This is the third one of these adaptors I have purchased, all K&F. As the first one (MD Minolta) worked fine why risk a cheaper version that may not. The second one was the classic M42 which has the most lenses available, EBAY is a source as are car boots and junk shops. The third one I have just bought is the Nikon adaptor. I have to say this one was super tight but it worked fine. It look several trips out to get the art of manual focusing but with Fuji's peak focusing system (where it highlights what's in focus) it became much easier. Use your feet as well as the focus ring. I was disappointed to start with but now I have a good chance of getting a good image in focus. The Fujinon lenses are superb of course so why bother? Well firstly making it more difficult is more satisfying when you get it right. Old lenses do have more character and are likely to produce a more artistic result. If you want the exact replication of what you are looking at then it is probably not worth the effort. It is a little like waiting for those photos to arrive by post, you may have something really special and unexpectedly good. It is not always possible to tell on the LCD screen. Have fun perhaps but don't take them to that important wedding.