Mamiya/Sekor SX Auto 21mm F/4
- Mount
- M42
- Focal Length
- 21mm
- Max Aperture
- F/4
- Type
- Wide
- Brand
- Mamiya
Mamiya/Sekor SX Auto 21mm f/4 wide-angle prime lens for M42-mount cameras, intended for wide-field landscape and general photography. Fixed maximum aperture is f/4.
Last verified: 2026-04-21