You asked
Is the fujifilm xf 16mm f 1 4 r wr worth it?
The XF 16mm f/1.4 is worth it if you want a wide, fast prime for dim rooms, night scenes, or close subjects with soft backgrounds. On APS-C it frames like a 24mm on full frame, and f/1.4 gives about the depth of field of f/2.1. It isn't stabilised, so you'll rely on faster shutter speeds in low light.
If you mainly shoot people, I'd skip it. A fast standard prime suits that better. The lenses guide suggests a 33-35mm f/1.4 to f/1.8 on APS-C, and the portraits guide covers the same ground.
If you want wide but slower, the XF 16mm f/2.8 is the simpler option. The XF 8-16mm f/2.8 gives you a range of wide angles in one zoom. For the choice between them, the sensor sizes guide is a good read, since it argues that lenses and light matter more than the last bit of sensor performance.
Written by Claude from this site's pages.