N°103471 · Family detail
KuribayashiPortrait·M42 mount·1959
Kuribayashi C.C. Petri Orikkor 50mm F/2
Specifications01
MountM42
Focal length50mm
Max aperturef/2
TypePortrait · Prime
Release year1959
Filter size49 mm
Min focus distance0.5 m
Aperture blades10
Optical elements7
Groups4
AutofocusNo
StabilizationNo
Aperture controlPreset ring + Aperture ring
Lens hoodClamp-on round with set screw
TeleconvertersNot available
EraFilm era
Production statusDiscontinued
Additional Info02
Lens TypeStandard prime lens
Summary02
50mm f/2 prime lens for M42 screw-mount cameras. Likely a general-purpose standard/portrait lens for low-to-moderate light use based on its wide f/2 aperture.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The M42 screw mount has a flange distance of 45.46 mm. A plain adapter fits a camera whose flange distance is at least 1.46 mm shorter. How lens adapters work
- Many M42 lenses close the aperture only when a pin at the rear is pressed. Use an adapter that presses the pin, or set the A/M switch to M.
- Sony EAdapter · 27.46 mm
- Canon RFAdapter · 25.46 mm
- Nikon ZAdapter · 29.46 mm
- Fujifilm XAdapter · 27.76 mm
- L-MountAdapter · 25.46 mm
- Micro Four ThirdsAdapter · 26.21 mm
- Fujifilm G (GFX)Adapter · 18.76 mm
Covers full-frame: it can vignette on a medium format sensor.
- Canon EF-MAdapter · 27.46 mm
- Canon EFAdapter · 1.46 mm
A rear element that sticks out can hit the camera mirror.
No plain adapter reaches infinity focus on: Nikon F.
Other Mounts03
No alternate mounts are indexed for this family yet.