N°98134 · Family detail
CarlTelephoto·M42 mount
Carl Zeiss Jena Biotessar 165mm F/2.8
Specifications01
MountM42
Focal length165mm
Max aperturef/2.8
TypeTelephoto · Prime
Field Notes02
Carl Zeiss Jena Biotessar is a 165mm prime telephoto lens for M42 screw-mount cameras, offering a maximum aperture of f/2.8 for shallow depth of field and low-light portraits.
AI-assisted summary — verify against linked sourcesOther Mounts03
No alternate mounts are indexed for this family yet.