You asked
What is the ttartisan m 50mm f 0 95 asph good for?
The TTArtisan M 50mm f/0.95 ASPH is a fixed 50mm prime for full frame, with a very wide maximum aperture. It's manual focus only, with no stabilisation, and it mounts on Leica M bodies. Its job is low light and shallow depth of field. A fast 50mm like this gathers far more light than any kit zoom, which is why I'd reach for it for people, food, and dim interiors. You can see the full list of bodies it fits on its catalogue page. A recent body such as the Leica M11 or the Leica M10 is a sensible pairing. If you're weighing it against a cheaper standard prime, the lenses guide explains the trade-off.
Written by Claude from this site's pages.