Metabones Contax Yashica to Micro Four Thirds Speed Booster ULTRA 0.71x (MB_SPCY-m43-BM3)

The Speed Booster Ultra 0.71x Adapter for Contax/Yashica-Mount Lens to Micro Four Thirds-Mount Camera from Metabones allows a Contax/Yashica-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.