I post this here, in the "Other Systems" forum, as I think it's a relatively important topic for those comparing systems. Interesting bit on sonyalpharumors.com. sonyalpharumors | Blog | Zeiss Biogon 28mm and 35mm lenses tested on the NEX-5 (Photozone) Read the comments, too. There are interesting layers to this. It will be interesting to see how the new bodies work out.