N°92259 · Family detail
RicohPortrait·PENTAX K mount·1977
Ricoh XR Rikenon 50mm F/1.7
Specifications01
MountPENTAX K
Focal length50mm
Max aperturef/1.7
TypePortrait · Prime
Release year1977
Weight210 g
Filter size52 mm
Min focus distance0.45 m
Aperture blades6
Optical elements6
Groups5
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings only)
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeStandard prime lens
Field Notes02
Ricoh XR Rikenon is a 50mm f/1.7 prime lens for Pentax K-mount. It’s a standard focal length option intended for general-purpose and low-light photography.
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Other Mounts03
No alternate mounts are indexed for this family yet.