EF-EOSM Lens Mount Adapter allows you to place for lens(EF/EF-S) on your M(EF-M camera body). This pinned adapter allow electronic pass-through, giving the p ographer the ability to use the auto-exposure, auto-aperture and auto-focus on the lens. The lens mount adapter is precisely made from materials to the . focusing is guaranteed. Anodized aluminum construction with smooth for effortless mount. Before using this adapter, please make sure that the camera and the lens are compatible. Description: EF-EOSM is a EF mount adapter to EOSM mount autofocus adapter ring, the main function is to connect the mount, link the wire, and do not affect the performance of the camera and lens. All EOSM series cameras and most EF and full-frame half-frame lenses are supported, so please to buy. Suitable for: Lens: for EF / EF-S mount lenses. Camera: for EF- M adapter: M / M2 / M3 / M5 / M6 / M10 / M50 / M100 Model:EF-EOSM Compatible Lenses:EF series lenses Feature: Robustly built for heavy-duty use - zinc alloy dis casting core with a detachable metal stand. Prefect performance ensured-all the contact pins are copper then electroplated with gold for greatest conductivity All the parts are tight tolerance molds, which make the adapter for long time and comfortable use. Electronic auto focus.Focus infinitely.high- treatment on the contact pins,permitting perfect signal mitting between lens and camera. Support the existing function of the lens. with 1/4Inch tripod hole. Material: zinc alloy dis casting core with a detachable metal stand. Tripod Socket: Cu1/4 * 1 Max. Diameter and Length: 6.66x2.6cm/2.62x1.02in Item Weight: 188g/6.6oz Color:Black Material:Metal Package Contents: 1 * Camera lens adapter ring Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.