M39x1 mount

A lens can be adapted with simple tube spacers when its flange distance is longer than the camera's. With 44.00 mm, M39x1 lenses can in principle go on bodies with shorter flanges such as Canon FD, Canon FL, Start, Konica AR, Konica F-mount, Four Thirds. Bodies with this mount can take lenses from longer-flange systems such as Pentax K, M42 screw mount, M37×1, Contax/Yashica (C/Y), Mamiya Z, Deckel (DKL), Braun Paxette Reflex DKL-mount, Voigtländer Vitessa T DKL-mount.