Camera Lens Bayonet Mount Ring Repair Parts for EF Lens Camera Repairing Accessory Mount Ring Lens Bayonet Mount Ring Bayonet Mount Ring Professional Installation-: Lens Bayonet Mount Ring is recommended that the installation and disassembly be carried out by professional maintenance personnel. Accurate Size-: The for Shape and size of this bayonet mount ring is precisely designed to fit the original camera size perfectly, and it will work properly when installed correctly. Applicable - Camera lens bayonet mount ring is brand new and is an ideal replacement for EF 24 to 70mm F2.8 24 to 105mm 16 to 35mm 17 to 40mm lens. Manufactured with original camera model data, please confirm the camera model match before purchasing. Specification: Item Type: Camera Lens Bayonet Mount Ring Product Material: Metal Color: As Pictures Shown Weight: Approx. 34g / 1.2oz Application: for EF 24-70mm F2.8 24-105mm 16-35mm 17-40mm Lens packing list: 1 x Replacement Lens Mount Ring