Specification Brand : LenTLy BulletPoint1 : 500mm F/6.3 Achromatic Refraction Telephoto Lens: 500mm F/6.3 ultra long zoom lens is a good choice for bird and wildlife photography and ultra long distance photography. BulletPoint2 : Exquisite Workmanship: The 500mm F6.3 prime telephoto lens has alloy body which has a strong texture, exquisite appearance, and exquisite craftsmanship. BulletPoint3 : Lens Type: The 500mm F6.3 telephoto lens adopts a precise achromatic refractor design, which can obtain images with good peak contrast and flare control. You can use this lens in the M manual exposure mode. BulletPoint4 : Physical Design: It also includes a tripod bracket and a removable lens hood to help minimize lens and ghosting. The rotatable tripod holder provides optimal balance and allows for quick and easy vertical format shooting during rotation. BulletPoint5 : Compatibility: When used in conjunction with the included T2 PK mount adapter , 500mm F6.3 prime telephoto lens is suitable for DSLR camera KA mount lens. BulletPoint6 : Compatible with in body shake reduction of the K series DSLR cameras. The Pentax digital SLR camera K series is equipped with in-body shake reduction SR / SR II. Any lens compatible with the K-series camera can benefit from image stabilization Color : Black CompatibleMountings : Pentax K Configuration : w/ 16-50mm F2.8ED Zoom Lens ExternallyAssignedProductIdentifier : 7547872258199 FocalLengthDescription : 500 mm FocusType : Manual Focus IncludedComponents : Lens, Lens Shade, Pouch, Rings ItemName : 500mm F6.3 Prime Telephoto Lens, 500mm F6.3 Manual Telephoto Lens Manual Focus Multi Layer Coating Accurate Calibration for Long Distance Photography (Black) ItemPackageDimensions_Height : 14 centimeters ItemPackageDimensions_Length : 46 centimeters ItemPackageDimensions_Width : 15 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : slr-camera-lenses LensDesign : Prime Manufacturer : LenTLy MaxAperture : 8 f_stop MaxFocalLength : 500 millimeters MinAperture : 2.8 millimeters MinFocalLength : 500 millimeters ModelName : LenTLyzvr3ogih5c-11 ModelNumber : LenTLyzvr3ogih5c-11 MountingType : Screw on NumberOfItems : 1 OpticalZoom : 3.5 multiplier_x PartNumber : LenTLyzvr3ogih5c-11 ProductDescription : 1. Physical Design: With a small tripod mount bracket and a removable lens hood to help minimize lens and ghosting. The rotatable tripod holder provides optimal balance and allows for quick and easy vertical format shooting during rotation. 2. Lens Type: The 500mm F6.3 telephoto lens adopts a precise achromatic refractor design, which can obtain images with good peak contrast and flare control. You can use this lens in the M manual exposure mode. 3. Optical Design: The 500mm F6.3 telephoto lens has 4 sets of 4 optical structures, and multi layer coating can suppress lens spot and ghosting, improve contrast and color authenticity. 4. Accurate Calibration: The manual focusing design is complemented by depth of field and distance calibration, making it easy to use pre focusing technology to provide and clear images. 5. 500mm F/6.3 Achromatic Refraction Telephoto Lens: 500mm F/6.3 ultra long zoom lens is a good choice for bird and wildlife photography and ultra long distance photography. 6. Compatibility: When used in conjunction with the included T2 PK mount adapter , 500mm F6.3 prime telephoto lens is suitable for DSLR camera KA mount lens. 7. Exquisite Workmanship: The 500mm F6.3 prime telephoto lens has alloy body which has a strong texture, exquisite appearance, and exquisite craftsmanship.