Features: 650-1300mm manual-focus super telephoto lens, sturdy all-metal body, lightweight, easy to carry. Multi-coated and optuical glass element, wear-resistant, moisture-proof, anti-corrosion, pollution resistant and durable. Improved zoom-torque adjustment ring allows easily setting of zoom-tension. Circular aperture helps deliver beautiful, soft backgrounds. With this lens, you can take very close photos from long distance, perfect for wildlife, nature and sport photography, even astronomical telescopes shooting. Specifications: Material: Magnesium Aluminum Alloy+Optical Glass+Multi-layer Coating Size: Standard Size Color: Black, White(optional) Type: PK-bayonet, SN-bayonet, NK-bayonet, M4/3, CN-bayonet, E Mount, XF-bayonet (optional) Lens Construction: 8 Element in 5 Groups Aperture Range: F8.0-16(F8.0; 9.5; 11.0; 12.3; 13.5; 14.7; 16.0) Focal length: 650-1300mm Angle of View: 38-2 Minimum Focusing Distance: 5m / 16.4ft Filter Diamater: 95mm Note: Manual lens, no electronic contact, your camera will not detect the lens during installation, please switch to MFmode, so that it can be used when the display connection incorrect. Please allow 0-1cm error due to manual measurement, make sure you do not mind before you order. Please allow slight chromatic aberration due to different display resolutions. Package includes: 1x 650-1300mm F8.0-F16 Telephoto Lens 1x T2 Adapter Ring 1x Lens Bag