You asked
How sharp is the fujifilm gf 250mm f 4 r lm ois wr?
I don't have test results or sharpness measurements for this lens, so I can't say how sharp it is. What I can tell you is what it is. It's a 250mm f/4 prime for Fujifilm's medium format (44 x 33) GFX bodies, with image stabilisation and autofocus. On those cameras it frames about like 198mm on full frame, and f/4 gives roughly the depth of field of f/3.2.
If you want to judge its sharpness, look for independent lens tests and sample images, since the site doesn't cover that. The Fujifilm GF 250mm f/4 R LM OIS WR page has the full spec list and the GFX bodies it fits. If you tell me what you plan to shoot, I can suggest which lens on this list suits it best.
Written by Claude from this site's pages.