Clear: Utilizes accurate achromatic refractor design for high peak contrast and well controlled flares, allowing you to use the lens in M manual exposure mode. Alloy 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, fine craftsmanship. Accurate: Manual focus design combined with depth of field and distance markings, facilitating the use of pre focusing techniques to achieve , clear images. 500mm f/6.3 Achromatic Refractor Telephoto Lens: Ideal for bird and wildlife photography as well as long distance shooting. Compatibility: Compatible for Nikon Z mirrorless cameras when used with the included T2 Z mount adapter. Includes a small tripod mount and a detachable lens hood, which helps to minimize lens and ghosting to the maximum extent. The rotatable tripod mount provides optimal balance and allows for quick and easy vertical format shooting.