prime35mmdiscontinued
Olympus OM Zuiko 20mm f/2
Olympus · 1977-1990
Very rare ultra-fast ultra-wide. One of the fastest 20mm lenses ever made.
Known for
- Astrophotography
- Low light interiors
- Creative wide angle
Considerations
- Extremely rare
- Very expensive
- Some distortion
Optical Characteristics
Sharpness (wide)4/5
Sharpness (stopped)5/5
Contrast4/5
Flare Resistance3/5
CA Control3/5
Vignetting Control3/5
Distortion Control3/5
Common Issues
- Check for fungus
- Inspect aperture blades
Buying Guide
Specifications
MountOlympus OM
Focal Length20mm
Max Aperturef/2
Min Aperturef/22
Aperture Blades8
Filter Size55mm
Weight350g
Optical Design
FormulaRetrofocus
Elements11
Groups10
CoatingMulti-Coated
Pricing
£1500 - £2500
Typical used price
Mint: ~£3500
Adapts To
Sony EFujifilm XCanon RF
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Last verified: Jan 2026Report an error