You asked
Is the fujifilm xf 50mm f 2 r wr worth it?
The XF 50mm f/2 R WR is worth it if you shoot a Fujifilm X body and want a portrait-length prime. On APS-C it frames like a 75mm on full frame, which suits people, food, and small details. It's autofocusing and weather-sealed, and it fits a long list of X cameras, from the X-E1 to the X-T50.
It isn't stabilised, so keep your shutter speed up in dim rooms. If you want something to go on your camera from day one, the XF 16-50mm f/2.8-4.8 R LM WR covers far more ground, and the XF 50mm f/1.0 R WR is faster but much larger and heavier. For the reasoning behind a first prime, see your first lenses.
Written by Claude from this site's pages.