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.
The F-mount adapter FT1 enables the use of all F-mount lenses, especially with integrated autofocus motor. The FT1 adapter mounts and meters with all AI-P, AF, AF-S, D, and G lenses and compatibles providing autofocus with all lenses with integrated autofocus motor. It further mounts Pre-AI, AI, AI-S, and E lenses without metering as well as lenses that jut out the F-mount (needing mirror lock-up on cameras with mirror). Also not recommended, it is used with teleconverters for extreme telephotos.