N°431335 · Family detail
RicohZoom·M42 mount
Ricoh Auto Rikenon 70-230mm F/4.5
Specifications01
MountM42
Focal length70-230mm
Max aperturef/4.5
TypeZoom
Weight1300 g
Filter size67 mm
Min focus distance2.5 m
Aperture blades6
Optical elements13
Groups8
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings only)
TeleconvertersNot available
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeTelephoto zoom lens
Field Notes02
Ricoh Auto Rikenon is a 70–230mm F/4.5 zoom lens for the M42 mount. It’s suitable for general telephoto use such as portraits and distant subjects.
AI-assisted summary — verify against linked sourcesOther Mounts03
No alternate mounts are indexed for this family yet.