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Rainforest bushwalk with the new Olympus mZD 60mm f/2.8 macro lens

Saturday, December 8th, 2012

Olympus released the Olympus 60mm f/2.8 macro lens for Micro Four Thirds cameras in the middle of this year and I am now a proud owner of said lens.

I took it for a test drive on a few 4 hour rainforest bushwalks in our lovely Otway Ranges. I decided to leave my tripod and ring flash home so I could hike with a lighter pack – after all that is one of the enormous benefits of Micro Four Thirds – lighter, smaller cameras and lenses, reduced need for tripods as you can hand hold the Olympus 12mm lens down to about 1/3rd of a second to get those flowing water shots, and if you do want to bring a tripod, you can get away with a smaller, lighter tripod and tripod head.

These have had minimal post-processing in Lightroom with some vignetting added and some tonal adjustments done.

This lens has lovely bokeh!

Carnivorous native rainforest wild flower, Stylidium graminifolium:

carnivorous wildflower

Romance in the rainforest:

romance

I spotted this tiny 3mm subject on a rock and thought it may be a rare type of carnivorous Otway snail … but on closer inspection it was just some hardened sap droplet which had fallen from the trees, but nevertheless, a worthy subject:

carnivorous snail or..

The Australian native bull ants are quite large ants measuring up to 2cm or so long, and have a painful bite which can be fatal if you happen to be allergic to it. This one was foraging in the dark recesses of the forest floor and was about 1cm long and normally very hard to focus whilst moving but the 60mm macro did a great job after a few tries of me getting used to how it worked:

bull ant

Lastly, a native Pelargonium wildflower:

Pelargonium

The many formal lens tests show that this lens is at least as sharp and optically excellent as is the brilliant Olympus ZD 50mm f/2.0 macro lens, but this lens is lighter, has closer macro capabilities of 1:1 macro, faster, more silent AF, and importantly has autofocus limiters and a switch to take you to 1:1 focus point.

For hand held work at close macro distances near 1:1, even using the fantastic Olympus E-M5 with its 5-stop 5 axis image stabiliser, the high magnification requires shutter speeds faster than 1/125th second for reliable shooting.

Now I am just waiting on the Olympus Ring Flash adapter, and hopefully Olympus will develop a new macro flash system which is smaller, lighter, and be a master for controlling the remote TTL flashes – a major deficiency with the current macro flash system.

More photos on my Flickr account using this lovely lens can be seen here.

Refractive droplet macrophotography with the Olympus E-M5 – a clock inside a drop

Tuesday, August 14th, 2012

One of the local hospitals asked me if I could create an image that relates intravenous cannulae with time so they could use in a campaign to reduce complication rates.

Here are a couple of my first cut ideas without any Photoshopping other than some cropping and resize for web.

In other words, they are essentially straight out of the camera – no tricks.

The idea shown on this post is to create an image of a clock visible within a tiny droplet coming from an iv cannula.

You will need to click on these images to get the larger view.

antique clock in a drop

Droplets refract light and will thus “contain” an image of a lit object some 30cm behind the drop (albeit an upside down one).

In the image above, I chose an antique clock as I wanted the gold and orange tones to complement the blue of the cannula, but as the clock was so detailed, I ended up having to crop it more than I would like to make it obvious it was indeed a clock inside the drop.

Realising this difficulty, I decided to try again with a simpler designed, rather plain clock that anyone would recognise even in a small image, hence the following photo:

plain clock in a drop

Equipment used:

Olympus E-M5 Micro Four Thirds camera with Olympus ZD 50mm f/2.0 macro on a tripod:

  • allows 9fps manual focus burst rates to catch the split second of the drop about to fall
  • allowed live view magnified image to constantly allow me to adjust the manual focus to deal with the changing droplet size and placement of the clock image
  • the Olympus macro lens is recognised to be one of the sharpest lenses ever made
  • ISO 200 for maximum image quality
  • shutter speed at flash sync 1/200th sec to reduce effects of ambient light
  • aperture f/8-11 to give reasonable depth of field but still allow the background image of the clock to be adequately blurred
  • manual focus – I would rarely if ever use autofocus for such close up photography!
  • manual exposure of course
  • IS = off as camera on tripod
  • no need to constantly set mirror up unlike with dSLRs as there is no mirror

Lighting:

  • off-camera flash set to 1/32nd – 1/64th output to allow rapid sequential shooting
  • any flash could have been used for this purpose as long as it can be set to manual and a small output
  • I actually used a Canon 580EXII flash mounted on a Pocket Wizard FlexTT5 radio controller which was controlled by a PocketWizard MiniTT1 mounted on the camera hot shoe with both being programmed to basic non-TTL mode.
  • you could use any cheap Chinese flash controller for this, or use a off-camera cable (Canon or Olympus) attached to your flash, or you could potentially use an on-camera flash such as the Olympus FL-50(R) and bounce it off a nearby white object.

Then it is trial and error:

  • adjusting exposure – ISO vs flash output setting (one does not wish to change aperture as this is dictating how the image will look)
  • getting the distance from droplet to background image right (to get the correct size image in the droplet)
  • getting the camera to droplet distance set for the composition and ensuring that when you use DOF preview, your background view of the actual clock will not look too distracting.
  • timing your shots for the droplet

More information of photographing droplets can be seen on my photo wiki.

A quick close up portrait of a beautiful iridescent green-blue stag beetle using the Panasonic GH-1

Monday, January 16th, 2012

I found this lovely beetle whilst going for a jog in a Eucalypt woodland near Melbourne and he obligingly sat on my hand for the long walk back to my car.

He wouldn’t let go of my camera bag and as I only had a couple of minutes to get a photo, here is what I had to come up with – apologies it wasn’t in its native environment. My wife let him go while I was out so I didn’t get another chance for a shot.

Nevertheless, all my trawling on the net and I haven’t been able to find one with the same blue on green colors.

I believe it belongs to the Lamprima spp. of the Lucanidae family and I guess it is a close relative of the Golden Green Stag Beetle.

Note the large mandibles.
stag beetle

Panasonic GH-1 Micro Four Thirds camera with Olympus ZD 50mm f/2.0 macro lens and Canon ring flash at f/16.

The ring flash was hand held away from the lens.

Some vignette added in Lightroom.

A rose on the first day of Spring – Panasonic GH-1 + Olympus ZD 50mm macro lens + Canon ring flash

Saturday, September 3rd, 2011

On the first day of spring here in Melbourne, Australia, one of my David Austin roses was just starting to bloom, so what a good excuse to get my gear out.

As you can see, I am not really a fan boy – I use whatever equipment I have that will do the job, in this case, a Panasonic GH-1 Micro Four Thirds camera with Olympus ZD 50mm f/2.0 macro lens and a Canon Ring Flash in manual exposure mode at ISO 100, f/14, flash output at its lowest (1/64th).

Although the rose was a gorgeous apricot color with pink tinges, I decided I would prefer to concentrate on the delicious tonings, curves and edges, and only conversion to black and white would achieve this.

Minimal post-processing otherwise.

rose

Photographing Australia’s alpine snow regions – a few essential tips for photographers

Tuesday, July 19th, 2011

Alpine snow regions in Australia are confined to the south-east and have a relatively short season from June-September.

Snow mainly falls down to altitudes of 1400m, but on the uncommon days of very cold Antarctic blasts, snow may fall to as low as 900m.

During the snow skiing season, photographers have limited access to these regions as snow ploughs clear the road and heap snow on the sides of the roads preventing ability to park your vehicle other than at designated areas – not very helpful for photographers!

Most of Victoria’s snow fields are within 2-4 hours drive of Melbourne, but those with 2WD vehicles will need to use snow chains once they reach the snow, while those with 4WD vehicles will need to carry snow chains.

Treacherous cold beauty of winter on Mt Buffalo. Panasonic GH-1 Micro Four Thirds camera with Olympus ZD 7-14mm lens ISO 200, f/5.6, 1/80th sec, 13mm focal length, uncropped, minimal post-processing:
Treacherous cold beauty of Mt Buffalo

 

Planking on a cliff face photographing a waterfall with care. Canon 1D Mark III dSLR camera with Canon 135mm f/2.0L lens, ISO 200, f/2.0, 1/500th sec, uncropped, contrast enhanced in post-processing:
Planking on Mt Buffalo

Be safe:

  • most Australians are occasional visitors to the snow and thus lack of experience can be a major issue – the snow regions do create significant risks, not only of vehicle accidents on black ice, but personal accidents due to slipping on ice which could easily result in a broken limb or serious head injury from a simple fall onto the boulders. Furthermore, it does not take much to get cold, wet, hungry and even lost.
  • tip #1 – if possible take an experienced person along with you, if you are a keen photographer, consider hiring the services of local professional photographer and alpine hiker such as John Mitchell – I can highly recommend him – not only will he pick you up and drop you back to your accommodation, but he will supply lunch, drinks and watch for your safety as he takes you to great locations which you would otherwise not consider, and help you with your photographic skills one on one.
  • tip #2 – be prepared and keep yourself warm and dry:
    • very waterproof leather boots (apply Dubbin or a bees wax product to them before going)
    • wear 2 pairs of merino wool socks
    • layers of clothes with an outer waterproof layer over your pants (you do need to get down on your knees to get good shots sometimes) and of course, a waterproof jacket
    • consider waterproof gaiters which attach to boot lace and and can be laced under the boot to ensure a snug fit to minimise snow getting up your trousers.
    • several pairs of light weight gloves designed for operating your cameras – once a pair gets wet with rain, you need to change to dry pair – if your fingers get very cold, that is the end of your photography for the day – prevention is better than cure!
    • beanie or similar for your head
    • use lip balm to prevent chaffed lips and subsequent cold sores
    • if sunny, wear wrap around UV sunglasses to prevent UV burns to your eyes from reflected sunlight from the snow
  • tip #3 – don’t slip and fall over, or get lost:
    • walk with knees bent to keep your centre of gravity low and help ensure you fall forwards instead of slipping backwards and giving yourself a signficant head injury.
    • avoid walking on ice – stick to the snow
    • cloud and snow can hide crevices and cliffs – keep to the paths and don’t wander off alone as one can get disoriented very easily, and your iPhone GPS is not going to be much help
    • consider bringing a radio beacon in case you do get lost (which you won’t be silly enough to do), or to call for help if your vehicle or yourself becomes incapacitated.
  • tip #4 – don’t carry too much gear:
    • try to anticipate what you will need
    • if it is thick cloud on the mountain, bring a wide angle lens – you almost certainly will NOT need a lens with focal length greater than 100mm in 35mm terms – you will not be able to see much more than 20m in front of you anyway and a telephoto is not likely to find much use in those conditions. Likewise, a large sensor camera to get the shallowest depth of field and lovely bokeh is not going to be so important, so consider making life easy for yourself by taking a smaller camera with a wide angle lens and perhaps a macro lens.
    • you should consider a nice light weight carbon fibre tripod if you are wanting to photograph waterfalls or streams with long exposures (consider bringing a polariser or ND filter to help here)
    • do bring that lens hood – not only will it help to reduce flare, but more importantly, it will help prevent rain hitting the front element of your lens, and we definitely do NOT want that happening, even if you do have a filter on!
    • if you have an assistant, a towel to shelter under (not wipe your glass!), or even better if it is raining but not windy, an umbrella to help protect rain from hitting the front element of your lens.
A Panda bear on Mt Buffalo? Canon 1D Mark III dSLR camera with Canon 135mm f/2.0L lens, ISO 200, f/4.5, 1/125th sec, uncropped, contrast enhanced in post-processing:
Panda bear on Mt Buffalo

How to take great photos in the snow when it is covered by cloud:

  • tip #1 – make sure your batteries are freshly charged and bring a spare
    • lithium ion batteries are not as susceptible to the cold but it is wise to optimise the battery life in the snow
    • consider keeping them warm when not in use (eg. in your pocket)
    • avoid excessive battery usage – minimise LCD use. minimise AF use, turn camera off when not in use
  • tip #2 – keep your camera gear dry
    • if it is raining, your camera is going to get wet
    • most camera bags have a rain protective cover – use it
    • if you have a pro camera and lens, this moisture is not an issue for the electronics or internal glass elements as these are usually sufficiently weatherproofed
    • if not, allowing your camera to get wet is risking it suddenly stopping working – my Panasonic GH-1 Micro Four Thirds camera did get quite wet but luckily functioned flawlessly for me apart from the usual “Lens not connected properly” error message I get when using an adapter for lenses and they are not tightly connected.
  • tip #3 – keep front element of your lens dry
    • water droplets on the front element will mean NONE of your photos will be usable!
    • use your lens hood
    • keep lens facing down as much as possible
    • have an assistant provide shelter for the lens
    • droplets on your lens as well as dust on your sensor become more obvious in your images at smaller apertures (eg. f/8-16) and these small apertures are often needed in landscape photography to give adequate depth of field, or allow for long exposures if you forgot your ND filter.
  • tip #4 – avoid condensation on your camera and lens
    • fog on your front element will seriously degrade your image quality and wiping the fog off should be avoided – let it evaporate
    • fog in your viewfinder will make it hard to use
    • if you bring your cold camera into a warm, humid environment such as under your jacket or indoors (eg. in a warm car), you will get condensation forming which not only will cause issues by fogging the front elent and your viewfinder, but can risk moisture getting inside your electronics.
    • even placing your camera with lens down into your external jacket pocket will result in lens condensation – keep it away from any warmth!
    • consider placing camera inside a sealed plastic bag until it warms up, or keep it in a cold bag to keep it cold if you plan on using it outside again (but consider removing the battery to keep it warm).
  • tip #5 – set camera to RAW mode
    • low contrast scenes in cloud with snow mandates sugnificant post-processing to adjust contrast – give your photos the best chance by using RAW files instead of only 8 bit jpegs
    • snow scenes are difficult for automatic white balance so RAW mode makes adjusting this in post-processing much easier
  • tip #6 – use custom white balance
    • AWB on your camera is not likely to give the best results
    • do a custom white balance preferably off a gray card, but you might be able to use gray clothing
  • tip #7 – use manual exposure
    • camera light meters are not good enough to get reliable exposures of snow scenes as they will be trying to make all your nice white snow look 18% gray
    • so set your exposure mode to manual and determine the settings yourself
    • the best option is to use a hand held incident light meter
    • alternatively, one can use the histogram to ensure highlights are not being blown out
    • if you must meter with the camera, then try to find something which is 18% gray such as a boulder or a jacket
    • if in doubt, bracket your exposures by +/- 0.5 – 1.0 stops
  • tip #8 – avoid deleting images in the field
    • you never know what can be retrieved by adjusting contrast, etc in Lightroom or Photoshop
    • avoid judging an image based on the appearance on the camera’s LCD screen
  • tip #9 – look for color contrast to add punch
    • snow scenes tend to be largely gray scale affairs with low contrast
    • look for brightly colored subjects to add color contrast – consider using an ultra wide angle lens to get in close
  • tip #10 – images still look crap when you get home?
    • as long as you have got your exposure reasonably close and your composition is good, don’t despair as most snow scenes in cloud need some post-processing to add contrast and alter tone curves to give you the ambience you want
    • consider converting to monotone given they are largely monotone anyway
Anyone for a nippy dip? The swimming pool at the deserted chalet. Panasonic GH-1 Micro Four Thirds camera with Olympus ZD 7-14mm lens ISO 200, f/5.6, 1/80th sec, 14mm focal length, uncropped:
swimming pool
When you get too cold and wet, time to move down the mountain out of the cloud for relative warmth and different scenery. Canon 1D Mark III dSLR camera with Canon 24-105mm f/4L lens, ISO 100, f/8, 0.8 sec, polarising filter, uncropped, minor enhancement in post-processing:
Eurobin falls
Time to get the macro lens and tripod out at the top of a waterfall. Panasonic GH-1 Micro Four Thirds camera with Olympus ZD 50mm f/2.0 macro lens ISO 400, f/16, 0.62 sec,uncropped, no post-processing:
macro
Who can resist the ambience of a mountain stream. Canon 1D Mark III dSLR camera with Canon 24-105mm f/4L lens, ISO 100, f/16, 2.0 sec, polarising filter, uncropped, minor enhancement in post-processing:
stream
Ice on the rocks with the Canon. Canon 1D Mark III dSLR camera with Canon 135mm f/2.0L lens, ISO 200, f/4, 1/125th sec, uncropped, major contrast enhancement in post-processing:
snow on the rocks
Fallen tree. Panasonic GH-1 Micro Four Thirds camera with Olympus ZD 7-14mm lens ISO 200, f/5.6, 1/60th sec, 8mm focal length, uncropped:
fallen tree
Patterns in nature. Panasonic GH-1 Micro Four Thirds camera with Olympus ZD 7-14mm lens ISO 200, f/5.6, 1/60th sec, 14mm focal length, uncropped:
patterns

What have you learned from the above images?

1. you don’t need ISO above ISO 400 so any modern cropped sensor camera will handle this scenery well – don’t get yourself worried about all those camera tests comparing ISO at 12,800 – high ISO shooting is really only needed for certain niche photographers. The landscape photographer, like most photographers, generally shoot at low ISO and preferably with a tripod.

2. the limiting factor is not the camera or lens, but YOUR ability to adjust the camera’s settings effectively and to ensure the lens glass remains clear.

3. don’t forget your tripod and polarising filter for those waterfall shots.

4. in the cloud, an ultra wide angle lens comes into its own while a telephoto has limited utility, but try to avoid getting too much brighter cloud in your image, as viewer’s eyes tend to go to bright areas, and this cloud will have little detail to warrant the viewer’s attention, and thus generally will detract from the image.

5. with more endeavour and time, a number of different imagery styles could be derived from the initial base images, and these could be further “enhanced” because the initial exposures generally included the full dynamic range that was important with minimal if any blown highlights. Note I have intentionally under-exposed a couple of the above for effect.

As an aside, I am really looking forward to a weather-proof Olympus Pen Pro with built-in EVF and image stabiliser to use with the very nice new Olympus 12mm f/2.0 lens, so please Mr Olympus, bring it on!

Suspended water droplets using the Olympus ZD 50mm macro on a Panasonic GH-1

Tuesday, April 26th, 2011

droplets

Sigma EM-140 DG macro “ring” flash

Wednesday, June 30th, 2010

I managed to pick up a second hand Sigma EM-140 DG Ring Flash for Canon EOS this week mainly because it was going relatively cheaply and I needed a TTL macro flash for my Canon kit but didn’t want to pay for the Canon macro flash.

Sigma EM-140 DG macro flash

I already own the Olympus Ring Flash which I love but obviously, it doesn’t work in TTL mode on my Canon 1D Mark III, and it doesn’t attach to lenses via a filter thread thus requiring it to be hand held on lenses for which it was not designed.

Unfortunately, Sigma’s website doesn’t explain the realities with this flash, and worse, does not allow a download of its user manual so you can determine if it will suit your needs or be a lemon.

Let’s look at the Sigma flash, firstly the cons:

  • although it looks like a ring flash, it is NOT really a ring flash but really a twin flash mounted in a flat ring. This is not going to create circular catchlights!
  • for some strange reason, it cannot be triggered in manual mode on a non-Canon camera, even if you try to manually short the hot shoe contacts to check its trigger voltage, it won’t fire – so forget using it on any camera for which it was not designed – a big disappointment!
  • it has “wireless TTL” and can act as a Master flash to trigger another flash – as long as that other flash is a Sigma EF530 – wireless TTL is NOT possible with Canon flashes using this flash as a master flash!

Now the good points:

  • it is relatively cheap (RRP $US480), and light (430g w/o batteries)
  • you can adjust the ratio  between the two flash tubes to give more directional lighting
  • you can use FP flash mode (high speed sync) on E-TTL compatible cameras
  • you can use second shutter curtain sync and FE lock
  • you can use multi-fire mode which allows repeated flashes from 1-199 Hz
  • flash exposure bracketing mode for 3 shots to give total of up to +/- 3 stops in 1/3EV increments
  • it does have a modeling lamp which can be activated via the camera’s preview button
  • it does have a lamp to add more light to the subject to assist composition and focusing
  • it is relatively simple to use as long as you don’t need to do wireless TTL – you will need to bring the instruction book with you!
  • it snaps onto supplied lens filter thread adapters – two of which are supplied (55mm and 58mm), and you can buy other adapters – either 52mm, 62mm, 67mm, 72mm or 77mm which means you can attach this flash to a wide range of lenses.
  • GN 14m (ISO100) is reasonable for a macro flash

Impromptu macrophotography in a forest with Micro Four Thirds without a tripod

Sunday, May 23rd, 2010

Last week I went for my usual forest walk and decided that I would only take my Panasonic GH-1 with Olympus 50mm f/2.0 macro for Four Thirds, the Olympus EC-20 2x teleconverter and the Olympus Ring Flash.

Personally, I think the Micro Four Thirds system is a great option for macrophotography as:

  • the sensor is large enough to give great image quality even at ISO 800 when you need to use a faster shutter to minimise camera shake or use a smaller aperture to give adequate depth of field – this is a problem with the “compact digitals” such as the Canon G11.
  • manual focus is MUCH easier than on a dSLR as there is no need to move the mirror out of the way to do magnified live view manual focus
  • you do not need to worry about mirror lockup before you take the shot to minimise camera shake due to mirror vibrations at such high magnifications, because there is no mirror to worry about.
  • the swivel live preview LCD is just brilliant when doing ground level macro shots, and it allows you to keep your eye out for other nasties which may be nearby. NB. only the Panasonic GH-1, G1, and G2 have a swivel LCD at present.
  • you can use almost any macro lens ever made, with extension tubes or bellows if need be, and the 2x crop factor will in effect give you more magnification or more working distance.
  • you can buy a tilt adapter which can convert any legacy macro lens into a tilt macro lens which can be extremely useful to change to focal plane to achieve greater depth of field or to selectively focus on one plane.

First, here is one without the Ring Flash or teleconverter – just hand held close to the ground in low light conditions using the wonderful swivel LCD of the Panasonic GH-1 and manual focus (ISO 800, f/5.6, 1/160th sec, no Photoshop, no cropping):

Remember to click on these to get larger views.

Mushroom

and a European wasp (I presume), using the ring flash hand held off to camera left with the 2x teleconverter and again the camera near ground level using the swivel LCD and manual focus hand held (no PS, no cropping):

Wasp

and here is a medium sized (~15mm) Australian native bull ant (these can give you a very nasty sting and, along with bees, are the most common cause of human deaths in Australia due to animals – if you are allergic to them!). At such high magnification levels, a moving subject such as this can be very difficult – all the more so when you need to keep an eye out for her and her friends! (no PS, no cropping)

ant

Macro extension tubes for Micro Four Thirds

Saturday, May 15th, 2010

Panasonic and Olympus are yet to produce a macro extension tube for the Micro Four Thirds camera system.

This is somewhat unfortunate given that the Micro Four Thirds system is better suited to macro work than dSLRs as:

  • accurate manual focus is much easier and faster to use as there is no mirror to move out of the way
  • lighter cameras means your hands don’t tire as quick when doing hand held nature work
  • 2x crop factor gives you more magnification or working distance
  • smaller sensor may allow more depth of field which is so critical in macro work
  • the flip out swivel live LCD of the GH-1 further adds to its versatility in macro work

Of course you can use practically any macro extension tube set ever made – for example you can use an Olympus OM extension tube or bellows with an Olympus OM lens – all you need is an OM-MFT adapter.

But now there is another option which will suit those who have various brand macro lenses – Rong Jin (jinfinance/muh) has just announced availability of a Micro Four Thirds (MFT) extension tube set on Ebay shipped from China  for $US38.50 – see here.

As this is a MFT mount tube set, it means you could use any MFT lens with it – but unfortunately, you will not be able to change its aperture or use auto-focus as there is no electrical coupling available.

This means this extension tube set would be most useful with legacy lenses which have an aperture ring and means all you need is a legacy lens to MFT adapter to use a legacy lens with it.

Note that Rong Jin also makes a large range of legacy lens to MFT adapters – see his Ebay store.

Oh, and if you don’t believe me that MFT can do great nature macro shots, check out Fardel2009 on Flickr who uses a Panasonic GF-1 with Leica 45mm MFT macro lens to give shots such as these:

CATCH - ARRIBA LAS MANOS

and

OJO ROJO 2 - CLOSE UP FLY - RED EYES

Macrophotography with the Micro Four Thirds – what options do we have?

Monday, January 11th, 2010

This post is an attempt to answer one of my reader’s questions on whether to buy a GH-1 for dental macrophotography.

As popular as the Micro Four Thirds cameras have been in 2009, the system is still very young, and one area that is yet to be developed adequately is macrophotography.

Micro Four Thirds allows you to embark on either an expensive auto-focus route with the Leica-D 45mm f/2.8 macro lens, or an extremely large range of very cheap but high quality, legacy manual focus macro options.

First, the bad news:

There is only one dedicated AF macro lens available for the M43 system at present – the expensive Panasonic Leica-D 45mm f/2.8 OIS MFT lens which is a very nice lens with focus range limiter and allows one to image a subject size 1/4 that of a full frame film, but its lack of focus scale makes manual focus more difficult than with other macro lenses.

The Olympus Four Thirds ZD 50mm f/2.0 macro lens, although one of the sharpest lenses ever made, it will not AF on a Panasonic M43 camera, and will AF slowly on an Olympus M43 camera. This AF issue also applies to the cheaper Olympus ZD 35mm macro lens for Four Thirds.

The Olympus SRF-11 Ring Flash for Four Thirds has a FR-1 adapter for the Olympus Four Thirds ZD 50mm f/2.0 macro lens but it is 1mm too wide to attach to the Panasonic Leica-D 45mm macro lens, and is quite a large flash to use on the small M43 bodies – but you do get TTL exposure and it is a lovely ring flash with full circumferential flash unlike the Canon ring flash.

The 14-140mm lens will have difficulty with AF inside the mouth given its f/5.6 aperture (I have tried that!)

The built-in popup flash of the GH-1 is not high enough to prevent lens shadowing when the 14-140mm lens is used at focal lengths 14-20mm, or when the ZD 50mm f/2.0 macro lens is used at closer than 0.26m focal setting.

The GH-1 will not allow TTL flash with legacy lenses – seems it needs to know what the aperture is and works on the assumption aperture is ~f/2.8, furthermore flash exposure compensation with legacy lenses gives strange results – please Panasonic fix this up with a firmware update! Fortunately, you can easily set the Ring Flash to a manual output setting (you can’t do this with the built-in flash though!).

Now the good news:

1:1 macro on these cameras is HIGHER magnification than 1:1 on 35mm cameras as it gives subject size of 23mmx17mm not 36mm x 24mm.

From dpreview.com’s review of the Panasonic 45mm f/2.8 macro lens:

“On Panasonic G-series models, the 45mm becomes capable of something that’s simply not possible with any DSLR system – genuinely usable autofocus when shooting macros. These cameras allow you to choose an extremely small AF point and place it wherever you like within a large area of the frame (although not at the extreme borders). This means you can tell the camera to focus precisely where you want within your composition, and it will just do it without any fuss – it’s a very useful tool indeed.”

Most photographers who are serious about macro work do not use autofocus but use manual focus – often setting the lens to a given magnification setting (ie. a focus point), and then move the camera in or out from the subject until focus is achieved.

Autofocus is generally a challenge in macro work, particularly when the subject is not in a plane parallel to the camera, and in the low light levels inside someone’s mouth, and where there is low contrast such as on mucosa or teeth, combined with specular reflections of the light source.

Thus, the lack of AF macro lenses is not a big deal.

The absence of a mirror means you have much more efficient access to accurate manual focus and you can choose any area of the screen to magnify, plus you don’t have to worry about vibrations of the mirror and having to use mirror lock up for each shot at high magnification.

For instance, to see how easy and accurate it is to manually focus with the Olympus ZD 50mm f/2.0 macro lens on a Panasonic GH-1:

  • turn GH-1 on and set it to Manual Focus, set desired aperture/exposure mode as usual.
  • turn focus ring of the lens to closest focus
  • half-press shutter to return view to full view and then move camera in to get approximate focus
  • either press the AF button on the rear of the GH-1 and press OK button, or better still, rotate the lens focus towards more macro (and thus it won’t change the focus point as it is already at closest focus, but this will activate the magnified view function of the GH-1)
  • now magnified view is activated, move camera in or out to achieve perfect focus
  • take the shot even while in magnified  view mode if you wish – there is no mirror to drop down as with dSLRs
  • manual focus with this lens on a M43 camera is super easy and accurate, much better than on ANY dSLR I have seen.

The M43 cameras allow you to use a wider 16:9 aspect ratio which may be more applicable to cosmetic dental photography.

The EVF or LCD means that even if you stop down a lens, your viewfinder does not become dark as it would in optical dSLR viewfinders.

If you use the GH-1 on a tripod, you also have the wonderful advantage of the flip out swiveling LCD to make your life that much easier.

This means you have access to using almost every macro lens ever made with or without extension tubes or bellows or teleconverters.

For example, you can pick up an excellent Olympus OM 50mm f/3.5 macro lens on Ebay quite cheaply, and as this is a legacy lens, it has magnification markings (although you will need to double these for the 2x crop factor).

If you are going to routinely use the same magnification, then manual macro flash photography becomes a LOT easier and you could even use a Canon Ring Flash on your M43 camera in manual mode, and attach it to whichever lens you wish to use via the appropriate filter adapter – see using Canon flash on M43 cameras here.

If you have the Olympus Ring Flash, it can be used without an adapter for a lens by holding it as the lens sits inside the ring, and of course you will have TTL auto exposure, even if using legacy macro lenses (as long as you use an Olympus M43 camera as TTL on Panny’s seems to assume lens is set to f/2.8!)

The hopefully near future:

I posted a blog in August 2009 suggesting that it was time for Olympus to revamp their macro system, in particular, a faster focusing 50mm f/2.0 macro lens for Four Thirds – in fact, Olympus has announced a M43 50mm macro lens will be available in 2011 – hopefully a f/2.0 so it can be used as a portrait lens as well, and a more compact macro ring flash kit with ability to adapt onto M43 lenses.

Although neither Olympus nor Panasonic have announced a new Ring Flash for M43, I am sure it can’t be too far away, presumably it is more likely to be 2011 than 2010.

In the meantime, there are many options to consider, and the many Canon dSLR users who have adopted M43 as their 2nd camera system will be thankful that their Canon flashes can be used without modification on a M43 camera – albeit only in manual mode.

What options now for dental work using a Panasonic GH-1?

Option 1 for AF  and  TTL flash but need to hand hold the ring flash:

  • Panasonic Leica-D 45mm f/2.8 OIS ($US899 or $A1549 RRP) + Olympus Ring Flash ($A1299)
  • manual focus more difficult as no focus distance scale thus hard to preset a focus distance
  • perhaps the best macro AF system available with any camera system
  • softer corners on imaging flat surfaces as not a true flat field lens

Option 2 for MF only and TTL but no need to hand hold the ring flash:

  • Olympus ZD 50mm f/2.0 macro ($A769) + Four Thirds adapter ($A345) + FR-1 Ring Flash adapter ($A100?) + Olympus Ring flash ($A1299) +/- EC-20 2x teleconverter for 23mmx17mm subject size ($A675)
  • focus distance scale makes presetting manual focus distance easier
  • f/2.0 allows better use as a portrait lens for blurring the background
  • very sharp edge to edge image quality
  • can add the EC-20 teleconverter to give a 35mm equivalent 200mm focal length reach at f/4 light levels, and subject size 23x17mm
  • FR-1 ring flash adapter makes a very handy and effective lens hood as well as helps to protect the lens – I leave mine on!
  • can be used with full AF on Four Thirds cameras, and with slow AF on Olympus M43 cameras
  • only marginally larger than the 45mm f/2.8
  • this would probably be the best option for those who also have Four Thirds dSLRs.

Option 3 for good quality on the cheap, manual flash and hand hold the ring flash:

  • Olympus OM 50mm f/3.5 macro ($A150 Ebay) + OM-M43 adapter + Olympus ring flash ($A1299)

Option 4 for good quality on the cheap, manual flash but no need to hand hold the ring flash:

  • Olympus OM 50mm f/3.5 macro + OM-M43 adapter + Canon ring flash + 49mm ring flash adapter (or 49mm step up ring)
  • Olympus OM bellows or OM 65-116 auto tube with OM macro lenses + OM-M43 adapter
  • Nikon micro lens + Nikon F-M43 adapter ($A40)
  • Canon FD macro lens + Canon FD-M43 adapter ($A40)

NB. of course, you may find the cheaper Olympus E-P1 is adequate for your needs instead of a GH-1, in which case you will get some slow AF with the ZD 50mm macro and you will also get image stabilisation for non-flash uses, and presumably you will get TTL external flash even with legacy lenses (unlike the GH-1 but I have not tested this on the E-P1).

See also my links to macrophotography information although this article was written before Micro Four Thirds system was developed and some of my macrophotography photos (mainly taken with an Olympus E510 before I bought my GH-1)

Ring flash
Panasonic GH-1 with Olympus ZD 50mm f/2.0 macro, flash adapter and Olympus Ring Flash. The hand grip on the GH-1 is very handy here.

Finally, Metz offer a Mecablitz 15 MS-1 Slave Ring Flash which is compatible with Olympus and Panasonic Four Thirds wireless TTL, however, as no M43 camera yet has remote TTL capability you may need to resort to also using its 6 level manual output control and either an in-built or external flash to trigger it optically (I presume that is what is meant by Slave Flash with pre-flash suppression). It has adapter rings for 52, 55, 58, 62, 67, and 72mm filter threads.