{"product_id":"baader-planetarium-astrosolar-clearwhite-safety-film-od-5-1","title":"Baader Planetarium AstroSolar® ClearWhite Safety Film OD 5.1","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eCertified AstroSolar® Safety Film\u003c\/li\u003e\n\u003cli\u003eOptical Density 5.1 for Visual Use\u003c\/li\u003e\n\u003cli\u003eAvailable as 100x50cm or Giant-size 117x117cm Sheet\u003c\/li\u003e\n\u003cli\u003e\"ClearWhite\" Neutral Color Rendition\u003c\/li\u003e\n\u003cli\u003eIdeal for DIY Custom-Fit Filter Cells\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eAstroSolar® ClearWhite Safety Film OD 5.1\u003c\/h2\u003e\n\u003cp\u003eThe Baader AstroSolar® ClearWhite Safety Film provides certified Optical Density 5.1 protection in a large 100x50cm sheet or a giant-size 117x117cm sheet, enabling the construction of custom, full-aperture white-light solar filters that render the sun in its true neutral color for visual observation and high-resolution imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eOD 5.1 Certified: Safe White-Light Solar Viewing\u003c\/h3\u003e\n\u003cp\u003eThis film is engineered for direct visual observation of the sun. The Optical Density 5.1 rating ensures that it reduces the intensity of sunlight by over 99.999%, blocking harmful UV and IR radiation while transmitting just enough light for comfortable, safe viewing. Unlike films that produce an orange or yellow image, the \"ClearWhite\" coating provides a completely neutral color balance. This allows you to perceive the subtle details and true coloration of sunspots, faculae, and granulation without any artificial tint.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eCustom Solar Filters: Two Sheet Sizes for Any Aperture\u003c\/h3\u003e\n\u003cp\u003eThe 100x50cm sheet supplies enough material to create multiple filters for smaller instruments like binoculars and finder scopes, or a single, full-aperture filter for a large telescope. The giant 117x117cm sheet goes further, covering the largest amateur telescopes, including Dobsonians over 20 inches in aperture, or yielding dozens of smaller filters for astronomy clubs and group projects. Either format gives you the freedom to build a perfectly fitted, lightweight filter cell for any optical tube you own, from a small refractor to a large Dobsonian reflector. A custom full-aperture filter ensures you are using your telescope's maximum resolution and light-gathering power for the sharpest possible solar views.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eAstroSolar Film vs. Glass Filters: Optical and Thermal Stability\u003c\/h3\u003e\n\u003cp\u003eWhile traditional glass solar filters offer superior physical durability, AstroSolar film provides distinct optical and thermal advantages. Baader's film is a substrate-free polymer, eliminating the risk of striae and internal imperfections common in glass, which can degrade image sharpness. The film's low thermal mass allows it to equalize with ambient temperature almost instantly, preventing the formation of tube currents that often plague thicker glass filters during morning observations. The primary trade-off is the film's delicate nature, requiring careful handling and a properly constructed cell for optimal results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does Optical Density (OD) 5.1 mean for the AstroSolar® Safety Film?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eOptical Density 5.1\u003c\/strong\u003e is a measure of light reduction and is the certified standard for safe, direct visual observation of the sun through a telescope. It means the film transmits only 1\/126,000th of the sun's light, effectively blocking 99.999% of its intensity, including harmful ultraviolet and infrared radiation, to a level that is safe for the human eye.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow many filters can I make from one sheet of AstroSolar® Film?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe number of filters depends on the aperture of your instruments and the sheet size you choose. As a guide:\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOne very large filter, e.g. for a 16\" (400mm) telescope from the 100x50cm sheet, or for a Dobsonian over 20 inches from the 117x117cm sheet.\u003c\/li\u003e\n\u003cli\u003eMultiple medium-sized filters, e.g. several 8\" (200mm) SCT or Dobsonian filters from the 100x50cm sheet, or approximately four filters for 20-inch (50cm) telescopes from the 117x117cm sheet.\u003c\/li\u003e\n\u003cli\u003eA large number of small filters for binoculars, finder scopes, and camera lenses.\u003c\/li\u003e\n\u003c\/ul\u003e\nAlways measure the outer diameter of your optical tube before cutting the film.\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow is the \"ClearWhite\" view of this AstroSolar® Film different from other solar films?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \"ClearWhite\" designation means this AstroSolar® Film is designed to show the sun in its \u003cstrong\u003enatural, neutral white color\u003c\/strong\u003e. Many other solar films and filters impart a strong orange or yellow cast to the image. A neutral view can make it easier to discern subtle details in sunspot penumbrae and bright faculae near the solar limb.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the AstroSolar® ClearWhite Safety Film OD 5.1 for photography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, you can. The OD 5.1 film is perfectly suitable for solar photography, especially when using high frame rates (lucky imaging) for surface detail. However, because it is visually safe, it requires longer exposures or higher gain than dedicated photographic solar film (like Baader's OD 3.8 Photo Film), which is not safe for visual use.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo small wrinkles in the AstroSolar® Safety Film affect the image?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, minor wrinkles or waves in the film do not impact optical quality. In fact, the film should be mounted with slight looseness, not stretched taut like a drumhead. Stretching the film can degrade its optical properties. As long as the film is securely mounted in its cell, small wrinkles will have no effect on the sharpness or contrast of the solar image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this AstroSolar® Film a better choice than a welder's glass filter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. While welder's glass can dim the sun, it is not designed or certified for optical use and often has poor optical quality that will severely degrade the image from a telescope. AstroSolar® Safety Film is a precision optical material made to maintain the sharpness and contrast delivered by your telescope, while providing certified safety for your eyes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolar Wavelength\u003c\/td\u003e\n\u003ctd\u003eWhitelight (integral light)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSolar Filter with mount\/thread?\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e100x50cm\u003c\/h3\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct\u003c\/td\u003e\n\u003ctd\u003eAstroSolar® ClearWhite Safety Folie\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Density (OD)\u003c\/td\u003e\n\u003ctd\u003e5.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended Use\u003c\/td\u003e\n\u003ctd\u003eVisual Solar Observation and Photography\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e100cm x 50cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor Rendition\u003c\/td\u003e\n\u003ctd\u003eNeutral White\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertification\u003c\/td\u003e\n\u003ctd\u003eCE \/ ISO 12312-2:2015\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter \/ Clear Aperture (mm)\u003c\/td\u003e\n\u003ctd\u003e100 x 50 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003e117x117cm (Giant-size)\u003c\/h3\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilm Type\u003c\/td\u003e\n\u003ctd\u003eAstroSolar® ClearWhite Safety Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Density (OD)\u003c\/td\u003e\n\u003ctd\u003e5.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e117 x 117 cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVisual Safety\u003c\/td\u003e\n\u003ctd\u003eCertified Safe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Use\u003c\/td\u003e\n\u003ctd\u003eHigh-Resolution Solar Imaging, Visual Observation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet weight (kg)\u003c\/td\u003e\n\u003ctd\u003e0.04\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAstroSolar Film\u003c\/td\u003e\n\u003ctd\u003eAstroSolar® ClearWhite Safety Folie\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAstroSolar® ClearWhite Safety Film OD 5.1\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1 sheet (selected size)\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_AstroSolar_Filter_v1.7_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium AstroSolar Filter v1.7 Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_How_to_Build_Your_Own_AstroSolar_Filter.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium How to Build Your Own AstroSolar Filter\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Baader_Planetarium_AstroSolar_ClearWhite_OD_5.1_Safety_Instructions.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBaader Planetarium AstroSolar ClearWhite OD 5.1 Safety Instructions\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/baader-planetarium-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eBaader Planetarium Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Baader Planetarium","offers":[{"title":"100x50cm","offer_id":52913250369821,"sku":"BAA-2422003","price":168.0,"currency_code":"CAD","in_stock":true},{"title":"117x117cm (Giant-size)","offer_id":52913250402589,"sku":"BAA-2422004","price":576.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/BaaderPlanetarium-AstroSolar-ClearWhite-Safety-Folie-OD-5-1-100x50cm-1_1cf6b6b8-6f66-456e-b71d-9bb471d11236.jpg?v=1789088698","url":"https:\/\/davidastro.com\/products\/baader-planetarium-astrosolar-clearwhite-safety-film-od-5-1","provider":"David Astro","version":"1.0","type":"link"}