January 10th, 2012

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Micro Four Thirds cameras gets a couple of new Sigma lenses and a few Panasonic converter lenses

Tuesday, January 10th, 2012

Panasonic announced several new converter lenses for their 14mm f/2.8 and X 14-42mm lenses:

  • DMW-GWC1 Wide Conversion Lens – converts 14mm to 11mm for use on 14mm f/2.5 and the LUMIX G X VARIO PZ 14-42mm
  • DMW-GTC1 Tele Conversion Lens – 2x zoom – converts 42mm to 84mm for use on the LUMIX G X VARIO PZ 14-42mm
  • DMW-GMC1 Macro Conversion Lens – for use on 14mm f/2.5 and the LUMIX G X VARIO PZ 14-42mm
  • DMW-GFC1 Fisheye Conversion Lens – for use on 14mm f/2.5 and the LUMIX G X VARIO PZ 14-42mm

Sigma have announced two new lenses for Micro Four Thirds and Sony NEX mirrorless systems:

  • Sigma 19mm f/2.8 EX DN aspherical which will give 38mm FOV on MFT and 28.5mm FOV on NEX
  • Sigma 30mm f/2.8 EX DN aspherical which will give 60mm FOV on MFT and 45mm FOV on NEX

Neither of these are particularly wide aperture but presumably Sigma is targetting high optical image quality rather than pancake size or fast aperture.

I am not sure how these will go in a market of 17mm f/2.8 pancake, 20mm f/1.7 pancake, and 25mm f/1.4 high image quality Micro Four Thirds lenses which are already available. Perhaps they are largely targetting the relatively weak Sony NEX lens line up.

Canon introduce a large sensor compact fixed lens camera – the Powershot G1X – but is this what upgraders really want?

Tuesday, January 10th, 2012

Canon have just announced the Powershot G1X “compact” camera with a 14mp 18.7mm x 14mm sensor about the same size as Micro Four Thirds (its active region may actually be smaller than that on a Panasonic GH1 or GH2)  and in 4/3 aspect ratio but with a fixed 28-112mm equivalent f/2.8-5.8 image stabilised zoom lens.

It has some nice features including:

  • the large sensor and 14bit RAW capture for high image quality
  • metal construction
  • compact lens about the same size as the Panasonic Lumix X 14-42mm F3.5-5.6 OIS powerzoom but with more telephoto reach.
  • 4 stop image stabiliser
  • flip out, swivel, hi-resolution (920,o00 dots) LCD screen
  • built-in flash with sync speed up to 1/2000th sec – nice but this flash is very limited with its low power output.
  • hotshoe compatible with all Canon EOS speedlights with sync speed 1/250th sec – now that is nice
  • face detection flash exposure compensation
  • SD/SDHC/SDXC memory card support
  • optical viewfinder but not through the lens viewing, but at least there is no black out during burst shots as with EVF.
  • built-in 3 stop ND filter so you can “use wider apertures” but it doesn’t have wider apertures at the portrait end!
  • HDR mode

Canon seem to have totally misunderstood the market with this camera.

It is relatively tall (117mm x 81mm x 65mm) for a compact, and heavy for a compact (534g) and ugly!

Those upgrading from a point and shoot not only want higher image quality but they want much better ability to blur the background than this camera can ever offer, and at $799, most people would be far better off buying a similarly priced and sized, but much more versatile Micro Four Thirds camera with which they can buy nice wide aperture lenses to blur the background with.

So here are a few deficiencies compared with a Micro Four Thirds camera:

  • you can’t change lenses so you will never be able to blur the background nicely as you can’t put a nice 45mm f/1.8 portrait lens  or  use  lovely legacy lenses such as the Rokinon 85mm f/1.4
  • you can’t use a wide angle or long telephoto lens
  • you can’t use a dedicated macro lens – although it has macro mode, it is only down to 20cm
  • it does not have an EVF so you cannot see through the lens with the camera at eye level which means you don’t get to see the effects of ND gradient filters, polariser filters or composing to a different image aspect ratio, or the many other nice features of EVF’s such as magnified manual focus, etc.
  • the LCD screen is not a touch screen
  • burst mode at 4.5fps is limited to 6 shots, to get more you have to reduce burst rate to a miserly 1.9fps
  • exposure compensation is only +/- 3EV not 5EV
  • HD video is limited to 24fps when using 1080i while 720p is only 30fps instead of 60fps and thus slow motion video is not possible
  • it appears there is no manual exposure movie mode?
  • it will be interesting to see how fast the AF is, will it be as fast as the latest Micro Four Thirds cameras which have the fastest AF for static subjects you can get?
  • no zoom ring on the lens, you only have the power zoom lever near the shutter button
  • you need to buy a lens adapter (FA-DC58C  with 58mm thread) to allow use of a polarising filter- what were they thinking?

Well, it is has a much larger sensor (6.3x larger) than its predecessors, the Powershot G12 and earlier, but in this new marketplace of mirrorless interchangeable lens compact cameras at similar price point and size it is most likely aimed at those with a Canon dSLR who want a compatible compact. Even those will be waiting for Canon to come out with their mirrorless system which will presumably have this same sensor.

If this camera had a wider aperture lens, then the high ISO capabilities, built-in ND filter, nice fast flash sync would make this a great camera but to me, the lens lets this camera down.

The first thing I do when I buy a camera is replace the kit lens with a wide aperture lens – you can’t do this with this camera.

Still it may suit some people and I am sure it will take great photos just as a Micro Four Thirds camera will do with its kit lens.

This presumably suggests Canon’s new mirrorless range will be based around this sensor, and if this is so, wouldn’t it be fantastic for everyone if they actually did something sensible and use the Micro Four Thirds lens mount technology so that they have a ready market for their lenses and cameras. Heck they could even negotiate with Olympus and Panasonic to create a unified hotshoe given they are almost pin compatible at present.

Micro Four Thirds users would then have the option of Canon sensor, TTL flash and lens technologies while Canon users would gain access to the lovely collection of micro Four Thirds lenses already available.

Guess I am just dreaming again.

Fujifilm announce a new high end mirrorless camera system with a new sensor design

Tuesday, January 10th, 2012

The long awaited announcement from Fujifilm has finally arrived.

Their take on a mirrorless camera system is clearly targeting the enthusiast photographer who does not care for taking movies nor need zoom lenses, but who want high quality images using wide aperture prime lenses.

See here for details.

In short, it is based upon a new APS-C sized “X-Trans” sensor which has a new pixel array instead of usual Bayer pattern, and no anti-alias filter which should mean it can capture more detail than comparable traditional sensors with anti-alias filters.

The 1st camera, the X-Pro1 is expected to retail at $1600 body only and there are only 3 prime lenses available, each expected to cost $600-700.

The hybrid optical/EVF viewfinder is designed to change optical magnification to suit each of these 3 lenses, so I would not be expecting a big range of lenses.

That said, their traditional film era choice of lenses may well be adequate for the target audience (in 35mm terms):

  • 27mm field of view at f/2.0
  • 53mm field of view at f/1.4
  • 90mm field of view portrait/macro lens at f/2.4

Clearly they have done their homework on lens choice given the popularity of the following Micro Four Thirds lenses:

  • 12mm f/2.0 = 24mm
  • 20mm f/1.7 = 40mm
  • 25mm f/1.4 = 50mm
  • 45mm f/1.8 = 90mm
  • 45mm f/2.8 OIS macro = 90mm macro

However, personally I would have preferred the following range in 35mm terms:

  • 24mm at f/2.0
  • 35mm at f/1.8
  • 50mm at f/1.4
  • 90mm at f/2.0 with macro
  • 150mm at f/2.0 with OIS
  • 250mm at f/4 with OIS

I presume the optical viewfinder technology may be the limiting factor in providing such a range of lenses.

The Users Manual can be downloaded from Fuji here (pdf).

A few more features:

  • 16mp APS-C sized sensor with no anti-alias filter
  • SD/SDHC/SDXC memory card support
  • only +/- 2EV exposure compensation
  • auto switching between OVF and LCF screen via eye detection as with Panasonic GH series
  • manual switch on front right to switc between OVF and EVF and set the OVF zoom
  • aperture ring on lenses with Auto selection as well
  • for Programmed Exposure Mode, there is no P mode but you set both Shutter dial and Aperture dial to A (but only allows speeds 1/4000th sec – 1/4 sec) – makes good sense
  • all shutter speeds (1/4000th sec to 1 sec ) are selected and visible from the top dial – makes street shooting much easier, for Aperture Priority, set this to A for auto shutter speed
  • for Manual Exposure mode, just chose shutter speed and aperture that is not A
  • for timed long exposures 2-30 sec, set shutter dial to T then use EVF with menu buttons to select actual exposure
  • for Bulb long exposures, set shutter dial to B -can take up to 60 minute exposures but if you set aperture to A, the exposure will be set to 30 sec
  • the shutter button even has a traditional screw in shutter release cable facility – one of the few digital cameras to have this – very nice and retro indeed!
  • exposure compensation is via it’s own top mounted dial and clearly marked – again great for the street shooter or tripod user
  • Macro mode on the rear buttons automatically changes OVF to EVF to avoid parallax error – seems strange to bother, as the type of user for this camera would know to do this anyway!
  • burst mode 6fps or 3fps
  • 2 exposure multiple exposure mode
  • panoramic stitching mode
  • self-timer activated via menu system  or allocated to the Fn button
  • viewfinder displays focus distance as this is not visible on the lenses – perhaps the biggest let down for the street photographer!
  • does not appear to be any manual focus aids other than a single zoom magnified focus enabled by pressing the centre of the command dial
  • ISO 100-25,600 although only 200- 6,400 in RAW mode and Auto but no intelligent ISO as with Panasonic cameras which assesses degree of subject movement
  • 10 film simulation modes including B&W with either Y,R or G filter, and a sepia mode
  • flash sync 1/180th sec, PC-sync terminal as well as hotshoe, no built-in flash, no remote TTL flash, no HSS flash?
  • 1080 and 720 24fps HD video, stereo mic, C-AF, 3x zoom some manual controls but perhaps not shutter speed selection?
  • weght 450g incl. battery and memory card
  • size 140mm x 82mm x 43mm – certainly not as small as the Olympus Pen or Sony NEX cameras

Potentially this is a great camera for many enthusiasts who want high image quality, want to use prime lenses only and only in this range, and who want to be able to see at a glance what aperture, shutter speed or exposure compensation they have selected by looking down on the camera. The hybrid OVF/EVF certainly appears to be a very attractive feature but will it be enough to overcome the camera’s other limitations?

Unfortunately for its high price, it lacks the versatility of the Micro Four Thirds system, and the enthusiasts will not be so happy with its lack of manual focus or focus indication functionality, nor its poor exposure compensation range.

Perhaps they should do a deal with Olympus and get in-body image stabilisation, sensor dust removal system, Super-FP HSS flash and remote TTL flash all of which are absent in this camera!

At its price point I would have hoped for a faster flash sync and potentially compatibility with a major brand’s remote TTL flash system such as Nikon, Canon or Olympus.

The HD video capabilities are reasonable but much more limiting than with other mirrorless cameras.