Zenit-12 sd USSR 35mm SLR Film Vintage Camera KMZ Medium format camera
Viewfinder: Mirror, with a matte ring, micro-raster, Doden wedges and a non-removable pentaprism. Viewfinder field of view 20×28 mm. Lens mount: Threaded connection M42×1/45.5; or bayonet K ("Zenit-122K").