500mm F6.3 Fixed Telephoto Lenses Astronomical Telescope Lenses with T2 SL Adapter Port

Optical Design: 4 group, 4 chip optical structure with multi layer MC coating suppresses lens spotting and double , improving contrast and color fidelity. Lens Type: A sophisticated achromatic refractor design is used to obtain images with good pk contrast and control. You can use this lens in "M" manual exposure mode. Telephoto Lens: The 500mm F6.3 zoom lens is a grt choice for bird and wildlife photography as well as distance shots. Item Type: Telephoto Lens Weight: 1751g / 61.76oz Material: Alloy, Optical Glass Lens Structure: 4 pieces 4 groups

Length: 500mm Nrest Distance: 5M Aperture: F6.3-F32 Front Filter Caliber: 86mm