Metabones Leica R to Micro FourThirdsSpeed Booster ULTRA 0.71x (Black Matt)

Key Features Leica R Lens to Micro 4/3 Body Full-Frame Lens to Micro 4/3 Camera Body 0.71x Micro 4/3 Crop Factor Compensation 1-Stop Increase in Lens Apertures Description The Speed Booster Ultra 0.71x Adapter for Leica R-Mount Lens to Micro Four Thirds-Mount Camera from Metabones allows a Leica R-mount lens to be mounted onto a Micro Four Thirds-mount camera. While doing so, the adapter's optics help to maximize the connected lens's apparent angle of view while providing a 1-stop increase for the camera over the lens's aperture range. If a lens intended for 35mm film or similarly-sized full-frame camera sensors is connected to a camera with a Micro Four Thirds-sized sensor, it would project an image larger than the Micro Four Thirds sensor was built to accept. Able to capture only the center portion of the projected image, the effective angle of view of the lens would be narrowed, creating an in-camera "crop factor." The Speed Booster Ultra 0.71x Adapter for Leica R-Mount Lens to Mi