M42 screw mount
Various (Pentax, Zeiss, Praktica) · 1949–1980s · discontinued
| Flange focal distance | 45.46 mm |
|---|---|
| Throat diameter | not published by the manufacturer |
| Type | Slr |
| Formats | full-frame |
| Electronic contacts | No — fully mechanical |
| Third-party autofocus | None |
A screw thread rather than a bayonet, made by dozens of manufacturers. Entirely manual, dirt cheap secondhand, and the usual entry point into adapted vintage glass.
Putting other lenses on a M42 screw body
Nothing researched yet for this body.
Putting M42 screw lenses on other bodies
- M42 screw lenses on Sony E manual only