16mm improved on NEX-C3, 5N, 7?

[squirrel$$$bandit]

Corner performance is said to be quite poor on the NEX 16mm lens. I wonder if anyone here has compared performance on the 3 and 5 to performance with the new sensors--C3 I suppose is the only one out so far.

 

[sevo]

I only got one with the C3, so I can't compare. Overall I'd rate it an average performer compared to my wide APS-C zooms. But the corner performance is very, very poor compared to the 25mm equivalent primes I own (which are all medium or large format, I do not really know how bad the average 35mm or DSLR 25mm equivalent prime would be). As it was criticised for the same flaws on the old sensor bodies, I suppose the new sensor did not improve the lens significantly - but I have no first hand experience how bad it used to be...

 

[douglasf13]

This is the only evidence that I've seen that illustrates the 16mm is better, but still not great on the NEX-C3. Honestly, I bought the .75x converter, which does surprisingly little to affect IQ negatively on the 16mm, and I just crop out the extreme corners when I use this lens. It gives me about a 20mm-ish equiv., which is fine by me.

http://www.photoclubalpha.com/forum/viewtopic.php?p=58527#p58527

Even Sony's own MTFs for the 16mm aren't particularly stellar at the edges. I'm assuming that the wide zoom coming next year will be better.