Viltrox EF-E II SpeedBooster Lens Adapter for Canon Lens to Sony

Viltrox EF-E II CD PD Auto Focus Reducer Speed Booster Lens Adapter for Canon EOS EF Lens to Sony Camera Feature The focal length is multiplied by 0.71 on the original basis (equivalent focal length = actual focal length x 0.71) Enlarge the 3 level aperture Built in 4 groups and 4 pieces Optical lens Auto focus EXIF signal transmission Two model of focus : contrast and phase focus mode Firmware update via USB port Upgraded Function than EF-E 1 Two Auto Focus model : a) PDAF(phase detection auto focus): Focus speed is faster. b) CDAF (contrast detection auto focus):Focus success rate is higher 2 Enlarge the 3 level aperture 3 Firmware upgrade can be operated via the USB port 4 Support more Canon lenses and Sony E mount cameras Notice: 1) You need to set Auto focus model before install adapter in camera. 2) If you want to change Auto focus model , you need to tear down adapter , slide button to you want auto focus model , then install it again. Suitable for: Compatible lens: Canon EF series lens (include TamronSigma,TokinaZeiss etc EF mount lens), don't suit for EF-S lens. Compatible camera and camcorder E-mount full frame camera A9,A7RIII, A7RII, A7SII, A7II, A7S, A7R, A7,A7M, A7MII E-mount APS-C frame camera A6500A6300, A6000, A5100, A5000, A3000,QX1, NEX-7, NEX-6,NEX-5, NEX-5N, NEX-5R, NEX-5T, NEX-3, NEX-C3, NEX-F3,NEX-3N E-mount camcorder NEX-VG30, NEX-EA50,NEX-VG900,NEX-FS700,NEX-FS100,NEX-VG10,NEX-VG20 Package List: 1 x Viltrox EF-E mount f/Booster 1 x Tripod Mount Knob 1 x Front Cover 1 x Rear Cover