ricleo
Senior Member
RF lenses still shows some light magenta cast over A7 worst in A7r that's why with A7/x I think the best wide lenses are non-RF lens but the down side is the lens size :-( .. I have 21mm F4 Leica-R no issued with the cast the main issue I have is the vignetting...
you should really give the SEL10-18 a serious look then. no color casts on the a7/r and almost as wide as the CV12mm. Only downside is more distortion near the edges, but is correctable quite easily in adobe CS/LR. saw my samples one/two pages before? no distortion correction done on those images (didn't really need any) apart from the MBS shot.
usable from 12-16mm with no modification needed. If you remove the 3 screws on the back and remove the rear lens baffle, no vignetting even from 16-18mm. A very useful lens on full frame from 12-18mm.