Olympus F. Zuiko Auto-S 50mm 1:1.8 (OM)

Second-hand refurbished lens with OM mount. The lens has been taken apart and each element has been cleaned. Free of scratches or fungus signs. 

Focal Length: 50mm
Aperture Range: f/1.8 - f/16
Diaphragm Type: Automatic
Diaphragm Blades: 6
Filter Diameter: 49mm
Minimum Focus: 0.45 m (17.7 in)
Mounts: Olympus OM
Elements: 6
Groups: 4