Introduced: ??
Optical design: ?? elements in ?? groups
Lens mount: Komura Unidapter System (Canon FL, Exakta, M42, Miranda Sensorex, Nikon F, Minolta, Ricoh Singlex, Petri, and Topcon D-1)
Covers: Full-frame (24×36mm)

More info / Review: 

http://camera-wiki.org/wiki/Sanky%C5%8D_K%C5%8Dki