Nikon FTN
1959 -World's Firsts SLR with 100% frame coverage and large-diameter bayonet mount. A system oriented, single-lens reflex (SLR) camera with interchangeable viewfinders, focusing screens and motor drive capability, and coupled to Nikon F Meter. 1968 - 1959 -World's Firsts SLR with 100% frame coverage and large-diameter bayonet mount. A system oriented, single-lens reflex (SLR) camera with interchangeable viewfinders, focusing screens and motor drive capability, and coupled to Nikon F Meter.