Quote Originally Posted by rthomas View Post
Leaving out model variations and special cameras, here is a list of most Nikon 35mm SLRs:

F, F2, F3, F4, F5, F6
FM, FE, FM2/n, FE2, FA, FM3A
EM, FG, FG20
N2000, N2020, N4004/s, N5005, N6000, N6006, N8008/s
N50, N55, N60, N65, N70, N75, N80, N90/s
Nikkormat FT, FS, FTn, FT2, FT3, EL, ELw, EL2 (Nikon)

Did I miss any? That's 42. Some would say it's the answer...

EDIT: forgot the F100. So, 43. Some of these models are nearly identical, though.
And that seems to answer the OP's question!