Welcome to the store! Feature: Full manual operation, manual focus, manual aperture adjustment, manual exposure with the camera body, aperture priority exposure, and infinite focus. Material: All-metal precision manufacturing, aluminum alloy ring body with fine copper bayonet (will not wear the lens), durable, and the inner wall is painted and matted to avoid reflection on the CMOS and affect image reproduction. Workmanship: The workmanship is very delicate, and it is tightly and smoothly combined with the bayonet. Material: Metal Color: As shown Package Contents: 1 x 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 to be slightly different from the real thing. The allowable measurement error is +/- 1-3 cm. Your satisfaction is our top priority. We will provide you with the best service. If you find any problems after receiving the product, such as damage, incorrect quantity, etc., please contact us immediately and we will give you the best solution!