M42-PL mount conversion adapter & Rear cap

thingiverse

This is a video about making your own camera gear, such as an adapter that converts a vintage m42 mount to an arri PL mount, and a rear lens cap. It's a simple adapter to attach a vintage lens from the M42 mount to the PL mount, but unfortunately, the inner diameter of the PL mount is only 53mm, so the number of lenses on the M42 mount where this adapter is useful is very limited. (Helios-44-2 58mm f/2, etc.) And due to the limitation of the filament material of 3D printers, durability and stability due to temperature changes are insufficient. Therefore, it may be insufficient for professional use, but I think it is useful to some extent for simple confirmation or hobby use.