I've come to the conclusion these Zeiss lenses work excellently on the Sony Alpha cameras. I now have two of these wonderful lenses and I can't fault either of them. Both the Planar 50 f2 and the Tessar 85 f4 are very well built, focus rings are nice and smooth and don't have a long throw like a lot of the Voigtländer lenses. Both of these lenses produce stunning image quality on the A7R so assume that the quality will be the same on the A7.

These are two lenses I can certainly recommend for the A7R (and A7) and will be a part of my prime kit for those cameras. I will not be purchasing any other FE lenses (I have the kit 28-70) because these primes produce what I'm after from these cameras. I don't shoot sport and I take my time when manually focusing, although I have noticed it's much harder on these full frame sensors. I will be practicing a lot more to get proficient because I just love the look of the files. The two lenses mentioned above do not cost a fortune and are readily available with many retailers. Now I just need good 35mm and 135mm lenses and I'll be all set. I've just seen some excellent images from the Voigtländer 15 f4.5 so that will be my ultra-wide for this system. That will probably be used on the A7 because of the colour shift problems on the A7R, or it will be used on both when going for some monochrome images.

If you're wondering what you are looking at in the above image, it's water flowing over the top of a lock near where I live. You're looking down at the water from the top of the lock.