What Nikkor lenses can one use with the F4?
A. One can use almost all Nikkor F-mount lenses with the F4. The F-mount on the F4 has a fold-back coupling pin that allows use of pre-1977 non-AI lenses with the F4. This is in addition to Nikkor AI-S, AI, and modified AI lenses, as well as all AF and AI-P Nikkors. Interestingly, the F4 is the only Nikon body other than the F3AF that can use the Nikkor AF lenses that Nikon made to use with the F3AF. These are the AF 80mm f2.8 and a AF 200mm f3.5 IF ED and the TC 16 teleconverter. Now THAT is serious backwards compatibility!” For Leonard Foo’s helpful chart of lenses compatible with the F4 body, see the Compatibility Chart on the “Photography in Malasia” website.