Feature: 1. For Pentax PK mount lens can be mounted on for Canon RF mount camera body through the PK‑RF adapter ring. 2. Made of high quality alloy, easy to install and remove, which will not damage the camera body and lens. 3. The surface is painted to prevent oxidation and corrosion, and feel comfortable. 4. Precise processing, tight fitting, precise fitting and no light leakage. 5. Extinction treatment on the inner side to avoid reflections affecting imaging. Suitable for Canon EOS R/PR/R5/R6 Camera. Specification: Item Type: Lens Adapter Material: Alloy Color: As Pictures Shown Weight: Approx. 88g/3.1oz Type: Full manual adapter ring Mount: PK Mount, RF Mount Compatible lens: for Pentax PK mount lens Applicable camera: for Canon RF mount camera body, for example, Fit for Canon EOSR/PR/R5/R6 camera How to use: 1. Align the identification point of the lens mount with the identification point of the adapter ring and rotate it clockwise. When you hear a "click" sound, it means the lens has been installed in place2. Align the identification point on the lens adapter ring with the adapter ring to the identification point on the fuselage, and rotate clockwise when you hear a "click" sound, it means it is installed in place 3. Press and hold the camera lens release button and rotate it counterclockwise to remove the lens together with the adapter ring 4. Push the adapter ring release button and rotate it counterclockwise, the adapter ringcan be removed from the lens. Package List: 1 x Lens Adapter