03-14-2012, 08:25 AM
Lloyd Chambers suggest that a thick cover glass is the problem with the NEX-7. This would concurr with what Zeis is saying about the use of certain lenses on digital (cover glass/filter interefres with edge performance of certain lenses).
http://diglloyd.com/blog/2012/20120313_2-FujiXPro1-sensor.html
http://diglloyd.com/blog/2012/20120313_2-FujiXPro1-sensor.html