Name Manufacturer / Model	Mount Bayonet	Type Category	Year Released	Focal mm	Aperture f/	Weight g
Mamiya/SekorAuto 28mm F/2.8	M42	Wide	—	28mm	f/2.8	—
Mamiya/SekorZoom SX 90-230mm F/4.5 Auto	M42	Telephoto	—	90-230mm	f/4.5	—