I expected near zero distortion, like the RF 50 1.8, and maybe a little extra resolution specifically when stopped down to f/2.8 or beyond. Nothing else to complain.
The promised similar optical performance to the EF 50mm f/1.2 L seems to be delivered, with very slightly more centre sharpness, exactly as I expected.
Size, weight and ergonomics seem great. Poor man's internal focusing is very highly appreciated, all these cheap lenses should be like this!
I'm happy it's not the 48.5mm patent we saw, because this probably has a wider field of view, so it's not a 50 labeled as a 45.
I don't know, I'll have to try it for myself.
I don't know if this level of image quality will please me. I didn't went with the EF 50mm f/1.2 L, years ago, I bought with the Sigma 50mm f/1.4 Art instead because it was sharper, but I also don't use R5s so, I have to try it.
I'm looking forward to handle this lens.
I wouldn't buy EF glass at this point, unless I needed something specific that I couldn't afford on RF, like a supertelephoto prime.
EF glass is being discontinued, needs the adapter, and this will be serviceable for much longer.
I bet a lot of EF 50mm f/1.2s will appear now for sale, because owners will probably be able to replace it with this for free or even with some extra cash in their pockets, while removing the adapter.