Would someone please advise me regarding following dilemma: I was hell bent to purchase a Sony A7r until I read and reread all about this camera on this and other forum. Main reason was to use Leica and Zeiss M mount lenses (Leica 2.8/28, 2/35, ZM 2/50 Summarit 2.5/75.) using Novoflex adapter, as well as some older Nikkor lenses. I would be using A7r mainly for landscape and nature photography, I do not mine to use tripod at times, but not always as number of users and reviews suggested should be use. I am now considering getting an A7. My question is how much in a way of quality in a large print say 16 x 20 inch I would be sacrificing compering same size print from a A7r. All suggestions and advice greatly appreciated. Vladimir.