Item Type: Manual Focus Telephoto Lens Material: Alloy, Optical Glass Weight: Approx. 1713g / 60.42oz Lens Structure: 4 Elements and 4 Groups Focal Length: 500mm / 19.7in Minimum Focus Distance: 3m / 9.8ft Aperture: F6.3-F32 Front Filter Diameter: 86mm / 3.4in Package List 1 x Manual Focus Telephoto Lens 2 x Lens Cap 1 x Adapter Ring 1 x Wrench 1 x Carrying Bag 1 x User Manual 1Compatibility: Compatible for mirrorless cameras with NX mount when used with the included T2 NX mount adapter. Includes a small tripod mount and a detachable lens hood, which helps to minimize lens glare and ghosting to the maximum extent. The rotatable tripod mount provides optimal balance and allows for quick and easy vertical format shooting. 2Alloy and Optical Glass: 4 group 4 elements optical structure with multi coated coating to suppress lens flare and ghosting, enhancing contrast and color accuracy. Alloy body, strong texture, exquisite appearance. 3Accurate: Manual focus design combined with depth of field and distance markings, facilitating the use of pre focusing techniques to achieve sharp, clear images. 4Clear Image: Utilizes accurate achromatic refractor design for high peak contrast and well controlled flares, allowing you to use the lens in M manual exposure mode. 5500mm f/6.3 Achromatic Refractor Telephoto Lens: Perfect for wild or nature photography, used for small or long distance objects such as birds or wild animals, airplanes, etc.