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Here is a test of the 35mm cz biogen on 5n and 7; raws can be downloaded:



http://www.bmupix.com/journal/2012/1/7/nex-7-part-2-corner-performance-with-zeiss-biogon-t-35mm-f20.html





Here is an interesting comparison of camera sizes; the 24f1.8 is kind of large:



http://www.bmupix.com/display/ShowImage?imageUrl=/storage/post-images/NEX-7_GH2_Sensors_Compared-Model-Edit_S-2.jpg?__SQUARESPACE_CACHEVERSION=1314973287748