Features: 1. Made of high quality aluminum alloy, sturdy, durable , wear-resistant and long service life . 2. Support autofocus and anti-vibration function of the lens , allows you to get clear photos. 3. 1 or 4 inch thread at the bottom, convenient to connect with tripod and other brackets. 4. Lightweight, small and portable . Easy to assemble and disassemble. 5. Suitable for Canon EF or EF-S series mirrorless cameras with Canon EOS M mount. 6. Equipped with front and rear cover to protect the adapter . . LENS ADAPTER VILTROX EF- EOS M AF FOR OBJECTS . LENS ADAPTER VILTROX EF- EOS M AF FOR OBJECTS Specification: Material: Aluminum Alloy Black color Focus Mode : Autofocus Tripod Screw : 1 or 4 inch Compatible lens : for Canon EF or EF-S series lenses Compatible Camera: For Canon EOS M mount mirrorless camera. Maximum diameter: approx . 66mmx26mm or 2.60x1.02 inch Width: approx . mm x mm or 2.60x1.02inch List of things to pack: 1 x Adapter 1 x front cover 1 x back cover 1 x User Manual . LENS ADAPTER VILTROX EF- EOS M AF FOR OBJECTS . LENS ADAPTER VILTROX EF- EOS M AF FOR OBJECTS