Asahi Optical Co. Auto-Takumar 55mm f/1.8-22.0

Lens categoryNormal
Vendor nameAsahi Optical Co.
Type nameAuto-Takumar
Product year1958
Focal min (mm)55
Focal max (mm)55
Focus min (cm)55
Aperture max1.8
Aperture min22
Element(s)6
Filter size (mm)46
Asahi Optical Co. Auto-Takumar 55mm f/1.8-22.0

Discontinued in 1959, replaced by lens of same name but with a different mount of Full Auto Aperture. Optical construction remain the same for both version and is identical to the 55/2.0 except the glass used is of then new higher reflective indexed rare earth glass ( as indicated by the cross hatched area in the optical diagram

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