radio remote transmitter onto the hotshoe of the Cactus V6 II and turn it on.

Turn on the camera, and half-press shutter while turning on the Cactus V6 II transceiver to transmitter mode, it should then AUTO-DETECT BOTH the camera AND the Godox X1 as being Olympus TTL devices – now we are cooking indeed!

Ensure the Cactus and the Godox are set to DIFFERENT CHANNELS (and any slave devices for each are set to the appropriate channels to match).

NOW, you can use the Cactus V6 to control your Cactus V6 II compatible transceivers or flash units (and when the firmware upgrade comes this month hopefully, we are promised Olympus TTL compatibility of remote flashes – even Canon/Nikon flashes – until then we have to use manual power control only but there is HSS functionality) PLUS you still get TTL remote control of your Godox mediated slaves including the AD600B!!

Furthermore, if you set the Cactus V6II mode to Normal-HSS so it can automatically use either, the X1 switch of HSS or normal will control the Cactus and the camera as to whether to use HSS or not! Now that is very cool indeed.

I have tested this with a Cactus controlled remote Olympus FL-600R flash in manual output control at the same time as remote controlled AD600B in TTL mode and it seems to work very nicely, even in HSS/FP mode.

This should then allow 8 groups of flashes to be remotely controlled from your camera at up to 100m away, with each group having their own power output setting, and once the Cactus firmware is available – all with TTL and HSS functionality, even if they are Canon or Nikon flash units (just need a cactus V6 II transceiver for them).

If you have a Sony A7 II full frame mirrorless camera as well – just buy the Sony versions of the transmitters to go on the camera and all should be well.

Likewise for your Canon, Nikon or Fuji cameras (although for these you only need a special Godox transmitter as the Cactus V6 II will fit all except Sony).

Enter the new world of cross-platform radio remote TTL flash compatibility!

For more information on the Godox and Cactus systems see:

 

 

A break from the artworks – lets look at the exciting world of cross-platform radio remote TTL flash for Olympus, Panasonic, Fujifilm, Sony, Canon, Nikon, Sigma, Pentax users – our world has changed!

Friday, July 28th, 2017

Until recently if you wanted to do radio remote TTL flash, you needed a Canon dSLR with a Canon-compatible flash and a radio remote system, or a Nikon dSLR with a Nikon-compatible flash and a radio remote system.

Initially these radio remote systems were provided by companies such as PocketWizard or RadioPopper, and then a couple of years ago both Canon then Nikon added their own radio remote TTL flash to their latest cameras and flashes.

The PocketWizard system particularly became very popular with the professional photographers and is renown for its reliability, build quality and the early ground breaking ability to not only provide remote TTL flash and HSS flash and pas-through TTL to a top-mounted hotshoe but also its proprietary HyperSync which allowed full output flash at marginally faster than usual shutter speeds without the power output loss that HSS flash caused.

Unfortunately, Pocket Wizard failed to recognise the ground swell of mirrorless cameras and increasing cross-system ownership that has resulted and although they did create a remote system which supported the Panasonic GH4, in general their receivers would not fire Olympus flashes even in manual mode let alone TTL mode with Olympus cameras, and of course if you owned a couple of camera systems you had to have a different set of Pocket Wizard units (Flex TT5/TT6/MiniTT1)  for each camera system, and there was, and still is, no mix and matching of systems in TTL mode.

But its now mid-2017, and we are in a totally new scene thanks to Cactus V6 II remote system and the Godox remote system – both of which offer cross-platform radio remote TTL flash albeit with different approaches.

If I were to buy a flash unit or studio flash now, I would strongly consider how it would be used for my Olympus, Sony and Canon cameras with either or both of the two new systems – neither of which are perfect but a vast improvement on what we currently have, and far better than the rubbish optical remote RC mode of the Olympus system (yes, I love Olympus but I am not paid by any company including Olympus who have never offered me any freebies or special discounts and so yes, I am able to call them out when I feel it is appropriate – that said perhaps they have done us all a big favour in allowing these new third party solutions to come to the party and solve our problems).

Let’s compare the two cross-platform approaches to radio remote TTL flash:

The Cactus V6 II approach:

This is the more cost effective approach, particularly if you have existing flash units – you just buy 1 transceiver to mount on the camera and another to mount on your digital-TTL capable flash (the flash will need to be either Canon, Nikon or Olympus digital TTL capable – not Pentax unless you are also using a Pentax camera, and not Fujifilm unless you are also using a Fujifilm camera).

These transceivers are able to AUTO-Detect the camera or flash system (although there are a few gotchas and workarounds – see later).

This means IF it all works as the manufacturer suggests it will, you could buy 5 units, place one on your Olympus camera’s hotshoe (which can optionally also mount any digital TTL flash unit as outlined above) and attach one to each of a Canon 580EXII flash, an Olympus FL50R flash, a Godox TT685 flash and a Nikon SB-900 flash and ALL will fire with radio remote TTL exposures with flash exposure compensation in 0.1EV increments and separate for each (if they are assigned to one of the 4 possible radio groups)  and optionally in HSS/FP mode for faster shutter speeds and wider apertures, or one of the two Group Sequence modes, remote manual flash zoom, and even in the Cactus proprietary Power Sync mode which allows a slightly faster than usual shutter speed at full flash output – and yet there is much more it can do including display all flash unit power outputs, Delay mode, AF assist light and remote camera shutter release!

Decide to use your Canon dSLR to shoot instead, cool, just turn the transceiver off, put it on the Canon, let it auto-detect and away you go.

Working in an environment with lots of other photographers using the same system which is causing cross firing – no problem, just set all your transceivers to the same 4 digit RADIO ID value.

If you are running a workshop and want other users to fire your flash set up – no problem – just make sure they are using the same radio ID and turn on Multi-Master mode each photographer can choose their own exposure compensation settings – just try to avoid firing at the same time as someone else!

As an alternative, you can buy a very affordable Cactus RF60X flash unit which already has a remote transceiver built in so this saves you money and complexity.

Some gotchas and workarounds of the Cactus V6 II system:

  • there is a special Sony version of the transceiver (V6 IIs) which is required if you wish to attach to either a Sony camera or a Sony-mount flash, but it can essentially achieve the same as the above.
  • requires firmware upgrade for cross-platform compatibility, the Olympus/Panasonic/Micro Four Thirds compatibility should be available August 2017.
  • as with the Godox system, it operates in the 2.4GHz radio frequency range and this may have issues with interference at times and is generally limited to 100m
  • READ the MANUAL: to auto-detect camera system, half-press the shutter release of camera while switching on the V6 II to TX mode
  • Power Sync may require the user to adjust the sync time in order to eliminate any banding issues (black line across the image).
  • “Power Sync” may not give you much more and there is no option to go less than full power output – but then you usually want full power output in these situations unless you also need short recycle times.
  • Cactus V6 II does not work with Cactus V4, V2s or V2 flash trigger models (but is compatible with V6 but not in HSS mode, and with V5 for basic non-TTL modes only including flash triggering and shutter release triggering)
  • there is a limited range (currently 60 units) of currently available flash units that are automatically usable with this system – others will require you to create your own custom flash profile on your computer and upload it to the transceiver (this can store up to 10 such profiles) and then you will need to manually select which profile to use for the flash.
  • some cameras have a  thicker than usual metal spring plate in the hotshoe which can interfere with the flash contacts and this may need to be removed (easily done) – examples include some Olympus OM-D E-M1 and Fujifilm models – this does not appear to be a problem with my E-M1 mark I or mark II
  • the hotshoe locking pin position is optimised for Canikon and thus there may be some mechanical instability on other systems, when using Olympus flashes, moving it 0.5mm may remedy this, but there may still be issues on the camera and this becomes more risky if you are mounting a flash onto the camera-mounted transceiver as the weight may cause it to fall off – this does not appear to be a problem with my E-M1 mark I or mark II
  • the latest July firmware has issues with TTL passthrough when used with the Olympus E-M1 Mark II (mark I seems to be OK in brief testing)
  • there is limited compatibility with some cameras including:
    • Nikon D600 and Panasonic GX-8 camera are not fully compatible with HSS mode when used with a Cactus RF60 flash (but presumably the RF60X is OK)
    • high-speed sync modes not supported on Fujifilm X-E2 / XE2S, Fujifilm X100T cameras, and, Fujifilm flashes do not support HSS capabilities.

The Godox X1 approach:

Godox have really taken massive strides towards world domination of enthusiast and pro lighting (and their sudden rise in popularity perhaps may be part of the reason for Bowens lighting company apparently going out of business – although the Bowens name will live on thanks to the Bowens S mount which is one of the more universal lighting accessory mounts – including for the Godox studio style lights).

In the first instance they brought to the market their lovely, powerful and versatile portable flash units with lithium ion batteries and battery packs which have made strobists all over the world jump for joy.

Next, they upped the ante substantially this year when they announced cross-platform support.

Unlike the Cactus system (other than the dedicated Cactus V6 II Sony module), the Godox remote transceivers require a system dedicated transceiver attached to the camera hotshoe such as:

  • for Olympus or Panasonic cameras either:
  • for Canon cameras, X1C TTL Wireless Flash Trigger
  • for Nikon cameras, X1N TTL Wireless Flash Trigger
  • for Sony cameras, the X1S TTL Wireless Flash Trigger
  • for Fuji cameras, the X1T-F TTL Wireless Flash Trigger

Each of these camera mounted X1 triggers have a TTL-pass-through top hotshoe.

Like the Cactus system with their Cactus RX60X, there are Godox flash units with inbuilt receivers and a very nice range of units there are such as:

  • Godox Wistro AD600 portable 600Ws lithium ion battery studio flash with ability to be used with either a 600Ws or incredible 1200Ws flash head (this requires two AD600′s to power it), and optional lithium ion battery pack and Bowens or Godox mount studio lighting accessories such as softboxes
  • Godox Wistro AD360II - a more portable option but it is regarded as too heavy to mount on a camera, usually used with hand grip and power pack and strobists accessories
  • Godox Wistro AD200 pocket flash
  • Godox Wistro AR400 ring flash
  • Godox V860II-O - similar to an Olympus FL-50R in that it can use the Olympus optical RC system as master or slave, but in addition it can be used as a slave (and perhaps as a master according to web page specs) for the Godox  X1 system, and it uses a 2000mAh lithium ion battery pack for 650 full power shots per full battery charge

Unlike the Cactus system, if you wish to fire a non-Godox flash unit in remote TTL mode, you will need a different Receiver unit and specifically, one that matches the flash system, thus, for a Canon flash you will need the X1R-C receiver to attach the the Canon flash.

A brief side-by-side comparison:

 

Cactus V6 II Godox X1
Price $US95 per transceiver
$US46 for transceiver
types of units needed only 1 type BUT need a different one for a Sony camera or flash need a different one for each camera system, and a different receiver for each system of non-Godox X1 flash, for example, a XTR-16, XTR-16S receiver
radio frequency 2.4GHz, range up to 100m
2.4GHz, range up to 100m
radio groups 4
5
radio channels 16 32
Radio ID 4 digit
No
HSS / FP mode most cameras (except Fujifilm flashes)
most cameras except Fujifilm?
front/rear curtain sync Yes
Yes
Multi-flash strobe mode Yes
Yes
flash exposure compensation Yes, +/- 3EV in 0.1EV increments
Yes, +/- 3EV in 1/3rd EV increments
remote manual zoom control Yes
Yes
AF assist lamp Yes 1W LED
Yes manual open
Multi-Master mode Yes, up to 20 photographers
?
Power sync mode Yes but needs user to configure
Can sync E-M1 to 1/320th in PC-Sync non-TTL mode
Flash delay mode Yes 1msec to 999 secs
0-10msec for synch delay adjustment
hotshoe locks into Olympus cameras to avoid slippage Maybe (lock pin slightly out as optimised for Canikon) Yes (X1T-O)
PC sync socket Yes
Yes
USB firmware upgradeable Yes Yes
Can remotely trigger camera shutter release via cable Yes “Relay mode” – also available is a laser motion detection trigger to radio remotely act on the V6 II ?
power supply 2 x AA batteries 2 x AA batteries
size 72x72x42mm, 96g
72x75x52mm, 90g
ease of use must set to auto detect when starting, but otherwise fairly universal plug and play
camera-dedicated transceivers do not need to auto detect
low power output for short flash exposures 1/256th output
1/128th output only?
lock flash exposures Yes ?
display power of each flash unit Yes displays exp. compensation or power output fraction only
compatible flash units 60 plus ability to store 10 custom profiles which user can create, or Cactus V6 II specific units such as RF60X
system-specific flashes for the receiver, or Godox X1 compatible flashes including Wistro studio flashes
flash system for TTL mode when mounted on the transceiver on camera any compatible flash – should Auto-detect?? no passthrough TTL – single pin hotshoe only

 

Which system should you buy?

If you need to purchase new flash units, and in particular, the awesome units such as the Wistro AD600 or AD360II, then it makes sense to go with the Godox system as you just need the flash units and the system specific transmitter for each camera system you own.

If you already have a mix of flashes, or you wish to use the special features of the cactus system such as Power Sync, then the Cactus V6II transceivers would be the way to go, although you may be wise until Cactus finalises all their TTL firmware and it is found to work as advertised.

It would not be entirely crazy to have BOTH systems for different needs.

It does alter which flash units I would invest in though, and perhaps the 3rd party flashes may be the best approach although there is always a risk the camera manufacturers introduce incompatibilities, but it is likely that Cactus and Godox will be able to address these through firmware updates.

Many pros will stay with their tried and true Pocket Wizards which do use a different bandwidth and are system specific with no cross-platform TTL or HSS capabilities – and there is no Olympus version as yet – ah yes, I have been waiting nearly 10 long years for an Olympus version and still there is no word.

For more information on remote TTL flash, see my wikipedia pages.

Potsdam and the Sanssouci Palace of Frederick the Great

Saturday, July 15th, 2017

Whilst in Berlin, one should make sure they take the 45 minute or so train to nearby Potsdam and then a longish walk or taxi / bus to the Sanssouci Palace (Schloss Sanssouci) and its gardens.

Entry to the gardens themselves is via coin donation, but if you wish to book a time to see inside the palace, you need to go to the ticket centre where you may wish to purchase the option of being allowed to photograph the interior (but not publish the photos) – in retrospect, one probably does not need to photograph the interior unless you have a special interest.

Unfortunately, the Neues Palace was not open the day we went, and we were running short of time, only having an afternoon there.

It is a gorgeous way to spend a gentle summer’s day walking through the extensive gardens and then back to the Potsdam train station, stopping by the old church and then grabbing a lovely dinner at the cafe on the corner.

Unless specified otherwise, these were all shot with the Olympus OM-D E-M1 II Micro Four Thirds camera with Olympus mZD 40-150mm f/2.8 pro lens

Sansouci

This one was shot with the Olympus mZD 7-14mm f/2.8 pro lens

Sansouci

If only the statues and gargoyles could talk – what a history they have seen!

Sansouci

Sansouci

No, it’s not Napoleon but Frederick The Great:
Sansouci

Sansouci

A young lady posing on the steps of Orangerieschloss as a jogger passes by:

Sansouci

Sansouci

And if you like to people watch, the wonderful ambience and lovely angles of the sun make for some nice imagery if you are in the right frame of mind to look for them.

Sansouci

Sansouci

Sansouci

A beautiful image of a father taking his son for a walk:

Sansouci

When you walk back to the station there is an awesome old church (Friedenskirche) one can explore:

My friend Luigi posing for me.

Did I mention how lucky the northern Europeans are with their gentle angled summer sun in contrast to our high, harsh midday sun – when the sun is out in Berlin, beautiful sunlit images are easy!

Sansouci

A spy in the church with their iPhone:

Sansouci

My traveling band:

Sansouci

At the end of the day, dinner at the local Weiner Cafe on the corner of the Square with a view to the Potsdam Brandeburg Tor is a wonderful way to complete the afternoon. The main issue here is that the men’s urinals are obviously designed for tall Germans requiring tip toes for the height challenged!

Potsdam Brandenburg Tor:

Potsdam Brandenburg Tor

Weiner Cafe and Beer Garden:

Weiner Cafe

Berlin’s mixed architecture

Friday, July 14th, 2017

Berlin is a city of rapid change, dilapidated old communist styled austere buildings are rapidly being demolished to make way for modern developments – much to the chagrin and protests of locals, while 19th century buildings destroyed in WWII are still being re-built such as the palace near the Berlin Dome and the Kaiser Wilhelm Church.

Don’t forget to bring a rain coat, it does seem to rain often there and it is frequently very overcast – and I was there in late June – I did get absolutely drenched one day, but fortunately I was wearing quick dry shirt and shorts which had to be wrung out before I could allow myself entry back into the hotel in Potsdam Platz – I stayed at the Scandic Hotel which was very serviceable, clean and convenient with very friendly and efficient staff – only a hundred metres or so to train stations with their very regular train services (every 3-5 minutes or so) or the Berlin Mall shopping centre.

If you have not been to Berlin, here is a brief taste:

First we need to cross CheckPoint Charlie to get to the former East Berlin – this guy is just busking there posing as an American Soldier:

Berlin

Berlin

Berlin

The rebuilding of the Kaiser Wilhelm Church in West Berlin:

Berlin

Communist styled Berlin Philharmonic Centre in Potsdam Platz:

Berlin

The TV Tower which the East Germans built to dominate the city, but ironically, in their effort to marginalise the churches and religion, if you are lucky like me, in certain sunlight, their tower reflects a cross for miles which is said to be the Pope’s revenge:

Berlin

St Thomas Church:

Berlin

Berlin

A slice of the old Berlin Wall in Potsdam Platz taken with the Olympus mZD 8mm f/1.8 fisheye lens:

Berlin

The rebuilt Berlin Dome church:

Berlin

The wonderful old buildings in Berlin’s Museum Island – some lovely art galleries and the history of Germany museum, all well worth seeing – buy a Museum Pass and you get 3 days to access them for free – but don’t buy it on the weekend as they are nearly all closed on Mondays:

Berlin

Outside Alte Nationalgalerie with its late 19th century and 20th century art works:

Berlin

Outside Bode Museum with its older art works – mainly religious works from 17th century and earlier:

Berlin

The Amazon with Nefertiti which is housed in this Neues Museum, next door to the Pergamon Museum:

Berlin

East Berlin was known as the capital of Spies, and today there are thousands of them:

Berlin

Unlike Paris, you don’t really need to dress up in Berlin, the tourists and locals dress very casually, so these two caught my eye, and there is something about this cool guy that reminds me of a young Bruce Willis:

Berlin

Don’t forget to head down towards East Side Gallery area, as there are some great little spots on the way such as this dilapidated building:

Berlin

And a riverside bohemian bar which I am sure would be closed down due to safety concerns elsewhere, but it was a cool spot to have a beer:

Berlin

Last, but certainly, not least, one can’t forget the great Brandenburg Gate or Brandenburg Tor which has a fascinating history relating to Napoleon’s invasion of Berlin and his desire to take the horse statues back to Paris:

Berlin

Berlin

Postcards from Berlin: reflecting upon the holocaust

Friday, July 14th, 2017

My little trip to Berlin wouldn’t be complete without taking time out to reflect on how men can behave so inhumanely and yet we still have not learn’t the lessons of where fear takes us to the dark side of absolutes and persecution.

Here are a few of my take on the horrors of the holocaust in World War II – the memorial to the Murdered Jews in Berlin is a must see just to spend some time reflecting and to read the many stories.

Berlin

Berlin

Berlin

And, don’t forget the Jewish Museum and walking on these metal anonymous faces:

Berlin

Despite the sadness, Berlin is a wonderful, friendly city to visit which reminds me of my home town of Melbourne – perhaps it is the grunge and graffiti.

Focus Stacking for macrophotography – easy as pie with Olympus cameras

Friday, July 14th, 2017

One of the main problems with macrophotography is inadequate depth of field – that is, not being able to get your whole subject in adequate focus.

In the macrophotography realm, it is common to only have around 1-2mm of subject depth in focus, forcing one to either use very small apertures such as f/16 (which then drops resolution due to diffraction effects, increases how annoyingly busy the background is as well as requiring much longer exposures).

Die hard macrophotographers resort to a very complex, time consuming technique to address this called focus stacking whereby they take a number of shots at slightly different focus distances and then on a computer, use special software to merge these together to give an apparent expanded depth of view.

Olympus has recently come to the rescue for those of us who are not quite as obsessive, and added a brilliant little feature to their latest cameras which does all this automatically – albeit, with some limitations, critically you can only do 8 shots, you have to use the electronic shutter, and the final merged image is a slightly cropped jpeg image – not a RAW file, so you really need to get your exposure correct, your white balance correct (DON’T USE Auto White Balance!) and your picture style correct BEFORE you shoot.

For more information on this, see Olympus focus stacking feature on my wikipedia.

It does take a little trial and error in choosing the best aperture and the step differential for a given lens and subject.

The step differential is the distance the camera will adjust the lens focus between each shot, and Olympus allow you to choose a number between 1 and 9, but they incorporate a complex algorithm to determine how much 1 step equates to depending upon the aperture and focus distance chosen – in practice it seems that 1 step is approximately 1/3rd of the depth of field, and thus for most subjects you probably are best to use a setting of 3-5.

All of the following were shot with the Olympus OM-D E-M1 II Micro Four Thirds camera with Olympus mZD 60mm f/2.8 macro lens (jpegs straight from camera just re-sized for web), and whilst not true 1:1 macros, they are good examples of what most people might try outdoors:

Here is a single shot straight from camera to show that you can often get away without focus stacking by using a small aperture, but the cost is a very busy background – this is a small 2cm toadstool attached to the side of a eucalypt tree in a dark forest shot at f/16 with an 8 sec exposure at ISO 200:

fungi

Here is the same shot taken with automatic in camera focus stacking, 8 images, f/4 at 0.5 sec at ISO 200 – note it is slightly cropped, but the background is now a lovely soft blur while the mushrooms are still adequately in focus – just amazing that the camera’s algorithms can create such an image!

fungi

Here is a closer shot of same subject at f/6.3, 0.6sec, ISO 200 with 8 image focus stacking:

fungi

Another example of some tiny mushrooms on a tree stump taken with focus stacking – without focus stacking I could only get 1 or 2 of these in focus even using a small aperture, and even with 8 image focus stacking I needed to resort to f/11, 2 sec exposures at ISO 200 to get as much as this in focus. These were only about 8mm height for the tallest one:

fungi

One more example, of a larger group of mushrooms which had a dead mosquito stuck to the surface and a couple of minute mite-like insects nearby – this was taken with the 8 image focus stacking at f/8, 0.5 sec at ISO 200 and the image has been cropped into portrait aspect (it was getting late and dark and I couldn’t be bothered adjusting the camera into portrait on the tripod and re-composing).

fungi

Not all shots will work for you, and you do need to avoid camera shake when triggering the exposure – unfortunately, it seems you cannot set a self timer delay in this mode, and you must remember to focus on the CLOSEST part you want in focus – the bracketing is a bit of a misnomer here as it doesn’t bracket either side of your focus point.

In addition, you need to use a tripod, and a lens which is compatible with this mode, and remember to reset your manual focus after each shot.

The native live view of mirrorless cameras, ability to get accurate manual focus with magnified view, and the ergonomics of the flip out screen makes this kind of photography far more enjoyable than with a clunky dSLR. It would be nice if the Olympus smartphone app allowed focus stacking in remote control as this would allow a total no touch technique and less camera shake, but alas it doesn’t as yet.

You will be surprised at how useful this is.

Of course, if you want the BEST image quality you should use focus bracketing mode without in-camera focus stacking to give you a self timer and lots more images to play with -  this will allow you may to use a smaller step differential of 1-2 and MANY images – perhaps a hundred! Then you can load them up in your favorite focus stacking software and hopefully get less artefacts.

Amazing multicoloured bioluminescent Ghost Fungi mushrooms at night under an auroral glow

Saturday, May 27th, 2017

I went for a bush walk in a rather remote Victorian forest today and, unexpectedly, stumbled across an isolated patch of Omphalotus Nidiformis mushrooms – the “Ghost Fungi” which give off a very dim eerie glow in the forest at night (to our naked eyes without colour vision, using only rods in the dim light, they appear white).

He they are just after sunset taken hand held with the Olympus OM-D E-M1 II Micro Four Thirds camera with Olympus mZD 25mm f/1.2 lens (jpegs straight from camera just re-sized for web):

Ghost fungi

The above was hand held resting on my thigh at 1/4sec, f/3.5, ISO 1250.

Ghost fungi

The above was hand held resting on my boot at 1/4sec, f/2.5, ISO 640.

Ghost fungi

The above was hand held resting on my thigh at 0.6sec, f/4.5, ISO 1250.

So, hoping I was correct, I headed back into the closest town, had a quick bite, then headed back well after twilight had finished, and there they were, once my eyes had adjusted to night vision, the patch of fungi giving off their strange light.

Here are a few I shot with the Olympus OM-D E-M1 mark II with Olympus mZD 25mm f/1.2 lens sitting on a towel as a support (jpegs straight from camera just re-sized for web – no light painting or artificial lights, and white balance for these was set to sunny day):

Ghost fungi

The above was at f/2.8 (trying to get some more DOF), ISO 1600, noise filter = LOW, long exposure NR on with an 8 minute exposure using the very handy Live Timed function (I didn’t bring a remote to activate a BULB mode – thankfully the OM-D’s don’t need one!) and shows some lovely orange as well as green, with the top left corner being the brighter night sky (perhaps 2 stops brighter) illuminated by an Aurora Australis or Southern Lights.

The still night air without a breeze to be felt allowed me to use these nice long exposures, rather than having to open the aperture up to f/1.2 and loose depth of field even more than I was losing.

I could just imagine all the local insects coming out to dance and sing under the soft light – but it was too cold for most of them tonight – which saved me getting a few bites at least!

Ghost fungi

The above was as for the previous one but f/2.0 at 4 minutes exposure.

And, finally, just for a little fun at 10pm on a winter’s night, all alone in a remote forest, a fisheye view – taken with the unique Olympus mZD 8mm f/1.8 fisheye lens sitting on a towel at f/1.8, ISO 1600, 2 minutes to avoid the bright auroral sky washing out – and yes, you can tell it is looking south from the out of focus star trails making an arc around the South Celestial Pole somewhere near the centre of the image.

Ghost fungi

Camera settings for shooting these ghost fungi at night:

  • I used a 25mm lens (50mm in full frame terms) but one could go wider than this
  • getting adequate depth of field while keeping ISO low and exposure duration a minimum is a challenge without resorting to complicated post-processing focus stacking techniques – for the 25mm Olympus lens I prefer the f/2.8 setting but this required 8 minutes exposure at ISO 1600, if using an equivalent 50mm lens on full frame this would require using f/5.6, 8 minutes at ISO 6400 – so any high ISO benefit of full frame is lost.
    • if it is windy, then you will not be able to achieve nice imagery, even if you chose to shoot at f/1.2 and ISO 12800 to gain a shorter shutter speed, it may still be too long if the fungi are moving – go on a still night without wind, and suffer the pea soup fog on your drive home.
    • if you can’t shoot BULB (you didn’t buy an Olympus and you forgot your remote control), then you may need settle with f/1.8, ISO 6400 and 30secs
  • manual focus and a torch is a must – and it helps if your lens has a nice MF clutch, and your camera can do magnified view to allow you to accurately manual focus using a torch to assist
  • I chose to shoot sunny day white balance as I wanted to see what the colours were like compared to our normal visual experience of a sunny day
  • Noise filter should be set to LOW or OFF as ideally you should be removing noise in post-processing (I haven’t done this in these images – I will wait til I get a chance to process the RAW files)
  • Long exposure noise reduction should be set to Auto or ON – this does double the length of waiting for exposure to finish but it removes the thermal noise and you don’t need that!
  • I decided not to use my tripod as I wanted to be at ground level so i rested the camera on a towel
  • turn IS OFF
  • If you don’t have an Olympus camera then you will need to bring a remote trigger for your BULB mode to get past 30secs

The Olympus OM-D E-M1 Mark II with 25mm f/1.2 is great for this type of photography as:

  • the image stabiliser is fantastic when using it hand held for the dusk shots
  • ISO 1600 or 3200 is usable, and that is all you really need for the night shots
  • the flip out LCD screen means you don’t have to get down level with the camera on your stomach and get real dirty or have crawlies all over you
  • the 25mm f/1.2 not only is an amazing lens which focuses twice as close as similar full frame lenses, but it has a wonderful manual focus clutch
  • accurate manual focus is easy using magnified view mode
  • noise reduction phase displays a count down so you know how long you have left
  • if your torch is getting dim, you can have the Live Timed mode automatically activate Live Boost so you can see in the dark better
  • normal timed exposures go to 60 secs not like most other cameras where you need a remote control to activate BULB mode to get past 30secs
  • Live Timed mode allows you to visualise how the image is developing (eg. every 30 secs):
    • if you stuffed something up like composition, just terminate the exposure rather than wait until your planned exposure finishes
    • you can see how the histogram and image exposure is devloping, and then terminate when desired – this is how I chose to terminate the fisheye shot – when I saw the sky was starting to blow out
    • unlike BULB mode, you can set a duration for it to last and it will self-terminate the exposure without you having to be there with a remote control – this allows you to use another camera to do something else such as take Milky Way astroscapes while you wait 16 minutes for an 8 minute exposure and 8minute dark frame.
    • you don’t need a remote control – just wait for it to time out or press the shutter button to terminate exposure.
    • you can see from 5m away what the status is – is exposure still occurring or is it in noise reduction phase when its OK to turn torches on, or is exposure complete

For more mushrooms, see my previous post

Is this the biggest documented Amanita farinacea (Australian Flour Lepidella) mushroom – cap of 30cm diameter?

Sunday, May 21st, 2017

It’s Autumn in Australia and mushroom time.

I stumbled upon an amazing white mushroom in a Eucalypt forest at altitude around 800m on Mt Macedon in Victoria after the rains which was so big and white with a veil of delicate frills all around blowing in the wind and white drops on the ground nearby (hence the Flour in its name)  that it looked like it was artificial and someone had just dropped a can of white paint on to it!

As I understand it, all species of Amanita mushrooms have white gills underneath, and most are poisonous – these ones are not likely to be fatal, unlike the Death Cap (Amanita phalloides) with its amanitin toxins which destroy the liver in a few days.

Amanita Farinacea

The gigantic Amanita farinacea mushroom was adjacent a massive Eucalypt tree – I placed my iPhone 6s for reference and although I did not have a ruler, the cap of it measured at least 30cm in diameter – this species is usually said to grow to 10cm diameter.

A few days later, I found a more juvenile specimen some 10 meters away which stood some 6″ tall and perhaps 4-5″ in diameter:

Amanita Farinacea

Both of the above were taken in low light at dusk, hand held with the Olympus OM-D E-M1 II Micro Four Thirds camera and Panasonic Leica-D 25mm f/1.4 lens for Four Thirds, the first image shot at f/2.8, ISO 800 and 1/20th sec while the second image was shot at f/5.6, ISO 800 and 1/30th sec.

Some more common poisonous Amanita mushrooms:

Everyone’s favorite fairy tale fantasy mushroom – the colorful, warty, Fly Agaric (Amanita muscaria) from an oak forest:

Amanita

Olympus OM–D E-M1 II with Olympus mZD 75mm f/1.8 lens at f/1.8, ISO 200 and 1/100th sec.

The Fly Agaric is likely to cause delirium, hallucinations and possibly coma and seizures within 2hrs of ingestion – if someone was stupid enough to try eating one.

and presumably a related couple in a pine forest:

Amanita

The above was taken in very low light under dense pine forest canopy hiding adjacent to a fallen tree trunk, taken hand held with the Olympus OM-D E-M1 II Micro Four Thirds camera and Panasonic Leica-D 25mm f/1.4 lens for Four Thirds – f/2.5, ISO 500, 1/10th sec – thanks to the awesome image stabilizer in the E-M1 II.

And, who can resist some fall foliage?

foliage

The above was taken in very low light at dusk under a canopy of trees, taken hand held with the Olympus OM-D E-M1 II Micro Four Thirds camera and Panasonic Leica-D 25mm f/1.4 lens for Four Thirds – f/1.4, ISO 200, 1/15th sec – again, thanks to the awesome image stabilizer in the E-M1 II.

 

 

Sony A7II full frame with Canon EF 50mm f/1.8ii vs Olympus OM-D with PanaLeica D 25mm f/1.4 lens – real world comparison images

Monday, May 1st, 2017

These two lenses give a similar field of view – that of the “Standard lens” or 50mm in full frame terms.

I have posted similar DOF and background blurring comparisons for full frame 85mm f/1.8 vs Olympus 45mm f/1.8 and also full frame 85mm f/1.8 vs Olympus 75mm f/1.8 taken twice as far away.

This blog post is to demonstrate the slightly shallower depth of field (DOF) and more background blurring that a full frame camera can attain over a Micro Four Thirds camera – but does it make the image more aesthetic, and is the difference really worth losing all the fantastic benefits of Micro Four Thirds – smaller, lighter, less expensive kit, easier to take traveling, to social events and hiking, better weathersealing, better image stabilisation, touch screen AF, closest eye AF, more fun and versatility, and the list goes on.

Only you can decide if you really need to go shallower DOF – and of course on both cameras you can get even more shallow DOF – the full frame allows use of 50mm f/1.4 lenses (and even a Canon EF 50mm f/1.2L), while on the Olympus OM-D, you can use the wonderful superb Olympus micro ZD 25mm f/1.2 lens, and if you want, you can go to f/0.95 lenses but currently only in manual focus.

The Canon EF 50mm f/1.8 II lens is known as the plastic fantastic – perhaps one of the worst build quality of any modern AF lens, and a cheap price to match but it has reasonable optics – although, not the sharpest tool in the shed wide open, and has lots of vignetting on the Sony a7II, plus lots of coma aberration and the bokeh is quite busy and often annoying – but this comparison is just to show DOF and degree of background blurring at f/1.8. When used with the Sigma MC-11 EF-Sony lens adapter, you do get fairly fast AF but no Eye AF, BUT it is very frustrating to use as you must re-mount the lens every time the camera is turned off or goes to sleep, and sometimes AF is a very slow stuttering experience. For some reason, the Sony a7II under-exposes this lens at f/1.8 but not at f/2.8 – very strange indeed!

On a full frame camera such as the Sony A7II mirrorless camera, the Canon EF 50mm f/1.8 ii provides the user with a further 1.3 stops of shallow depth of field options when compared to an Olympus OM-D E-M1 II with the old, now discontinued, Panasonic leica D 25mm f/1.4 Four Thirds lens but will this really matter for most people and will the many benefits of the Olympus system outweigh the DOF benefits of the full frame system?

Note that this Four Thirds lens is one of the few that is compatible with CDAF, but for some reasons, AF is stutteringly slow on the Olympus OM-D E-M1 mark I but works fine on the mark II camera. This lens was replaced with a smaller, lighter, less expensive Micro Four Thirds version. Neither are weathersealed but the new Olympus mZD 25mm f/1.2 lens is.

Real world lens tests:

Let’s have a look at some jpg images straight from camera (just resized for web viewing) with both lenses wide open as I walked around some gardens yesterday, not really looking for great shots, but shots to show difference in depth of field and image quality between the two systems when taken from the same camera position.

The Panasonic 25mm f/1.4 lens is first then the Canon 50mm f/1.8 lens, both taken from same camera position:

lenses

lenses

Note that the severe mechanical vignetting of the Canon EF 50mm f/1.8 II lens on the Sony a7 II is causing much more annoying “cat’s eye” shaped bokeh near the edges – note the sky highlights, as well as much darker corners. In addition, the longer aspect ratio of the full frame system makes it harder to exclude distracting skies in portrait orientation than it is with the wider Micro Four Thirds 4:3 aspect ratio – another reason I prefer Micro Four Thirds for portraiture.

lenses

lenses

lenses

lenses

The greater blurring capability of the full frame is well demonstrated here but the near out of focus leaves on the right are far more annoying with their distracting bokeh compared to the less blurred but less distracting bokeh of the Panasonic image.

lenses

lenses

When the focus point is farther away, the difference of the degree of background blurring becomes less between the lenses – as demonstrated with my previous posts.

lenses

lenses

For this image, the 25mm lens gives adequate subject isolation and background blurring, and I think it has much nicer bokeh, plus if you look at the highlight area of the statues’ head, the cheap and nasty 50mm lens has much more flare, softer, less contrasty imagery – that’s one of the resons why you may want to pay more for a higher quality lens!

lenses

lenses

Again the 25mm gives adequate background blurring and it is less busy – look at the branches of the birch – but this bokeh issue is not a full frame versus MFT issue but a lens design issue.

lenses

lenses

The larger out of focus circles of the 50mm are actually much more distracting and annoying – sometimes the more background blurring is actually worse for aesthetics!

lenses

lenses

Again the 25mm gives adequate background blurring and it is much less busy with nicer bokeh.

lenses

lenses

lenses

lenses

This closer image of grapes, looks nicer with the 50mm lens to my eye as the much larger out of focus bubbles make it less busy.

lenses

lenses

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The 50mm lens here is giving too much background blurring making it hard to work out what is in the background which can work against the aesthetics by making the viewer work too hard – of course, the 50mm could have been closed down to f/2.8 to address this.

lenses

lenses

The bridge looks busier on the 50mm lens – the 25mm to my eye is giving nicer bokeh and sufficient background blurring.

Moral of the story:

Just buying into a full frame system does not guarantee you nicer looking, shallower depth of field, more aesthetic bokeh – you do need to choose your lens carefully, and lens design is always a trade off between wide open sharpness vs wide open bokeh:

The superbly sharp, big, heavy, expensive, Sigma 50mm f/1.4 Art lens has busy, distracting bokeh – sort of defeats the purpose of having a shallow DOF lens.

The Canon EF 50mm f/1.2L lens has buttery smooth bokeh but is soft (not that sharp) wide open with lots of aberrations.

The Canon EF 50mm f/1.4 lens is soft wide open with lots of aberrations and often busy bokeh but at least it is relatively small and inexpensive.

The Sony FE CZ 55mm f/1.8 ZA is sharp across the frame, relatively compact but has busy onion ring bokeh and costs $AU1150.

The Sony FE 50mm f/1.4 ZA has nice bokeh and is sharp in the centre wide open but is soft half way to edges and will set you back $AU2250!

See also my comparison table of the high end 50mm AF lenses for a Sony full frame.

And here we have the full frame conundrum – which is the lens that suits your needs best and can you afford the cost and weight?

If you are going to have stop it down to f/1.8 or more for adequate image quality or depth of field, then perhaps you are not really gaining much over an Olympus 25mm f/1.2  lens which is weathersealed, compact, relatively light, has almost zero aberrations and minimal distortion, probably better edge-to-edge sharpness wide open, can focus twice as close, has a lovely manual focus clutch, and has by far the best image stabilisation of 5EV 5 axis IS when used with Olympus OM-D cameras, which also allow fast, accurate AF almost anywhere in the frame (not just near the middle and which can be activated rapidly by using the touch screen or even the touch of the Live View screen on a wifi tethered smartphone) and with ability to accurately AF on the closest eye – just awesome! And that’s not all – on the E-M1II you get continuous AF at 18fps and silent shutter, not to mention the unique Olympus Live Composite mode for doing star trails, car headlights, etc at night, and for static scenes with tripod, the ability to shoot 50mp Hi Res shots.

ps… I didn’t do this comparison with the Olympus 25mm f/1.2  lens as I don’t own one ….. yet! :)

In the end, do you really need the extra shallow DOF that full frame affords when you are giving up so much to have it?