VILTROX EF-E II 0.71x Auto Focus Reducer Speed Booster Adapter for Canon EF to Sony E-Mount Camera a9 a7r iii a7r ii a7iii a7s a6500 a6300

New Viltrox EF-E II mount f/Booster for Canon EOS EF mount lens to Sony NEX E Mount Adapter Supports auto focus function Suitable for APS-C camera, 0.71x magnification, +1 f/stop Same function as Metabones Speed Booster Detail Information Viltrox f/Booster series can allow most of the lens to be used E-mount camera bodies mostly Sony's. Thanks to the built-in optical lens (4 elements / 4 groups), it can increase the aperture by one f/stop and extend the focal length. Allowing you to get in the larger area of light and achieve the depth of field that you prefer. EF-E (the one used for Canon EF lens) is Auto Focus which can't be retained in the other models in this series. Viltrox f/Booster are quality made using precision-machined aluminium alloy with chromium plating on both of the camera body and the lens side of the booster to ensure smooth and endurable mounting, quality aesthetic. With optical lens provided by our Japanese partner and a surprisingly attractive price, it is surely a smart choice to choose Viltrox f/Booster. It can be upgraded by USB port. Usage of Focus Mode Switch ( PDAF&CDAF ): 1. Before using, please confirm the focus mode of the lens mount adapter, and then attach it on the camera. 2. If you need to change the focus mode, please take the adapter ring off, slide the focus mode switch, and attach it on the camera then. Specifications: Lens mount: Canon EF lens Magnification: 0.71x Aperture: to be increased by one f/stop Tripod mount: removable Optical construction: 4 elements / 4 groups

• VILTROX EF-EII is designed to cover an APS-C image circle which is not big enough to cover a full-size 36mm x 24mm sensor. On a full frame camera body (A7 series, NEX-VG900) the camera needs to have "APS-C/Super 35mm" set to either "Auto" or "On".
• Support Auto Focus, including CDAF and PDAF.
• 0.71x multiply the original focal length, which help to accelerate focusing speed by 50%.
• Built-in 4 groups 4 glasses optical glass, aperture is increased by 3 stops, so you can better distinguish the main object and blur out background.
• Gold-plated copper contact enhance EXIF signal transmission; Support USB upgrade for sustainable usage. Made of CNC precision constructed aluminum.