A test with my other manual focus lens, an old Pentax 50mm 1.4 Super Takumar, which had been gathering dust (not really - well protected) in a camera bag upstairs. Actually forgot I had these two.
This lens is much harder to work with, due to the focal length and the wide aperture. A really long focus throw, perhaps too loose after all these years. But when you nail it - I was focussing on her left eye - the results are very nice. The Fuji X Pro1 sensor is almost perfect for these 1950s era lenses...