prime35mmvintage
SMC Pentax-M 85mm f/2
Pentax · 1977-1984
Pentax's compact portrait lens. The 85mm f/2 offers excellent subject separation in a remarkably small package. Sharp with beautiful bokeh. A favourite for portrait photographers.
Known for
- Portraits
- Events
- Available light
- Street portraits
Considerations
- f/2 only (no f/1.8 or f/1.4 version in M series)
- 6 aperture blades
Optical Characteristics
Sharpness (wide)4/5
Sharpness (stopped)5/5
Contrast5/5
Flare Resistance5/5
CA Control4/5
Vignetting Control4/5
Distortion Control5/5
Bokeh: Beautiful portrait blur
Rendering: Classic portrait character
Color: Warm, flattering
Common Issues
- Focus ring stiffness
- Dust in optical path
Buying Guide
Excellent portrait lens at reasonable prices. Check focus smoothness. Good value compared to faster alternatives.
Specifications
MountPentax K
Focal Length85mm
Max Aperturef/2
Min Aperturef/22
Aperture Blades6
Min Focus0.85m
Filter Size49mm
Weight251g
Optical Design
FormulaDouble Gauss
Elements5
Groups4
CoatingSMC (Pentax)
Pricing
£80 - £150
Typical used price
Mint: ~£200
Good value portrait lens
Adapts To
Sony EFujifilm XCanon RFMicro Four Thirds
Compatible Cameras
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Last verified: Jan 2026Report an error