02-06-2014, 01:20 PM
I think vignetting is way too high for a $800 f2.8 lens; is this due to the lens itself or the camera ? The corner resolution I'm less sure - did you have a chance to test this on the A7; I know that it is lower resolution but it is said that the A7 actually has a better micro-lens structure than the A7r (i.e, some of the resolution loss might be due to the sensor design?). Hopefully you will have interest in doing the 50f1.8; kind of curious if it is also over the top in price or has some real value to offer.