N°167753 · Family detail
RicohTelephoto·PENTAX K mount·1977
Ricoh XR Rikenon 135mm F/2.8
Specifications01
MountPENTAX K
Focal length135mm
Max aperturef/2.8
TypeTelephoto · Prime
Release year1977
Weight440 g
Filter size55 mm
Min focus distance1.5 m
Aperture blades8
Optical elements4
Groups4
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings only)
Lens hoodBuilt-in telescopic round
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeMedium telephoto prime lens
Field Notes02
Pentax K-mount telephoto prime lens with a 135mm focal length and maximum aperture of f/2.8. Intended for portraits and general telephoto use, with shallow depth of field at wider apertures.
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Other Mounts03
No alternate mounts are indexed for this family yet.