Specification Brand : CYZW BulletPoint1 : For Astronomical telescope accessories objective lens: 60mm Caliber, Focal Length: F360, F500, F600, F700, F800, F900MM BulletPoint2 : Caliber: 60mm (the actual outer diameter of all lenses in series 60 is: 62mm) BulletPoint3 : Focal length: 360/500/600/700/800/900 mm BulletPoint4 : This objective lens is a double separation structure design. The outer layer and the inner layer of the objective lens are coated with blue film BulletPoint5 : Pack include:1pc Color : 545mm ExternallyAssignedProductIdentifier : 4049467535119 ExternallyAssignedProductIdentifier1 : 0791533310543 ExternallyAssignedProductIdentifier2 : 791533310543 Finderscope : NO FocusType : NO IncludedComponents : 4' Power Cable - Standard RCA Connectors ItemName : CYZW Astronomical Telescope Accessories Double Separation Blue Membrane Lens D60MM F500/600/700/800/900mm (D60F600MM) ItemPackageDimensions_Height : 17.3 centimeters ItemPackageDimensions_Length : 4.1 centimeters ItemPackageDimensions_Width : 6.9 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : barlow-lenses Manufacturer : CYZW ModelName : Telescope Accessories ModelNumber : SG_B0033UOK4Q_US NumberOfItems : 1 PartNumber : 0200 PowerSourceType : Battery Powered ProductDescription : Package includes:1PC Need a large amount can contact me, the price can be discounted),(Depending on your choice, only applies to one size) 60mm aperture astronomical telescope accessories lens focal length 360/500/600/700/800/900 Caliber: 60mm (the actual outer diameter of all lenses in series 60 is: 62mm) Focal length: 360/500/600/700/800/900 mm This objective lens is a double separation structure design, which can separate the outer layer and the inner layer of the blue film objective lens. ProductSiteLaunchDate : 2020-04-27T07:00:00.000Z Size : D60F600MM SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnitCount : 1 Voltage : 12 volts WarrantyDescription : NO