N°103013 · Family detail
Carl ZeissPrime·CONTAX mount·1933
Carl Zeiss Jena Biotar 40mm F/2
Specifications01
MountCONTAX
Focal length40mm
Max aperturef/2
TypePrime
Release year1933
Weight260 g
Filter size40.5 mm
Aperture blades11
Optical elements6
Groups4
AutofocusNo
StabilizationNo
Aperture controlDial-set aperture ring
Lens hood1281/9
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeWide-angle prime lens
Field Notes02
Carl Zeiss Jena Biotar is a 40mm prime lens for the CONTAX mount, with a maximum aperture of f/2. It’s designed for general photography, including low-light use and portraits.
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Other Mounts03
No alternate mounts are indexed for this family yet.