It is made by Solid metal mount lens adapter allows M42 mount lens to be used on Leica M camera body.
Manual focus only.
Exposure Functions available for Av mode , can also use in M mode.
Using this adapter, although the lens will fit physically, automatic diaphragm (AE metering), or any other functions are not retained using this adapter. In this case the user will need to meter in "stop-down mode" since the lens does not have the ability to have its aperture controlled by the camera body.
all M42 lens and Leica M camera
1 X M42 Lens to Leica M LM Adapter Ring