[toni-a]

I am surprised nobody talked about focusing screen, normal focusing screens on DSLR when using fast lenses will show you more DOF than you would have in the final shot, and that would make it harder to focus, use any f1.4 lens, check the vewfinder and check the final picture you will see that there's more DOF in the viewfinder, so how to do manual focus with a fast lens on a DSLR wihtout changing the focus screen ???
of course with a well calibrated matte focus screen especially with split screen and microprism you can have excellent results but it needs experience and dexterity, it's so much easier on mirrorless