>>4047167This is the voigtlander 28mm ultron II, widest I have. Left is f5.6, right is f2, center vs corner sharpness.
Some smearing on the extreme corner wide open (bot right). A bit in the bot left, but that's basically on par with some of the fujicrons at f2-2.8.
It's definitely different using the OVF + MF lenses with an X-Pro. It's do-able, but a lot slower than on an M body. EVF works totally fine with adapted lenses, and OVF works great with AF lenses.