Metabones EF to M43 Mount Speed Booster Adapter

The Canon EF Lens to Micro Four Thirds Speed Booster (MB_SPEF-m43-BM1) is not compatible with Olympus E-M10, E-M1, E-M5 . Olympus E-M10, E-M1, E-M5 users please choose another version called "Canon EF Lens to Micro Four Thirds Speed Booster S Version (MB_SPEF-m43-BM2)". S version must use with active MFT mount carmeas, such as OMD, GH4 and BMPCC, but not for passive MFT mount cameras e.g. BMCC 2.5K.