Altin: nice shot
Jogger: they should have made a generic mount with a short flange distance and included adapters for m, nikon, canon, etc. with this approach, you need to buy a new module for each type of lens you want to put on it simply because the mount is different, the internals may be pretty much the same.
Well, a M9 has not an EVF, nor live view, so using a Nikkor on it, means you must focus just by iperfocal.
MP Burke: I thought the whole point of the GXR was that lenses were integrated with the sensors. A "module" that allows interchangeable lenses seems to go against that principle and allow dust access to the sensor. Furthermore, it doesn't solve one of the big problems of the GXR, tha lack of ultra-wide lenses. We still await a real alternative to the M9, a camera that can use Leica M lenses on a full frame sensor.
Well, this module, plus an M to Nikon or Canon or Sony or Pentax adapter, and a Sigma 8-16 mm let's go as much as wide is possible.
And surely much cheaply than to have to buy a FF sensor module.