ASAHI PENTAX Super-Multi-Coated Takumar 28mm f3.5
m42 mount
Ø49mm
Specifications:
Focal length 28 mm
Max. aperture 3.5
Min. aperture 16
Blades 7
Min. Focus (m.) 0.4
Filter Ø (mm.) 49
Weight (gr/oz) 260/9,2
Length (mm/in) 50/2
structure 7 element 7 group
lens clean and clear . all function working well.