Feature: 1. Superior Optical Design: The lens features a 4 group 4 pieces optical structure with multi layer MC coating, effectively suppressing lens flares and ghosting to enhance contrast and color accuracy. 2. Chromatic Aberration Free Refractive Lens: Designed with high accuracy, the lens delivers images with high peak contrast and excellent control over flaring. It can be used in "M" manual exposure mode for optimal performance. 3. 500mm F/6.3 Telephoto Lens: The 500mm f/6.3 lens is an excellent choice for bird and wildlife photography, as well as long distance shooting. It offers exceptional image quality with reduced chromatic aberration. Compatible with M mount mirrorless cameras with the included T2 EOSM adapter. 4. Solid Physical Design: Includes a tripod mount and detachable lens hood to minimize lens flares and ghosting. The rotatable tripod collar provides optimal balance and enables quick and easy vertical format shooting. 5. Precise Calibration: Designed for manual focusing, the lens incorporates depth of field and distance scales, allowing for the use of pre focusing techniques to achieve clear images. The premium alloy construction ensures a strong build quality and exquisite appearance. Specification: Item Type: Fixed Focus Telephoto Lens Material: Alloy, optical glass Weight: Approx. 1700g/60.0oz Lens Structure: 4 pieces and 4 groups Focal Length: 500mm/19.7in Nearest Focusing Distance: 5M Aperture: F6.3 to F32 Front Filter Diameter: 86mm/3.4in. Package List: 1 x Fixed Focus Telephoto Lens2 x Lens Cap 1 x Lens Adapter Ring 1 x Wrench 1 x Storage Bag 1 x Specification