This lens may be usable on the A7r2, as it's not bad on the previous models. The trouble is the edges fail as you open the aperture. With some shots this is really no problem, but others..... Then too, the lens makers go to huge trouble to get these lenses working well and it's a shame to see them muted. It was the best RF 21 for the A7x, that's for sure.Has anyone tried the Voigtländer Ultron 21mm f1.8 yet? I like pictures taken with it on the A7R, but there’s a bit of vignetting going on. The A7R II seems to be better in regards to the vignetting (at least that’s what I’ve read in a few instances).
Now, the CV 15 v3 seems genuinely very good for the Sonys. The Batis 25 must be the best in that range, but I still have not seen any really good landscape samples to judge it by.