Introduced in December 2009, the GXR is an interchangeable unit camera system in which lenses can be changed by mounting camera units that integrate lens, image sensor, and image processing engine into a single unit. The new GXR Mount A12 is a lens mount unit made especially for the GXR.
Featuring an APS-C size CMOS sensor and a newly developed focal plane shutter, this unit makes it possible to mount lenses such as Leica M lenses. The lens mount unit is said to be available from September.