Specification Brand : SVBONY BulletPoint : The filters are used for deep sky astrophotography BulletPoint1 : The includes 8 different colors, 8 pieces in total. BulletPoint2 : Comes with ge-neral standard inch thread (Fine Thread), suitable for most telescopes. and use, a great for astronomical lovers. BulletPoint3 : aluminum alloy and optical glass, this product is sturdy and . BulletPoint4 : It can reduce eye strain and improve contrast and detail of the planet. BulletPoint5 : Fitting for enhanced views , , for , for , , , for , etc.Black filter is used as a solar filter. Color : As Main Image Shows ExternallyAssignedProductIdentifier : 7641950514020 IncludedComponents : 1X SHO Filter sets ItemDisplayDimensions_Height : 0.43 centimeters ItemDisplayDimensions_Length : 1.18 centimeters ItemDisplayDimensions_Width : 1.18 centimeters ItemName : SVBONY SV227 Telescope Filter, 5nm 1.25 inches SHO Filter Set SII H-Alpha OIII Narrowband Astronomical Photography CCD Filter for Deep Sky Astrophotography ItemPackageDimensions_Height : 82 millimeters ItemPackageDimensions_Length : 80 millimeters ItemPackageDimensions_Width : 89 millimeters ItemPackageQuantity : 1 ItemTypeKeyword : telescope-filters Manufacturer : SVBONY Material : Metallic Glass ModelNumber : CVYPYWBVP NumberOfItems : 1 NumberOfLithiumMetalCells : 1 NumberOfPieces : 1 PartNumber : FW9187A PhotoFilterEffectType : Enhancing PhotoFilterThreadSize : 28.5 millimeters ProductDescription : These SVBONY 1.25" SHO Filter Kit are made with advanced glass that has been multi-coated with an ion-assisted deposition technology to ensure scratch resistance and stability on the central wavelength, or CWL. The filter cell is made of lightweight, strong metal and is CNC machined, sand-blasted; black anodized, and then laser engraved. The SHO 5nm is an extremely narrow emission-line filter that works by allowing a 5nm bandwidth of light, centered on the 500.7nm&656.3nm&671.6nm wavelength through, and blocking the transmission of contrast-killing light pollution wavelengths. Wavelengths that are responsible for natural light pollution, or skyglow, are drastically reduced, as is artificial light pollution caused by high- and low-pressure sodium vapor and mercury vapor lights. The Blocks infrared wavelengths from 700nm to 1100nm so you don't need a separate IR-Cut filter. ProductSiteLaunchDate : 2024-10-31T11:25:05.698Z Size : 3.1cm SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1 UnspscCode : 45121628 WarrantyDescription : We provide 1 year warranty for SVBONY telescope accessories and 30 days no reason to return. Beyond the warranty period: We still offer maintain service, buyers are required to afford corresponding costs. We processed in the most hassle-free way possible.You just need to contact with us on Amazon ,we will reply you within 12 hours WaterResistanceLevel : not_water_resistant