Asahi Optical Co. Super 35mm f/2.0-16.0

Lens categoryWide
Vendor nameAsahi Optical Co.
Type nameSuper
Product year1966
Focal min (mm)35
Focal max (mm)35
Focus min (cm)45
Aperture max2
Aperture min16
Filter size (mm)70
Asahi Optical Co. Super 35mm f/2.0-16.0

Although officially the filter used for this version of the 35/2.0 is said to be 70mm. Everyone and anyone who had used this lens found that they just use standard 67mm filter on it. There is no explanation why Asahi / Pentax labelled the filter thread this way.

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