[Rover]

The 85/1.8 is adaptable to E-mount, too, so what? The difference is that there's a wealth of intermediate native options for the the E mount whereas in the RF mount you either go all out (85/1.2L), adapt, or... get this Samyang. I know I probably would go the latter route, because the L is very hard to justify in comparison - over 3x the price ($2700 at B&H) for just 1/3~1/2 stop larger aperture. Yes it's probably amazing but lots of people will never afford - or justify - the L.

I stick to EF mount and I'd just get the Tamron if I feel the itch for a fast 85.