>>3962840Shows as f/1 for me. Although it's a bit sus that the full name of the lens isn't in the vendor specific section. I don't have the 50mm f/1 myself, but all my shots spell out the full name of the lens, e.g. "Fujifilm Fujinon XF35mmF1.4 R".
If I were OP I wouldn't jump straight on the 50mm f/1. The 50-140mm f/2.8 costs about the same but covers all the classic portrait focal lengths, all in one lens. Probably higher availability on the used market, and he can get it with the expectation of selling it and replacing with faster primes later on.