Lens: Power: 2.2x times conversion factor of your current lens setting., Optical System: Conversion type; mounts on front of existing lens., Mounting System:Screw type in front of existing camera lens into the filter accessory threads., Optics: Designed to maximize use day and night with coated optics to provide maximum image transmission with minimum distortion., Auto Focus:Utilizes camera auto focus system., Adaptability: Maintains all the camera functions plus it provides 2.2x telephoto lens conversion power. Includes lens cap, bottom cover, & pouch.