Specification Brand : Baader Planetarium BulletPoint1 : aader Planetarium 140mm AstroSolar Telescope Filter - 3x 10x38mm Centering Bolts - 3x 20x38mm Centering Bolts - 3x Safety Straps with Glue-pads - 3x Rubber Plugs - Instruction Manual - Baader Planetarium Warranty F BulletPoint2 : Usage: Visual solar observation and imaging at high magnification BulletPoint3 : Astrosolar Film: AstroSolar Safety Film BulletPoint4 : Optical Density: 5 BulletPoint5 : Inner Diameter / Clear Aperture: 140mm ExternallyAssignedProductIdentifier1 : 4047825033024 ExternallyAssignedProductIdentifier2 : 04047825033024 ItemName : Baader Planetarium 140mm AstroSolar Telescope Filter ItemPackageDimensions_Height : 3.4 centimeters ItemPackageDimensions_Length : 27.8 centimeters ItemPackageDimensions_Width : 26.6 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : telescope-filters Manufacturer : Baader Planetarium Material : Glass ModelName : Depurate201grviqu3 ModelNumber : 2459313 NumberOfPieces : 1 PartNumber : 2459313 PhotoFilterEffectType : Enhancing PhotoFilterThreadSize : 140 millimeters ProductDescription : Mounted Filters with Baader AstroSolar Safety Film OD 5.0 After 15 years of offering AstroSolar film sheets as DIY-product, this system of Baader Solar Filters is designed to retain the true optical quality of the diffraction limited AstroSolar Safety Film. Baader Solar Filters provide a professional and secure solution to observe and image the Sun using AstroSolar Safety Film OD 5.0. Many ready made filters do stretch the filter material like a drumhead in order to make it look like a piece of glass - this absolutely does destroy the image quality, rendering the film useless for high magnification work. AstroSolar must be mounted entirely stress free in order to perform like a high precision plane optical window. It sounds like a contradiction with traditional perception of quality, but AstroSolar must show slight ripples! Only when the film is being put under stress by an improper cell mount it performs just like any single side coated glass-filter made of untreated float glass. Original Baader AstroSolar Safety Film (OD 5.0), cell mounted and quality inspected by skilled members of their staff Clear white IR-rejecting front ring with reinforcing raised edges along the outer and inner circumference, designed to protect the solar filter material from contact with any sharp metal edge No tool mounting and adjustment of the centering bolts to fit a wide variety of mechanical tube diameters. Bolts made to contact the outside or o ProductSiteLaunchDate : 2015-10-12T04:40:03.773Z SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 41111715 WaterResistanceLevel : not_water_resistant