I think this is one thing that I didn't realize about mirrorless cameras that I really like a LOT.
The ability to adapt 3rd party lenses, to adapt vintage lenses, and allow many more 3rd party new lenses for use.....and with focus assist, this is all possible with manual lenses.
My eyes are bad...but if even "I" can manual focus these days....anyone can.
I've got a couple mirrorless cameras, and I'm having a blast scooping up lenses and adapters to use on the various cameras.
This is really opening up amazing capabilities of each camera and it allows me to get much more use out of each lens.
More and more, I"m finding less and less need for autofocus. A lot of my photography HAS become the slower, more thoughtful process.
I dunno whether the process has moved me more to the manual lenses or vice/versa.
But unless I"m shooting something with motion, sports, concerts (precious little of those lately, granted), or candid....I find I don't need autofocus.
I'm learning zone focusing when out and about with whatever camera and once you get a feel for that, its even faster than autofocus...I set the manual lenses for the environment I'll likely be shooting in and I don't have to have any thought, I whip up the camera, quickly compose and click.
LOL...ok, I"m rapidly getting off topic on this thread...it just started me thinking.
But the main thing is, with mirrorless cameras, every manual lens I but I"m thinking of its purchase in terms for ALL of my cameras, not just one.
cayenne