N°104301 · Family detail
PentaxPortrait·PENTAX K mount·1977
Pentax-M SMC 85mm F/2
Specifications01
MountPENTAX K
Focal length85mm
Max aperturef/2
TypePortrait · Telephoto · Prime
Release year1977
Weight251 g
Filter size49 mm
Physical length46 mm
Min focus distance0.85 m
Max magnification0.1299
Aperture blades6
Optical elements5
Groups4
Min aperturef/22
AutofocusNo
StabilizationNo
Aperture controlAperture ring (Manual settings only)
Lens hoodPH-R49 - Screw-type round
EraFilm era
Production statusDiscontinued
Additional Info02
ModelSMC
FormatFull-Frame
SeriesM Series Prime
Squeezenone
Lens TypeShort telephoto prime lens
Iris Blades6
Release Date1977
Data Protocolnone
Focus Zoom Rodnone
Front Diameter Mm63
Summary02
Pentax K-mount prime 85mm f/2 lens intended for portrait and low-light use. Fixed maximum aperture is f/2 for shallow depth of field.
AI-assisted summary — verify against linked sourcesWhere can this lens be adapted?
The Pentax K 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
- Pentax DA and FA J lenses have no aperture ring. Use an adapter with its own aperture control.
- Pentax DA lenses are made for APS-C.
- 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
- 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.