N°108611 · Family detail
OptomaxTelephoto·M42 mount
Optomax 400mm F/6.3
Specifications01
MountM42
Focal length400mm
Max aperturef/6.3
TypeTelephoto · Prime
Field Notes02
400mm F/6.3 M42-mount telephoto lens intended for distant subjects such as sports, wildlife, and long-range portraits. Fixed maximum aperture is f/6.3.
AI-assisted summary — verify against linked sourcesOther Mounts03
No alternate mounts are indexed for this family yet.