Specification AgeRangeDescription : Adult BinocularPrismDescription : Porro Prism Brand : Celestron BulletPoint1 : Molded Finger impressions and embossed logos for a firm grip.; Water resistant body and nylon carrying case; Diopter adjustment for fine focusing; Tripod adaptable, No-Fault Lifetime Warranty.; 20 x 50 - 3.2 degree angular field of view, 168 ft. linear FOV, 2.5mm exit pupil, 7mm eye relief, 36 ft. near focus. BulletPoint2 : 7 x 35 - 8 degree angular field of view, 419 ft. linear FOV, 5mm exit pupil, 11mm eye relief, 15 ft. near focus. BulletPoint3 : 10 x 50 Wideangle - 7 degree angular field of view, 367 ft. linear FOV, 5mm exit pupil, 11mm eye relief, 24 ft. near focus. BulletPoint4 : Fully coated optics and BK7 prisms BulletPoint5 : Protective rubber covering Color : Black DiopterAdjustRangeDescription : +/-4 diopters ExitPupilDiameter : 2.5 millimeters ExternallyAssignedProductIdentifier : 5036422307668 ExternallyAssignedProductIdentifier1 : 050234711449 ExternallyAssignedProductIdentifier2 : 0050234711449 ExternallyAssignedProductIdentifier3 : 00050234711449 EyeRelief : 11 millimeters FieldOfView : 367 feet FocusType : Center Focus GpsrSafetyAttestation : 1 IncludedComponents : Binocular, soft case, rainguard, padded strap, rubber objective lens covers IncludedComponents1 : Binoculars IncludedComponents2 : Carrying Bag IncludedComponents3 : Lens Protective Cover IncludedComponents4 : Neck strap IncludedComponents5 : Lens Cleaning Cloth ItemName : Celestron 71144 UpClose 20x50 Porro Prism Binoculars ItemPackageDimensions_Height : 10 centimeters ItemPackageDimensions_Length : 23.4 centimeters ItemPackageDimensions_Width : 21.2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : binoculars MagnificationMaximum : 20 multiplier_x Manufacturer : Celestron Material : Rubber Material1 : Rubber Material2 : Polycarbonate (PC) Material3 : Plastic ModelName : upclose ModelNumber : 71144 MountingType : Tripod Mount NumberOfItems : 1 OpticalZoom : 20 multiplier_x PackageLevel : unit PartNumber : 71144 ProductDescription : 12-36x50 High Magnification Zoom Binoculars for Adult with 50mm Objective Lenses for Brightness and Clarity Zoom binoculars are a high quality practical optical device. While ordinary binoculars can only have a fixed magnification, the zoom is self-adjusting and very smooth.. With 12-36x magnification and excellent clarity, it provides larger, sharper, high-resolution images. It utilizes BAK-4 prisms, which provide better light transmission than BK7 prisms, reducing image distortion while providing a brighter display. It also features an FMC coating for better image color reproduction. The Zoom binoculars are powerful and foldable, so it won't weigh you down on a hike and fits easily into a backpack, making it the perfect companion for your travels and hunts. The HD binoculars are easy to use, practical and comfortable, suitable for a variety of occasions The central focusing wheel and the right eyepiece ring make the focusing easy to use and adjust accurately, and the two sides are designed with non-slip embossing of odorless rubber material, which is non-slip and wear-resistant. Ergonomic design, comfortable hand feeling, suitable for both adults and children. The whole body of the binoculars is covered with rubber protective layer, which has good shock resistance. Pupil spacing can be adjusted by bending the binocular body. Soft rubber eyecups, more comfortable to wear. Equipped with binoculars neck strap and buckle design, easy to carry, ideal for bird watching, concerts, sporting events and other activities. Specifications: Magnification: 12-36x Objective Lens Diameter: 50mm Eyepiece diameter: 20mm Type: BAK-4 prisms a Coating Type: FMC Weight: 950.5g Color: black