OM-Nikon1 For Olympus OM Lens to Nikon 1 Mount Camera Adapter...open to offers and trades. From Wikipedia, the free encyclopedia Nikon 1-mount Type Bayonet External diameter 40 mm[1] Tabs 3 Flange 17 mm[1] Connectors 12 electrical pins Introduced 2011 Discontinued 2018 The Nikon 1-mount is a type of interchangeable lens mount developed by Nikon for its Nikon CX format mirrorless interchangeable-lens cameras. The 1-mount was first introduced on the Nikon 1 series in 2011, and features a bayonet mount.
