Jauns
Key Features
This Canon EF Lens to Micro Four Thirds Speed Booster S Version (MB_SPEF-m43-BM2) must use with active MFT mount carmeas, such as OMD, GH4 and BMPCC, but is not compatible with passive MFT mount cameras, e.g. BMCC 2.5K. Passive MFT camera users please choose another version called "Canon EF Lens to Micro Four Thirds Speed Booster (MB_SPEF-m43-BM1)".
Optics designed by Caldwell Photographic in the USA (patent pending)