Auto Mamiya/Sekor SX 21mm F/4
- Mount
- M42
- Focal Length
- 21mm
- Max Aperture
- F/4
- Type
- Wide
- Brand
- Mamiya
Auto Mamiya/Sekor SX 21mm F/4 is a 21mm prime wide-angle lens for M42 mount, intended for wide-area landscape and general photography. It uses a fixed maximum aperture of f/4.
Last verified: 2026-04-27