Expand your lens choices using the Leica R Lens to Canon EF Camera Conversion Mount from Simmod. This durable brass lens mount enables you to take advantage of your existing collection of Leica R-mount lenses when using a Canon EF or EF-S-mount camera body. Designed for precision, functionality, and durability, the converter maintains infinity focus and proper functioning between lens and camera. This mount's matte black finish helps to eliminate internal reflections. Note that this converter requires that you remove your original lens mount screws, which may void that manufacturer's warranty.