N°110877 · Family detail
RicohTelephoto·M42 mount
Ricoh Rikenon 800mm F/8
Specifications01
MountM42
Focal length800mm
Max aperturef/8
TypeTelephoto · Prime
Weight2370 g
Filter size112 mm
Min focus distance18 m
Optical elements4
Groups4
AutofocusNo
StabilizationNo
Aperture controlPreset ring + Aperture ring
TeleconvertersNot available
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeSuper telephoto prime lens
Field Notes02
Ricoh Rikenon 800mm F/8 is a long telephoto prime lens for distant subjects. Fixed f/8 aperture; M42-mount for manual-focus use.
AI-assisted summary — verify against linked sourcesOther Mounts03
No alternate mounts are indexed for this family yet.