. Features: You can use the for Nikon AI Lens To Micro 4/3 Camera Lens lock / release and stop screw It's able to for focus infinity Work with All Micro 4/3 mount camera Auto for focus (for AF) is not available Lens mount adapter only, other accessories demo in the picture is not included ATTENTION: M4/3 is different to 4/3 Lens System. Please check your Camera Specification in the Manual or Official Website of the Camera. Specification: Item Name: Lens mount adapter Material: Aluminium alloy Shape: Round Type: Extension Tubes Camera/Camcorder Fitting: for M4/3 Lens Fitting: for NIKON AI lens Outer Diameter: 5.5cm/2.17'' Inner Diameter: 3.7cm/1.46'' Color: Black+Silver Quantity: 1 Pc Note: 1.Please allow 1-3cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Package includes: 1 x Lens mount adapter (without retail package)