7 out of 10 points and recommendedbuild, size, f2.8, center sharpness, silent AF, fisheye attachment (sold separately)distortion, corner resolution, CA
Bought as a kit with my NEX-3reviewed October 1st, 2010
From my experience:
@f2.8, center sharpness is great, which all that is needed for blurring out backgrounds and/or available light shots. In real-world practice, I've never felt like corner sharpness is a priority in these situations.
@f8-11, corners are sharpened up and the lens produces good, wide landscape shots.
While I do find the resolution issues somewhat "forgivable", I find the distortion (pincushion) a big shortcoming of this lens. My wish is that a future NEX firmware update can electronically correct the distortion, but until then, it is unpleasant to deal with.
There might be a corrective Adobe Lens profile out there, but the distortion hasn't bothered me enough to find it and post-process my images.
The bottom line: given its speed and focal length, it's a very unique kit offering. Users stepping up from P&S will find a lot to like with the wide perspective and low light capability. Personally, I've used a DSLR for years found this lens/camera combo very refreshing. But anyone who was expecting miracles from a relatively cheap kit lens was fooling themselves.
There are limitations with this lens, but it's not difficult to work around them and produce great images.