The M-Adapter-T from Leica enables you to mount any Leica M lens on the Leica T camera. It features a sensor for 6-bit coded Leica M lenses to provide exposure metering, aperture priority AE, and manual setting capability with those lenses. This sensor will communicate all of the metadata from 6-bit coded lenses to the camera. Additionally, the M-Adapter-T can be combined with the optional R-Adapter to allow for the mounting of R lenses.