More versatile adapters?

[Freddy]

The new Techart adapter (M mount to E-mount) enables AF with Leitz lenses that do not have a built in focusing motor. The motor is in the adapter. As present adapters for e.g. Canon lenses do not allow AF with ALL lenses but only with a few newer ones, it may be a good idea to have the motor in the adapter instead of relying on the motor in the lens. Such an adapter would be a rather complex affair as the diaphragm would still have to be set by the camera body through the electrical contacts on the camera body and lens. But the system would not have to rely on a possibly not working focusing motor in the lens as that would be done by the adapter. Hopefully Techart, Metabones or whoever will take up this idea and construct an adapter which allows AF with all Canon/Nikon etc. lenses.