prime35mmdiscontinued
SMC Pentax-A 50mm f/1.2
Pentax · 1984-1990
Ultra-fast standard lens with beautiful rendering. Highly sought after.
Known for
- Low light
- Portraits
- Creative photography
Considerations
- Soft wide open
- Heavy
- Expensive
Optical Characteristics
Sharpness (wide)3/5
Sharpness (stopped)5/5
Contrast4/5
Flare Resistance4/5
CA Control3/5
Vignetting Control3/5
Distortion Control4/5
Bokeh: Exceptional, dreamy wide open
Common Issues
- Check for fungus
- Inspect aperture blades
Buying Guide
Specifications
MountPentax K
Focal Length50mm
Max Aperturef/1.2
Min Aperturef/22
Aperture Blades8
Filter Size52mm
Weight345g
Optical Design
FormulaDouble Gauss
Elements7
Groups6
CoatingSMC (Pentax)
Pricing
£350 - £550
Typical used price
Mint: ~£750
Adapts To
Sony EFujifilm XCanon RFMicro Four Thirds
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Last verified: Jan 2026Report an error