M22x0.5

Some small lenses mount thread. Also, a filter thread on some lenses.

Equipment and systems: Zeiss S-Planar 4/32mm lens (mount thread)
Schneider-Kreuznach Xenar/Xenon D-Mount lenses (filter thread)

Compatibility and limitations: The same lens name doesn't guarantee compatibility, since old parts weren't strictly standardized. Always measure your particular lenses directly.

Camera · Cinema / Projection