Selling to organize my collection. Leica M2 21-35 M3 135 LM Ring Bright Frame 35mm/135mm Compatible Leica Mount Adapter L-Mount to M-Mount. This is a mount adapter that converts L-mount lenses to M-mount. It's a mount adapter from the time of the Leica M2/M3, marked M2 21-35 M3 135. The bright frame supports 35mm and 135mm frames. It can be attached to cameras and lenses. Please consider this as a current condition item. Please have it serviced by the buyer if necessary. Please refrain from purchasing if you are overly concerned about condition.