{"product_id":"sky-watcher-evostar-edx-100-apo-f-7-doublet-telescope","title":"Sky-Watcher Evostar EDX 100 APO f\/7  Doublet Telescope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e100mm Objective Lens Diameter\u003c\/li\u003e\n\u003cli\u003e700mm Focal Length (f\/7)\u003c\/li\u003e\n\u003cli\u003eDoublet APO (Ohara FPL-53 ED Glass)\u003c\/li\u003e\n\u003cli\u003eUpgraded 2.8\" Dual-Speed 11:1 Crayford Focuser\u003c\/li\u003e\n\u003cli\u003eRetractable Dew Shield\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\u003eSky-Watcher Evostar EDX 100 APO f\/7 Doublet Telescope\u003c\/h2\u003e\n\u003cp\u003eThe Sky-Watcher Evostar EDX 100 represents a major architectural shift for the 100mm Evostar line. While the classic 100ED was renowned for its f\/9 focal ratio, the new EDX 100 moves to a faster f\/7 design, offering a wider field of view and significantly shorter exposure times for astrophotography. This transition to a \"faster\" system is supported by a complete mechanical overhaul designed to meet the rigors of modern imaging.\u003c\/p\u003e\n\u003cp\u003eBy utilizing an Ohara FPL-53 ED glass element, the EDX 100 maintains the color correction of its slower predecessor while offering a more compact and versatile form factor. It is a high-performance, diffraction-limited instrument that serves as a bridge between portable wide-field refractors and high-resolution planetary tools.\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\u003eApochromatic Performance at f\/7\u003c\/h3\u003e\n\u003cp\u003eThe move to f\/7 increases the photographic speed of the telescope, but Sky-Watcher has ensured that optical integrity remains paramount. The ED doublet design features a positive crown element paired with a negative Ohara FPL-53 extra-low dispersion element. This combination virtually eliminates chromatic aberration, providing clean, high-contrast views of bright targets like the lunar limb or the rings of Saturn.\u003c\/p\u003e\n\u003cp\u003eEach air-to-glass surface is treated with Metallic High-Transmission Coatings (MHTC), ensuring that 99.5% of light reaches your eyepiece or sensor. The result is an image free of ghosting and internal reflections, even when observing faint deep-sky objects near bright stars.\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\u003eRedesigned Mechanical Suite\u003c\/h3\u003e\n\u003cp\u003eThe EDX 100 is built for stability and precision. The most notable upgrade is the 2.8-inch indexed dual-speed 11:1 Crayford focuser. This larger drawtube is significantly more robust than the standard 2-inch versions, providing the stiffness required to hold heavy CMOS cameras and filter wheels without tilt or flexure.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated 360° Rotatable Adaptor:\u003c\/strong\u003e Framing your target is seamless thanks to the rotatable adaptor on the drawtube, allowing you to align your sensor without disturbing the focus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRetractable Dew Shield:\u003c\/strong\u003e The new sliding dew shield reduces the transport length to just 570mm, making the EDX 100 much more portable than the fixed-tube f\/9 models of the past.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctional Carrying Handle:\u003c\/strong\u003e The CNC-machined tube rings are joined by a top rail that doubles as a carrying handle and an accessory mounting platform (Vixen-style).\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe Perfect Mid-Sized Astrograph\u003c\/h3\u003e\n\u003cp\u003eWith a native focal length of 700mm, the EDX 100 is perfectly sized for medium-to-large nebulae and galaxy clusters. For those seeking even more speed, an optically matched 0.92x Focal Reducer\/Flattener is available, bringing the system down to f\/6.44 for faster deep-sky acquisition. Whether you are a visual purist or a dedicated imager, the EDX 100 offers professional-grade features at a highly competitive price point.\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\"\u003eHow does the EDX 100 compare to the older f\/9 100ED?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe EDX 100 is significantly faster (f\/7 vs f\/9), which means it has a shorter focal length (700mm vs 900mm). This provides a wider field of view and requires shorter exposures for photography. Mechanically, the EDX is superior with a 2.8\" focuser, a retractable dew shield, and an integrated rotator—features the older f\/9 model lacked.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the faster f\/7 ratio introduce more false color?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile faster doublets are generally harder to correct, the use of FPL-53 glass and modern lens figuring allows the EDX 100 to maintain excellent apochromatic performance. For visual use and most imaging scenarios, the chromatic aberration remains negligible.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs a field flattener required for photography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor small-sensor cameras (like 1\/1.8\" or 1\" formats), you may not notice significant field curvature. However, for Micro Four Thirds, APS-C, or Full-Frame sensors, we highly recommend the dedicated 0.92x Reducer\/Flattener to ensure sharp stars across the entire frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use 2-inch accessories with this telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 2.8-inch focuser drawtube comes with an adaptor that accepts standard 2-inch star diagonals and accessories, as well as 1.25-inch eyepieces via a reduction adaptor.\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\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eED Doublet Apochromat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e100 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e700 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eED Glass Type\u003c\/td\u003e\n\u003ctd\u003eOhara FPL-53\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eProprietary MHTC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2.8\" Dual-Speed 11:1 Crayford\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Length (Retracted)\u003c\/td\u003e\n\u003ctd\u003e570 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Length (Extended)\u003c\/td\u003e\n\u003ctd\u003e675 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Weight\u003c\/td\u003e\n\u003ctd\u003e5.5 kg (12.1 lbs)\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\u003cimg class=\"DAV-img-box\" alt=\"Sky-Watcher Evostar EDX 100 OTA\" src=\"URL_TO_IMAGE\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEvostar EDX 100 OTA\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\u003cimg class=\"DAV-img-box\" alt=\"Aluminum Storage Case\" src=\"URL_TO_IMAGE\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAluminum Carrying Case\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\u003cimg class=\"DAV-img-box\" alt=\"Tube Rings and Vixen Dovetail\" src=\"URL_TO_IMAGE\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTube Rings \u0026amp; Vixen-style Rail\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\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"#\" 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\"\u003eDownload Manual\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\u003ca href=\"#\" rel=\"noopener\" target=\"_blank\"\u003eSky-Watcher 2-Year Limited Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sky-Watcher","offers":[{"title":"Default Title","offer_id":51132991111453,"sku":"SW-S11145","price":1240.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Sky-Watcher-Evostar-80-EDX-Telescope-1_f8f234c0-7dde-45b6-b28c-1fe01dfb4ba5.jpg?v=1775839524","url":"https:\/\/davidastro.com\/fr\/products\/sky-watcher-evostar-edx-100-apo-f-7-doublet-telescope","provider":"David Astro","version":"1.0","type":"link"}