Nikon S-mount
The Nikon S-mount seen as part of the 1957 Nikon SP. The distance scale is for use with lenses using the internal bayonet. | |
| Type | Internal and External Bayonet |
|---|---|
| External diameter | 36.5 mm (internal bayonet) and 49 mm (external bayonet) |
| Tabs | 3 |
| Flange | 34.85 mm |
The Nikon S-mount is a type of interchangeable lens mount used by a series of Nikon 35 mm rangefinder cameras (Nikon I, Nikon M, Nikon S, Nikon S2, Nikon SP, Nikon S3, Nikon S4). The lenses were sold under the name Nikkor.