Posted this in the Sony sub-forum but I thought I'll also post here since it is also relevant to the discussion. Forgotten to bring my wide angle lens along, so the widest I managed to test was a 35mm. As expected, no color shift was detected with that lens.
Had the opportunity to preview the Sony A7 at a pre-launch event organised by Sony Singapore and Clubsnap. Took some of my RF lens down to try out with the camera. Overall the image quality is good but I think focus peaking is still a hit and miss. I average ~50% hit rate with my RF lens in terms of focusing accuracy. This is no where near as accurate and consistent compared to focusing using the rangefinder. I guess with more practice, the hit rate will go up but if you are a wide open shooter, you'll likely be better off with a rangefinder.
Given my limited time with this camera, it has dispelled any doubts I had over it being a viable substitute to my M240. However I think it would make a suitable addition/backup to Leica M9 users looking for high ISO capabilities missing in their camera.
Some of the test images are found below. All taken @ ISO 3200, JPG, Auto-WB except for the first one which was taken at ISO 800.
Sony A7 (pre-production firmware) with Leica 35mm Summilux Asph FLE @ f/1.4 using Novoflex NEX-M adapter
Sony A7 (pre-production firmware) with Leica 50mm Noctilux E58 V1 @ f/1.0 using Novoflex NEX-M adapter
Sony A7 (pre-production firmware) with Leica 50mm Summilux Asph @ f/1.4 using Novoflex NEX-M adapter
Sony A7 (pre-production firmware) with Leica 50mm Summilux Asph @ f/1.4 using Novoflex NEX-M adapter
For rest of the photos and their full res version, please visit my
Flickr set.