{"product_id":"orion-optics-uk-ag14-losmandy-attachment-plate-400mm-long-recommended","title":"Orion Optics UK Losmandy Attachment Plate 400mm Long","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e400mm Dovetail Plate\u003c\/li\u003e\n\u003cli\u003eLosmandy D-Style Profile\u003c\/li\u003e\n\u003cli\u003eSolid Aero-Grade Aluminum Construction\u003c\/li\u003e\n\u003cli\u003eMounts CT and AG Telescopes\u003c\/li\u003e\n\u003cli\u003eCompatible with Losmandy \u0026amp; Paramount Mounts\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\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\u003eLosmandy Attachment Plate 400mm Long\u003c\/h2\u003e\n      \u003cp\u003eThe Losmandy attachment plate provides a rigid, 400mm long mounting solution for securely coupling your telescope to a high-capacity mount. Machined from a single block of aero-grade aluminum, this plate creates a zero-flexure connection ideal for telescopes with apertures around 400mm, ensuring your optical tube remains perfectly aligned with the mount's saddle.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eSecure Mounting for 400mm OTAs on Losmandy\/Paramount Mounts\u003c\/h3\u003e\n      \u003cp\u003eThis 400mm plate is engineered specifically for the Losmandy D-style dovetail standard, ensuring a perfect fit with Losmandy and Paramount mount saddles. It serves as the critical interface between your optical tube and mount, providing a wide, stable base that prevents twisting and slippage during tracking.\u003c\/p\u003e\n       \u003cp\u003eFor optimal stability, the recommended plate length corresponds to the telescope's aperture. This 400mm plate is the ideal match for larger CT and AG astrographs, providing ample support along the tube to eliminate mechanical flexure that can ruin long exposures.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n  \n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eA 400mm Foundation: Machined from Solid Aero-Grade Aluminum\u003c\/h3\u003e\n      \u003cp\u003eUnlike cast or extruded dovetail bars, this 400mm attachment plate is CNC machined from a solid billet of aero-grade aluminum. This process results in a component with superior strength and rigidity, free from the internal stresses that can cause warping with temperature changes.\u003c\/p\u003e\n      \u003cp\u003eThis robust construction is essential for astrophotography, where even microscopic flexure can lead to elongated stars. The plate forms an unyielding foundation for your entire imaging train, including heavy cameras, filter wheels, and guide scopes attached via CNC tube rings.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhich mounts is the Losmandy attachment plate 400mm long compatible with?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis plate is designed with a \u003cstrong\u003eLosmandy D-style profile\u003c\/strong\u003e, making it directly compatible with any mount that uses a Losmandy-D saddle plate. This includes all Losmandy mounts and Software Bisque Paramount-series mounts.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat size telescope is the 400mm Losmandy attachment plate intended for?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe general recommendation is to match the dovetail plate length to the aperture of your telescope. Therefore, this \u003cstrong\u003e400mm plate\u003c\/strong\u003e is the ideal choice for telescopes with an aperture of or near 400mm (approximately 16 inches), such as large Newtonian astrographs or Cassegrains.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount my 12\" (300mm) Newtonian on this 400mm Losmandy plate?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, you can. While a slightly shorter plate might be a closer match based on the \"aperture equals length\" rule, using this 400mm plate will provide extra length for balancing heavy accessory loads. It ensures your tube rings have a wide, stable stance, which is always beneficial for imaging stability.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I attach a guide scope using the Losmandy attachment plate 400mm?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis plate serves as the primary connection to the mount. To attach a guide scope, you would typically mount it to the top of your main telescope's CNC tube rings. Some setups may involve a secondary dovetail bar (sold separately) attached to the top of the rings, to which the guide scope is then clamped.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Losmandy attachment plate 400mm made from cast or machined aluminum?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIt is \u003cstrong\u003emachined from a solid billet of aero-grade aluminum\u003c\/strong\u003e. This method is superior to casting, as it produces a stronger, more rigid, and dimensionally stable part that will not introduce flexure into your imaging setup.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use this 400mm Losmandy plate to attach my scope to a Vixen-style mount like an HEQ5?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo, not directly. This plate has a wider Losmandy D-style profile. Vixen-style mounts like the Sky-Watcher HEQ5 use a narrower V-style saddle. You would need a different dovetail plate with a Vixen profile or a hybrid saddle on your mount that accepts both standards.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eAG14\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e400mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eDovetail Profile\u003c\/td\u003e\n\u003ctd\u003eLosmandy D-Style\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eSolid Aero-Grade Aluminum, CNC Machined\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003ePrimary Compatibility\u003c\/td\u003e\n\u003ctd\u003eLosmandy and Paramount Mounts\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eRecommended Telescope Type\u003c\/td\u003e\n\u003ctd\u003eOrion Optics UK CT and AG models\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\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\"\u003eLosmandy Attachment Plate 400mm\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/orion-optics-uk-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eOrion Optics UK 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Orion Optics UK","offers":[{"title":"Default Title","offer_id":52942363590941,"sku":"OOUK-AG14-LOSMANDY-ATTACHMENT-PLATE-400MM","price":416.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/OrionOpticsUK-Losmandy-attachment-plate-400mm-long-1_a7d9235a-6b4a-411b-a534-aca54b2e6810.jpg?v=1789606788","url":"https:\/\/davidastro.com\/fr\/products\/orion-optics-uk-ag14-losmandy-attachment-plate-400mm-long-recommended","provider":"David Astro","version":"1.0","type":"link"}