People have complained about Voigtlander lenses with the NEX7. The 7 needs a retrofocus design with a wide angle lens and the V lenses are mainly designed for rangefinders which do not require retrofocus. What you get is softness and dark corners with false color, pink on one side and green on the other. There is a software called Cornerfix which combined with something like Photoshop can make corrections. Will not get sharp corners though. Luminous Landscape did a very good demonstration of that in their review of the NEX 7. So the choices are get a NEX without the 24MP and use a V. wide angle; NEX7 with a retrofocus WA like an SLR lens; NeX7 and V. WA and do post processing to correct things.