The Fujica X-mount was a lens mount created by Fujifilm in the late 1970s and early 1980s for the new Fujica SLR lineup: AX-1, AX-3, AX-5, AX Multi, STX-1, STX-1N, STX-2, MPF105X, MPF105XN.
The mount is a bayonet type, with a 65° clockwise lock, and a flange focal distance of 43.5 mm.
[1] With the advent of autofocus, the Fujica series of 35 mm SLR cameras was discontinued in 1985, rendering this mount obsolete.
[2] Fuji would return to the SLR market in 2000 with a series of digital SLR cameras starting with the FinePix S1 Pro, but these were based on Nikon designs and used the autofocus version of the Nikon F-mount.
Not on that list are the following lenses: The Fujinar lenses are: The "no-DM" lens cannot be used for program and shutter priority exposure modes of the AX-5 SLR; aperture priority and manual mode will work.