{"product_id":"antlia-solar-discover-dualband-ha-cak-and-cah-filter-assembly-mini","title":"Antlia Solar Discover Dualband Ha CaK and CaH Filter Assembly - Mini","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePasses Ha (656.3nm), CaK (393.3nm), and CaH (396.8nm) wavelengths\u003c\/li\u003e\n\u003cli\u003eWithout extra light reduction, for refractors up to 100mm aperture only\u003c\/li\u003e\n\u003cli\u003eComes with an Antlia Energy Rejection Filter (ERF) that blocks UV and IR\u003c\/li\u003e\n\u003cli\u003eND filter factory-installed in a fully closed CNC machined aluminum tube\u003c\/li\u003e\n\u003cli\u003eDesigned with a 1.25'' adapter\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\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\u003eAntlia Solar Discover Dualband Ha CaK and CaH Filter Assembly - Mini\u003c\/h2\u003e\n\u003cp\u003eThe Antlia Solar Discover Dualband Ha CaK and CaH Filter Assembly - Mini is designed specifically for solar photosphere photography. This Mini version is designed with a 1.25'' adapter and passes Ha at 656.3nm, CaK at 393.3nm and CaH at 396.8nm, enhancing contrast and sharpness with greater visibility of surface details and sunspots and higher contrast for solar faculae. It comes with an Antlia Energy Rejection Filter (ERF), and the necessary ND filter is factory-installed in the tube. Without extra light reduction it can only be used with refractors up to 100mm aperture. Antlia's transmittance requirement for the visible range (380-780nm) is a maximum of 0.0032%.\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\u003eDual-Band Imaging: Capturing 656.3nm Ha, 393.3nm CaK, and 396.8nm CaH\u003c\/h3\u003e\n\u003cp\u003eThe Antlia Solar Discover passes Ha (656.3nm), CaK (393.3nm) and CaH (396.8nm) and is designed for photosphere imaging, such as sunspots. Antlia states that it enhances contrast and sharpness, giving greater visibility of surface details and sunspots and higher contrast for solar faculae.\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\u003eERF, ND Filter and Antlia Transmittance Requirements\u003c\/h3\u003e\n\u003cp\u003eThe assembly comes with an Antlia Energy Rejection Filter (ERF) that blocks UV and IR light. When you use a zenith mirror, the ERF filter must be installed in the correct position for safe operation; refer to Antlia's installation diagram. The necessary ND filter is factory-installed in the tube. Antlia's transmittance requirements are a maximum of 0.0032% in the visible (380-780nm), UVB and UVA ranges, and a maximum of 3% in the IR (780-1700nm). The filters are assembled in a fully closed tube, CNC machined from aircraft aluminum and oxidized, and Antlia states that no stray light can escape from it.\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\u003eTelescope Aperture: Refractors up to 100mm\u003c\/h3\u003e\n\u003cp\u003eWithout extra light reduction, the assembly can only be used with refractors up to 100mm aperture. With a telescope above 100mm aperture, Antlia requires additional light reduction for safe operation, such as ERF filters, solar safety films or lowering the telescope aperture. It installs like the Antlia CaK 3nm Solar Herschel Wedge, with the telescope at one end and the camera at the other, and this Mini version is designed with a 1.25'' adapter.\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\u003eSolar Discover Assembly vs. Traditional Solar Film\u003c\/h3\u003e\n\u003cp\u003eAntlia states that, compared to other solar reducing films, the Solar Discover Dualband assembly offers these advantages:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigher Contrast and Resolution:\u003c\/strong\u003e Higher contrast for solar imaging and higher resolution of the solar surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e The design is less susceptible to wear and tear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEase of Use:\u003c\/strong\u003e It is user-friendly and installs like the Antlia CaK 3nm Solar Herschel Wedge, with the telescope at one end and the camera at the other.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Antlia Solar Discover is designed specifically for solar photosphere photography and is not recommended by Antlia for visual observation.\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\"\u003eCan I use the Antlia Solar Discover Mini for visual solar observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eNo, this product is not recommended for visual use.\u003c\/strong\u003e The infrared blocking characteristics are slightly different from the ISO 12312-2 standard for visual solar viewers. For technical requirements and safety considerations, Antlia does not recommend it for visual observation, and adds that if the product is used for visual observation, all filters built into the assembly must be in good condition for safety. It is designed for solar photosphere photography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the difference between the Mini and Standard versions of the Antlia Solar Discover?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe difference Antlia states is the adapter. The \u003cstrong\u003eMini version is designed with a 1.25'' adapter.\u003c\/strong\u003e The Standard version is compatible with both 1.25'' and 2'' adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Antlia Solar Discover Mini on a telescope larger than 100mm aperture?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eOnly with additional light reduction. Without it, the assembly can only be used with \u003cstrong\u003erefractors up to 100mm aperture\u003c\/strong\u003e. Above 100mm aperture, Antlia states you \u003cstrong\u003emust use additional light reduction\u003c\/strong\u003e for safe operation, such as ERF filters, solar safety films or lowering the telescope aperture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat solar details does the Antlia Solar Discover Mini bring out?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAntlia designed the assembly for solar \u003cstrong\u003ephotosphere\u003c\/strong\u003e imaging, such as \u003cstrong\u003esunspots\u003c\/strong\u003e. It enhances contrast and sharpness, giving greater visibility of surface details and higher contrast for solar \u003cstrong\u003efaculae\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need to buy a separate ERF for the Antlia Solar Discover Mini?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, an \u003cstrong\u003eAntlia Energy Rejection Filter (ERF) is included\u003c\/strong\u003e in the box. When you use a zenith mirror, the ERF filter must be installed in the correct position for safe operation, as shown in Antlia's installation diagram.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eMy Antlia Solar Discover Mini looks different from the pictures online. Is it a genuine product?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is normal. Antlia has noted that due to different production batches, the \u003cstrong\u003eMini version may have two different physical appearances\u003c\/strong\u003e. The function and installation are the same.\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\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eSolar photosphere imaging filter assembly\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVersion\u003c\/td\u003e\n\u003ctd\u003eMini\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter Size\u003c\/td\u003e\n\u003ctd\u003e1.25''\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePassed Wavelengths\u003c\/td\u003e\n\u003ctd\u003eHa 656.3nm, CaK 393.3nm, CaH 396.8nm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRecommended Telescope Aperture\u003c\/td\u003e\n\u003ctd\u003eRefractors up to 100mm (without additional light reduction)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEnergy Rejection Filter (ERF)\u003c\/td\u003e\n\u003ctd\u003eIncluded, blocks UV and IR\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eND Filter\u003c\/td\u003e\n\u003ctd\u003eFactory-installed in the tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Transmittance (Visible 380-780nm)\u003c\/td\u003e\n\u003ctd\u003e0.0032%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMin Transmittance (Visible 380-780nm)\u003c\/td\u003e\n\u003ctd\u003e0.000061%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Transmittance (UVB 280-315nm)\u003c\/td\u003e\n\u003ctd\u003e0.0032%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Transmittance (UVA 315-380nm)\u003c\/td\u003e\n\u003ctd\u003e0.0032%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Transmittance (IR 780-1700nm)\u003c\/td\u003e\n\u003ctd\u003e3%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVisual Use\u003c\/td\u003e\n\u003ctd\u003eNot Recommended\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Construction\u003c\/td\u003e\n\u003ctd\u003eFully closed, CNC machined aircraft aluminum, oxidized\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInstallation\u003c\/td\u003e\n\u003ctd\u003eTelescope at one end, camera at the other; with a zenith mirror, the ERF must be in the correct position\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAppearance Note\u003c\/td\u003e\n\u003ctd\u003eTwo appearances depending on batch; function and installation are the same\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003e3-years (void if disassembled)\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\"\u003eSolar Discover Dualband filter assembly\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAntlia Energy Rejection Filter (ERF)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eND filter (factory-installed in the tube)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n3-Year Manufacturer Warranty. Disassembly of the assembly is prohibited and voids the warranty.\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Antlia","offers":[{"title":"Default Title","offer_id":51932625568029,"sku":"ANT-SD-MINI","price":99.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/antlia-src-o1rqerAEw6Ac46Ac_f6c4fe8e-7cf0-4030-a984-14e399a0d56b.jpg?v=1792550012","url":"https:\/\/davidastro.com\/en-int\/products\/antlia-solar-discover-dualband-ha-cak-and-cah-filter-assembly-mini","provider":"David Astro","version":"1.0","type":"link"}