3M-6A 500mm F/6.3
- Mount
- M42
- Focal Length
- 500mm
- Max Aperture
- F/6.3
- Type
- Telephoto
- Brand
- Unknown
3M-6A is a 500mm prime telephoto lens for the M42 mount with a maximum aperture of f/6.3, intended for distant subjects such as sports or wildlife.
Last verified: 2026-04-27