This review will be looking at the lens being used on a Panasonic GF2 (& GF1) and Olympus E-PL2.
DesignThe lens is well build but feels plasticky and not as sturdy. It comes with a small front lens cap that fits onto its 37mm filter. It weighs 71g
The lens protrudes out slightly when it's in shooting position.
It's a 34mm on a 2x crop Micro Four Thirds camera.
The rear lens cap doesn't cover the whole of the metal mount. There are some tiny gaps where dust might get it. I recommend getting a Panasonic MFT rear lens cap on eBay to replace it.
The lens is available in silver and black. Black lens on a black camera is stealthy.
AutofocusAutofocus speed is average, but feels faster than the Panasonic 20mm lens.
There's some operating noise when the lens is focusing which might be captured in video recording (if you have auto-focusing turned on).
SharpnessThe tests below are shot using cameras on tripod with a 2s timer.
Centre sharpness is great so let's just look at the edge sharpness.
There's slight softness at the edge that seems to improve at f/4. The softness doesn't go away at all aperture sizes but not really noticeable when looking at the photo as a whole.
Chromatic AberrationThere's some slight chromatic aberration on both camera systems not corrected totally. It gets stronger at smaller apertures, at that point it becomes noticeable.
Vignetting and distortion
There's slight vignetting at wide open f/2.8 but shouldn't be obvious in real life.
Distortion is minor and generally well corrected by the camera software.
Lens flare is quite strong with pointed to the right direction.
There are various lens hood available for the lens. This uses a 37mm filter thread. I use a 37-46mm step-up ring together with the vented lens hood that I'm using with the Panasonic 20mm f/1.7 lens.
VideoHere are some videos shot using the lens. They are 720P videos. If you visit the individual Youtube page, you can choose to view the video in a pop-out window at 100% 720P.
The lens is suitable for street shooting as it focuses fast enough. For landscape, it's also not too bad but really depends on your subject and whether the lens is wide enough to fit everything in.
Image quality pretty good, but not great especially when compared to the Panasonic 20mm f/1.7 lens. There are other issues mentioned above. I think the difference in price also reflects a bit on the quality.
However if you want a standard wide angle view, this 34mm equivalent is a very decent, small and portable.
AvailabilityYou can check out more reviews on Amazon.
17mm f/2.8 Silver (Amazon.com | Amazon.co.uk | Amazon.de | Amazon.fr | Amazon.co.jp)
17mm f/2.8 Black (Amazon.com | Amazon.co.uk | Amazon.de | Amazon.fr | Amazon.co.jp)