You asked
Fujifilm xf 50mm f 2 r wr vs 7artisans af 50mm f 1 8 aps c?
The Fujifilm XF 50mm f/2 R WR is the better pick if you shoot Fujifilm X and want weather sealing. Its "WR" name is the clue. It frames like 75mm on APS-C, and f/2 gives about the depth of field of f/3 there.
The 7Artisans AF 50mm f/1.8 is the one to choose if you own a Sony E, Fujifilm X, or Nikon Z body. It also gives you the wider f/1.8 aperture, which means about the depth of field of f/2.7 on APS-C, so you get softer backgrounds and more light for the same money as a Fuji mount.
Both are autofocus primes with no stabilisation. For people, my view is that a 50mm f/1.8 is the lens to start with, as laid out on the portraits page.
Written by Claude from this site's pages.