Nikon this year marks the 50th anniversary of its legendary F-mount lens-mounting system, featured on the company’s SLR cameras and NIKKOR lenses. No other camera manufacturer has been able to sustain its original lens mount for such a long period of time – making Nikon’s SLR system the most consistent range for half a century.
The Nikon F-mount was first employed on Nikon’s earliest lens-interchangeable SLR camera, the Nikon F, released in June 1959.
Nikon has consistently utilized the same mount without changing its basic structure, while other SLR camera manufacturers altered their lens mounts in response to changing technologies, such as autofocus compatibility and digitalization.
[Site: Nikon]