Feature: 1. Suitable Situation: Used for EOS‑R series digital mirrorless camera and for EF/EF‑S lens to connect, can achieve stable image signal transmission. 2. High Performance: Camera end and lens end mount are made of metal material, improving the reliability of use, firm and durable performance, can effectively protect the lens and camera. 3. Powerful Function: Designed with built in electronic contact, support IS anti shake function, support auto focus, as well as EXIF information transmission. 4. Full Kit: Come with a plug in ND3‑ND500 adjustable ND filter (equivalent to 1.5 to 9 gears) and a Clear filter, waterproof, dustproof, oil proof, scratch proof, easy to replace, suitable for different scenes of shooting requirements. 5. Well Made: Special sealing ring, dustproof and waterproof effect; The outer layer of the adapter ring is coated with metal frosting, which makes it hard to wear and feels fine. Specification: Item Type: Drop in Filter Mount Adapter Model: EFTR - C Material: ABS + Metal Color: As Picture Shown Application: for EF/EF-S Mount Lens Gross Weight: Approx.251g/8.9oz Focus Mode: Auto Focus Applicable models: for RF mount camera, such as for EOS-R series digital mirrorless camera for EOS R R5 R6 RP R5C C70, etc Filter: ND3-ND500 Filter, Clear Filter. Package List: 1 x Adapter Ring1 x Clear Filter1 x Front Lens Cap (Installed)1 x Rear Lens Cap (Installed)1 x Manual