Sears Auto f2.8 28mm M42
Produced probably by Cosina Co., Ltd. Japan for Sears in late 1960s Mount M42 (Pentax/Praktica screw) Focal length 28mm Aperture range f2.8-22 auto or manual Focal range 1.5m to infinity Filter thread 58mm Elements Aperture blades 8 Weight 8.5oz (241g) A-M switch coated Overview Read More …