N°103603 · Family detail
Helios-81MPortrait·M42 mount
Helios-81M 53mm F/2 MC
Specifications01
MountM42
Focal length53mm
Max aperturef/2
TypePortrait · Prime
Field Notes02
Helios-81M is a 53mm prime lens with maximum aperture f/2 for manual-focus use on M42-mount cameras. It is intended for general photography, including low-light and portrait-style work.
AI-assisted summary — verify against linked sourcesOther Mounts03
This lens family is also indexed in 2 other mounts.