{"title":"William Optics Mount Accessories","description":"\u003cp\u003eWilliam Optics mount accessories attach and carry a telescope securely on its mount. Mounting rings are available for the Z61, the Cat series and 90mm tubes, with a ZenithStar V1 upgrade ring and riser blocks to raise a scope.\u003c\/p\u003e\u003cp\u003eDovetails cover both standards, with Vixen-style 8\" and long plates, a Losmandy-style Type D plate and DSD 110 and 245 plates. Saddle handle bars in 120mm and 243mm lengths, a Cat series handle bar and a 90mm saddle plate add a carry handle and a place for a guide scope.\u003c\/p\u003e","products":[{"product_id":"william-optics-extension-bar-for-ioptron-skyguider-pro","title":"William Optics Extension Bar for iOptron Skyguider Pro","description":"\u003cul\u003e\n\t\u003cli\u003e\nAdds a declination axis to the iOptron SkyGuider Pro\n\t\u003c\/li\u003e\n\t\u003cli\u003e\nSpecifically designed to fit the iOptron SkyGuider Pro\n\t\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\t\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\t\u003cli class=\"active\"\u003e\n\t\t\u003cp\u003e\nThe William Optics iOptron SkyGuider Pro Dec Adapter is a specialized accessory designed to enhance the functionality and versatility of the iOptron SkyGuider Pro mount. This adapter allows users to add a declination (Dec) axis to the SkyGuider Pro, enabling more precise control over the movement and positioning of their telescope or camera setup.\n\t\t\u003c\/p\u003e\n\t\t\u003cdiv class=\"warning\"\u003e\n\t\t\t\u003cimg alt=\"Disclaimer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/warning-logo.svg?v=1714663206\" width=\"25px\"\u003e\n\t\t\t\u003cp\u003e\nSpecifically designed to fit the iOptron SkyGuider Pro.\n\t\t\t\u003c\/p\u003e\n\t\t\u003c\/div\u003e\n\t\t\n\t\t\u003cdiv\u003e\n\t\t\t\u003ch3\u003e\nCompatibility\n\t\t\t\u003c\/h3\u003e\n\t\t\t\u003chr\u003e\n\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\u003cp\u003e\nSpecifically designed to fit the iOptron SkyGuider Pro, ensuring a secure and stable connection. It is also compatible with Vixen-style dovetail bars, making it versatile for various setups.\n\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003cdiv class=\"image-side-2\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\u003cimg alt=\"William Optics iOptron Skyguider Pro Dec Adapter\" src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-Extension-Bar-for-iOptron-Skyguider-Pro-M-IO-EB20-3__01323.1596133308.1280.1280_832x832.jpg?v=1684339627\"\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\n\t\t\t\u003cdiv style=\"background-color: #0a0001; border-radius: 5px;\"\u003e\n\t\t\t\t\u003ch3 style=\"color: white!important;\"\u003e\nFine Adjustment Controls\n\t\t\t\t\u003c\/h3\u003e\n\t\t\t\t\u003chr\u003e\n\t\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\t\u003cdiv class=\"image-side-2\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\t\u003cimg alt=\"William Optics iOptron Skyguider Pro Dec Adapter\" src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-Extension-Bar-for-iOptron-Skyguider-Pro-M-IO-EB20-2__74620.1596133308.1280.1280_832x832.jpg?v=1684339627\"\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\t\u003cp style=\"color: white!important;\"\u003e\nEquipped with fine adjustment knobs or screws to enable precise control over the declination axis, aiding in accurate alignment and smooth tracking of celestial objects.\n\t\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\t\t\u003c\/div\u003e\n\n\t\t\u003ch3\u003eDeclination Axis Addition:\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nThis adapter adds a declination axis to the iOptron SkyGuider Pro, allowing for more precise adjustments in the north-south direction, which is essential for accurate polar alignment and tracking.\n\t\t\u003c\/p\u003e\n\t\t\u003cdiv style=\"text-align: left;\"\u003e\n\t\t\t\u003cimg alt=\"William Optics iOptron Skyguider Pro Dec Adapter\" src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-Extension-Bar-for-iOptron-Skyguider-Pro-M-IO-EB20-1__57221.1596133308.1280.1280_832x832.jpg?v=1684339627\"\u003e\n\t\t\u003c\/div\u003e\n\t\t\n\t\t\u003ch3\u003eConstruction\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nMade from high-quality materials, such as anodized aluminum, to ensure durability, stability, and resistance to wear and tear.\n\t\t\u003c\/p\u003e\n\t\t\n\t\t\u003ch3\u003ePrecision Engineering\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nFeatures precision machining for a tight and secure fit, minimizing any unwanted movement or vibrations and enhancing overall tracking accuracy.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003eEase of Use\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nDesigned for easy attachment and detachment, allowing users to quickly set up or dismantle their equipment as needed.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003eVersatility\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nIdeal for both astrophotography and observational astronomy, providing the necessary control for long-exposure shots and detailed observations.\n\t\t\u003c\/p\u003e\n\n\t\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967238795549,"sku":"WO-M-IO-EB20RD","price":49.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Extension-Bar-for-iOptron-Skyguider-Pro-M-IO-EB20-1__57221.1596133308.1280.1280.jpg?v=1684339627"},{"product_id":"william-optics-ioptron-skyguider-pro-dec-adapter","title":"William Optics iOptron Skyguider Pro Dec Adapter","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDirectly Mounts William Optics Scopes to iOptron Skyguider Pro\u003c\/li\u003e\n\u003cli\u003eReplaces the Standard Declination (DEC) Bracket\u003c\/li\u003e\n\u003cli\u003eLow-Profile Design for Enhanced Stability\u003c\/li\u003e\n\u003cli\u003eOptimized for Wide-Field Astrophotography Setups\u003c\/li\u003e\n\u003cli\u003eLightweight, Anodized Aluminum Construction\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\u003eWilliam Optics iOptron Skyguider Pro Dec Adapter\u003c\/h2\u003e\n\u003cp\u003eThe William Optics iOptron Skyguider Pro Dec Adapter is a specialized component engineered to create a seamless, rigid connection between your William Optics telescope and the iOptron Skyguider Pro mount. By replacing the mount's stock declination assembly, this adapter provides a lower-profile, more stable platform that is critical for demanding wide-field astrophotography. It is the definitive mounting solution for creating a compact, robust, and travel-ready imaging rig.\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\u003eA Direct-Fit Upgrade for William Optics Scopes\u003c\/h3\u003e\n\u003cp\u003eThis adapter is designed to integrate perfectly with popular William Optics refractors like the RedCat and SpaceCat series. It eliminates the need for additional dovetail bars and clamps, reducing the number of potential flexure points in your imaging train. The result is a more solid connection that translates to better tracking accuracy and sharper stars during long exposures.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLower Center of Gravity:\u003c\/strong\u003e By bringing the telescope closer to the mount's axis, the adapter improves balance and reduces strain on the mount's motor, enhancing tracking stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced Weight:\u003c\/strong\u003e This streamlined solution is lighter than a combination of a separate DEC bracket, saddle, and dovetail bar, making your portable setup easier to transport and balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWilliam Optics Build:\u003c\/strong\u003e Machined from a single block of anodized aluminum, the adapter maintains the high-quality construction expected from William Optics, ensuring durability and a precise fit.\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\u003eAdapter vs. Standard Dovetail: Stability Over Universality\u003c\/h3\u003e\n\u003cp\u003eWhile a standard Vixen-style dovetail bar offers the flexibility to mount a wide variety of instruments, it introduces more components and a higher center of gravity. For a dedicated William Optics imaging rig, this specialized adapter is the superior choice for maximizing the performance of your Skyguider Pro.\u003c\/p\u003e\n\u003cp\u003eThe trade-off is universality for a significant gain in stability. This direct connection minimizes the lever arm effect, making the entire system less susceptible to vibrations from wind or shutter movement. For imagers seeking the most robust and compact setup possible with their RedCat, this adapter is a non-negotiable upgrade.\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 is the purpose of the William Optics iOptron Skyguider Pro Dec Adapter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is designed to replace the original declination bracket on the iOptron Skyguider Pro mount. It allows you to directly and securely attach a William Optics telescope, such as a RedCat, creating a more stable, compact, and lower-profile imaging platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this adapter improve wide-field imaging of the Andromeda Galaxy (M31) with a RedCat on the Skyguider Pro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhen imaging a large target like the Andromeda Galaxy (M31), you need perfect tracking over long exposures. The \u003cstrong\u003eWilliam Optics Dec Adapter\u003c\/strong\u003e improves stability by reducing flexure points and lowering the telescope's center of gravity. This leads to better tracking from the Skyguider Pro, resulting in sharper stars and more detail across the entire frame of your image.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this adapter help balance my William Optics SpaceCat 51 on the Skyguider Pro more effectively?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. By eliminating the height and weight of a separate dovetail bar and saddle clamp, the adapter brings the SpaceCat 51 closer to the mount's rotation axis. This lower center of gravity makes balancing the setup significantly easier and more stable, which is crucial for the optimal performance of a portable star tracker.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the William Optics Dec Adapter replace any original parts of the iOptron Skyguider Pro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is a direct replacement. You will need to remove the stock declination bracket and Vixen-style saddle that comes with the iOptron Skyguider Pro and install this William Optics adapter in its place.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich telescopes are compatible with the William Optics Dec Adapter for the Skyguider Pro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis adapter is specifically designed for William Optics telescopes that feature their unique mounting base, most notably the \u003cstrong\u003eRedCat 51\u003c\/strong\u003e, \u003cstrong\u003eSpaceCat 51\u003c\/strong\u003e, and other similar refractors. It is not a universal adapter for all telescope brands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this adapter necessary for using a William Optics scope on the Skyguider Pro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it is not strictly necessary. You can mount a William Optics scope using its standard Vixen-style dovetail bar on the stock Skyguider Pro saddle. However, this adapter is considered a significant upgrade that provides a far more rigid and integrated connection, leading to better imaging results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967239188765,"sku":"WO-M-IOPSG-SPM","price":54.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-iOptron-Skyguider-Pro-Dec-Adapter-M-IOPSG-SPM-1__87005.1596133309.1280.1280.jpg?v=1684339631"},{"product_id":"william-optics-dsd-110-plate","title":"William Optics DSD 110 Plate","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDual Saddle Plate Design\u003c\/li\u003e\n\u003cli\u003eAccepts Vixen-Style Dovetails\u003c\/li\u003e\n\u003cli\u003eAccepts Losmandy D-Style Dovetails\u003c\/li\u003e\n\u003cli\u003ePrecision CNC-Machined Construction\u003c\/li\u003e\n\u003cli\u003eDurable Anodized Finish\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\u003eWilliam Optics DSD 110 Plate\u003c\/h2\u003e\n\u003cp\u003eThe William Optics DSD 110 Plate is a robust, universal mounting solution designed to eliminate dovetail incompatibility. Engineered to accept both Vixen-style and the larger Losmandy D-style bars, this dual saddle plate provides a secure, reliable connection point for virtually any telescope in your collection. Its precision construction ensures a rigid link between your optical tube and mount head.\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\u003eUniversal Saddle: Vixen \u0026amp; Losmandy D-Style Compatibility\u003c\/h3\u003e\n\u003cp\u003eThe core of the DSD 110 Plate is its dual-standard saddle. This design allows you to seamlessly switch between telescopes using different dovetail systems without ever needing to change the saddle on your mount. This is an essential component for observers with multiple optical tubes or for astronomy clubs where members use a variety of equipment on a shared mount.\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\u003eWilliam Optics Build: CNC Machining and Anodized Finish\u003c\/h3\u003e\n\u003cp\u003eReflecting William Optics' reputation for quality, the DSD 110 Plate is CNC-machined from a solid block of aluminum for maximum rigidity and a precise fit. The plate is then finished with a protective anodization process that resists scratches and corrosion from nighttime dew. Available in Black, Red, or Grey, you can choose the color that best matches your William Optics telescope or other equipment for a clean, integrated setup.\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 \"DSD\" mean on the William Optics DSD 110 Plate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eDSD\u003c\/strong\u003e stands for \"Dual Saddle Dovetail.\" This means the William Optics DSD 110 Plate is designed to securely clamp both of the two primary dovetail standards in amateur astronomy: the narrower \u003cstrong\u003eVixen-style\u003c\/strong\u003e bar and the wider \u003cstrong\u003eLosmandy D-style\u003c\/strong\u003e bar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have telescopes with both Vixen and Losmandy bars. Will the DSD 110 Plate work for both?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. This is the primary purpose of the DSD 110 Plate. Its dual-saddle design allows you to mount a small refractor with a Vixen bar and then, minutes later, mount a large SCT with a Losmandy bar without needing to swap any hardware on your mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the DSD 110 Plate help in a multi-user or multi-scope setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe William Optics DSD 110 Plate is ideal for shared setups, such as at an observatory or an astronomy club. It standardizes the mount connection, ensuring that any member's telescope, regardless of its dovetail type, can be quickly and safely attached to the house mount, saving significant time and reducing hardware confusion.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the DSD 110 Plate compatible with non-William Optics mounts?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. While designed to complement William Optics mounts, the DSD 110 Plate can be attached to any mount head that features a compatible bolt pattern. It serves as a universal adapter for a wide range of equatorial mounts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I choose a color for my William Optics DSD 110 Plate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe color choice is purely aesthetic. The William Optics DSD 110 Plate is available in \u003cstrong\u003eBlack, Red, and Grey\u003c\/strong\u003e to allow you to perfectly match the color scheme of your William Optics telescope or other anodized accessories in your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of the anodized finish on the DSD 110 Plate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAnodizing creates a hard, corrosion-resistant outer layer on the aluminum. This protects the DSD 110 Plate from scratches, scuffs, and the effects of moisture like dew, ensuring it maintains its function and appearance after years of use in the field.\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\u003eAvailable Options\u003c\/td\u003e\n\u003ctd\u003eBlack, Red, Grey\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\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Black","offer_id":50206091182365,"sku":"WO-M-PRC110BL","price":52.0,"currency_code":"CAD","in_stock":true},{"title":"Red","offer_id":44967239385373,"sku":"WO-M-PRC110RD","price":52.0,"currency_code":"CAD","in_stock":true},{"title":"Grey","offer_id":44967239418141,"sku":"WO-M-PRC110TG","price":52.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-DSD-110-Plate-M-PRC110-1__09703.1596133311.1280.1280.jpg?v=1684339388"},{"product_id":"william-optics-dsd-210-plate","title":"William Optics DSD 210 Plate","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e210 mm total length for balancing flexibility\u003c\/li\u003e\n\u003cli\u003eDual-profile fits both Vixen-style and Arca-Swiss clamps\u003c\/li\u003e\n\u003cli\u003e41.5 mm width provides a stable mounting surface\u003c\/li\u003e\n\u003cli\u003eCNC-machined for a precise and secure fit\u003c\/li\u003e\n\u003cli\u003eAvailable in multiple anodized color finishes\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\u003eWilliam Optics DSD 210 Plate\u003c\/h2\u003e\n\u003cp\u003eThe William Optics DSD 210 Plate solves the persistent gap between astronomical and photographic mounting standards with a single, elegant component. This 210 mm long plate features a unique dual-profile design, allowing it to lock securely into both Vixen-style astronomical saddles and Arca-Swiss photographic tripod heads. Its 41.5 mm width creates a rigid, stable platform for your equipment, eliminating the need for adapter stacks.\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-Format Design: Vixen \u0026amp; Arca-Swiss in 210 mm\u003c\/h3\u003e\n\u003cp\u003eThis plate is engineered with two distinct dovetail profiles machined into a single bar. One side conforms to the Vixen standard common on equatorial mounts and saddles, while the other matches the Arca-Swiss standard used in high-end photography. This allows you to move a small telescope or a camera with a telephoto lens between an astro-mount and a photo tripod without ever changing the plate.\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\u003eA 210 mm Foundation for Precise Balancing\u003c\/h3\u003e\n\u003cp\u003eThe 210 mm length provides ample room to slide your telescope or camera forward and back within its mounting rings or clamp. This is critical for achieving perfect balance, especially after adding a guide scope, camera, or heavy eyepiece. Precise balance reduces strain on your mount's drive motors, leading to more accurate tracking and sharper long-exposure images.\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 is the main advantage of the William Optics DSD 210 plate's dual dovetail?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is universal compatibility. The \u003cstrong\u003eWilliam Optics DSD 210 plate\u003c\/strong\u003e allows you to mount the same piece of equipment—be it a small refractor or a DSLR with a lens—onto both an astronomical mount with a \u003cstrong\u003eVixen-style saddle\u003c\/strong\u003e and a photographic tripod with an \u003cstrong\u003eArca-Swiss clamp\u003c\/strong\u003e without needing to swap plates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat size telescopes are suitable for the 210 mm length of this DSD plate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA 210 mm plate is ideal for small-to-medium refractors (typically up to 80-90mm aperture) and other compact optical tubes. The length provides sufficient travel to balance the telescope correctly, especially when a camera or other accessories are added to the optical train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the DSD 210 plate to mount my DSLR with a telephoto lens on a Vixen-style mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a perfect use case. You can attach the DSD 210 plate to your lens's tripod collar or a camera L-bracket (which typically use Arca-Swiss), and then mount the entire assembly directly onto a Vixen-style saddle on a star tracker or equatorial mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the William Optics DSD 210 plate help with balancing my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 210 mm length allows you to slide the telescope within its tube rings along the plate's axis. This lets you find the precise center of gravity, ensuring the telescope is perfectly balanced on both the declination and right ascension axes of your mount. Proper balance is essential for accurate GoTo slewing and tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the DSD 210 plate compatible with Losmandy D-style saddles?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This plate is designed for the narrower Vixen (V-style) and Arca-Swiss standards. It is not physically compatible with the wider Losmandy (D-style) saddle clamps.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of the 41.5 mm width of the DSD 210 plate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 41.5 mm width provides a broad, stable base for mounting telescope tube rings. This width helps prevent any flexing or twisting between the rings and the plate, ensuring a rigid connection between your telescope and the mount.\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\u003eLength\u003c\/td\u003e\n\u003ctd\u003e210 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e41.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDovetail Type\u003c\/td\u003e\n\u003ctd\u003eVixen \u0026amp; Arca-Swiss Compatible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Colors\u003c\/td\u003e\n\u003ctd\u003eBlack, Red\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\"\u003eWilliam Optics DSD 210 Plate\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\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Black","offer_id":49328308683037,"sku":"WO-M-PRC210BL","price":65.0,"currency_code":"CAD","in_stock":true},{"title":"Red","offer_id":44967239581981,"sku":"WO-M-PRC210RD","price":66.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-DSD-210-Plate-M-PRC210-1__21165.1596133312.1280.1280.jpg?v=1684339396"},{"product_id":"william-optics-dsd-245-plate","title":"William Optics DSD 245 Plate","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eLength: 245 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 0.33 kg \/ 0.72 lbs\u003c\/li\u003e\n\u003cli\u003eDovetail Compatibility: Vixen \u0026amp; Arca-Swiss\u003c\/li\u003e\n\u003cli\u003eCNC-machined construction\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\u003eWilliam Optics DSD 245 Plate\u003c\/h2\u003e\n\u003cp\u003eThe William Optics DSD 245 Plate is a rigid, 245 mm mounting solution that natively fits both Vixen-style and Arca-Swiss saddles, eliminating the need for adapters. Measuring 43.5 mm wide and weighing just 0.33 kg (0.72 lbs), it adds secure, full-contact support to your optical tube without consuming valuable payload capacity.\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\u003eThe 245mm Vixen \u0026amp; Arca-Swiss Dual Saddle Plate\u003c\/h3\u003e\n\u003cp\u003eThis 245 mm plate is engineered with both the Vixen and Arca-Swiss dovetail profiles machined into a single, solid bar. This innovative dual-sided design allows you to move an optical tube assembly from a Vixen-style astronomical mount to a standard Arca-Swiss photographic tripod head in seconds, without ever changing the plate.\u003c\/p\u003e\n\u003cp\u003eThe integrated design ensures a secure, full-contact connection in either saddle type. This prevents the flexure and instability that can occur when stacking multiple adapters to bridge the two most common mounting standards in astronomy and photography.\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\u003eLightweight \u0026amp; Rigid at 0.33 kg\u003c\/h3\u003e\n\u003cp\u003eAt just 0.33 kg (0.72 lbs), the DSD 245 plate provides a solid mounting point for your hardware while preserving your mount's precious payload capacity for cameras and other accessories. Its 245 mm length offers ample surface area for secure tube ring placement, making it an ideal choice for balancing small to medium-sized refractors and other compact optical tubes.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength (245 mm):\u003c\/strong\u003e Provides excellent stability for refractors up to the 100mm class or for perfectly balancing smaller instruments.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight (0.33 kg):\u003c\/strong\u003e Keeps your total setup weight low, improving tracking accuracy and responsiveness from your mount.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCNC Machined:\u003c\/strong\u003e Guarantees a precise fit in any compatible saddle, providing a reliable and non-slip connection.\u003c\/li\u003e\n\u003c\/ul\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 types of telescopes work best with the William Optics DSD 245 Plate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eWilliam Optics DSD 245 Plate\u003c\/strong\u003e, with its 245 mm length, is ideally suited for small to medium-sized telescopes. This includes most short-tube refractors (like the William Optics RedCat or GT series), smaller Maksutov-Cassegrains, and camera lenses mounted via a lens collar.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the dual Vixen\/Arca-Swiss feature on the DSD 245 Plate benefit me?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary benefit of the \u003cstrong\u003eWilliam Optics DSD 245 Plate\u003c\/strong\u003e is its universal compatibility. You can attach your telescope to an astronomical mount with a Vixen-style saddle for night imaging, then quickly detach it and mount it on a photographic ball head with an Arca-Swiss clamp for daytime use, all without tools or adapters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 245 mm length of the DSD 245 Plate be sufficient for my William Optics GT81 refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 245 mm length of the \u003cstrong\u003eWilliam Optics DSD 245 Plate\u003c\/strong\u003e is an excellent match for a telescope like the GT81. It provides enough length to adjust the position of the tube rings for precise balancing, which is critical for accurate tracking, especially when adding a guide scope or heavy camera.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount the William Optics DSD 245 Plate directly to my camera for use with a telephoto lens?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, if your telephoto lens has a rotating tripod collar with standard 1\/4\"-20 mounting holes, you can attach the \u003cstrong\u003eWilliam Optics DSD 245 Plate\u003c\/strong\u003e. This setup allows you to mount a heavy lens and camera body securely on either a Vixen-style star tracker or a standard Arca-Swiss tripod head.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the benefit of the William Optics DSD 245 Plate's 0.33 kg weight?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAt only \u003cstrong\u003e0.33 kg (0.72 lbs)\u003c\/strong\u003e, the plate adds minimal weight to your imaging setup. This is crucial for smaller mounts and star trackers, as it leaves more of the mount's payload capacity available for your telescope, camera, and other accessories, leading to better tracking and stability.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the William Optics DSD 245 Plate compatible with all Vixen and Arca-Swiss clamps?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eWilliam Optics DSD 245 Plate\u003c\/strong\u003e is designed to standard Vixen and Arca-Swiss specifications and is compatible with the vast majority of clamps on the market. However, due to minor variations between manufacturers, it's always good practice to ensure the clamp can open wide enough to accept the 43.5 mm plate width.\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\u003eLength\u003c\/td\u003e\n\u003ctd\u003e245 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e43.5 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDovetail Type\u003c\/td\u003e\n\u003ctd\u003eVixen ↔ Arca-Swiss\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.33 kg \/ 0.72 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics DSD 245 Plate\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\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Red","offer_id":44967239680285,"sku":"WO-M-PRC245RD","price":80.0,"currency_code":"CAD","in_stock":true},{"title":"Black","offer_id":49863643201821,"sku":"WO-M-PRC245BL","price":71.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-DSD-245-Plate-M-PRC245-1__16399.1596133312.1280.1280.jpg?v=1684339639"},{"product_id":"william-optics-losmandy-style-type-d","title":"William Optics Losmandy Style Type D","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eLength: 400 mm\u003c\/li\u003e\n\u003cli\u003eWeight: 1.44 kg \/ 3.17 lbs\u003c\/li\u003e\n\u003cli\u003eWidth: 105 mm\u003c\/li\u003e\n\u003cli\u003eDovetail Type: Losmandy D-Style\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\u003eWilliam Optics Losmandy Style D-Type Dovetail Plate\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Losmandy Style D-Type Dovetail Plate provides a rigid, full-length mounting platform for large optical tubes, measuring 400 mm long and 105 mm wide. This plate is precision-machined from solid aluminum and weighs 1.44 kg (3.17 lbs), ensuring a secure connection to any Losmandy D-style saddle without adding excessive mass to your setup.\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\u003eA 400mm Foundation for Large Telescopes\u003c\/h3\u003e\n\u003cp\u003eAt 400 mm in length, this dovetail plate provides an extended platform essential for properly balancing larger Schmidt-Cassegrains, refractors, and astrographs. The long surface allows for greater separation between tube rings, minimizing mechanical flexure and providing multiple points of contact for a more stable and secure connection to your mount. This is critical for maintaining pointing accuracy and achieving sharp, round stars during long exposures.\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\u003eSignature William Optics Build: 1.44 kg of Anodized Aluminum\u003c\/h3\u003e\n\u003cp\u003eEngineered to be both strong and lightweight, this plate weighs just 1.44 kg (3.17 lbs), preserving your mount's precious payload capacity for heavier cameras and accessories. True to the William Optics standard, the plate is finished with a durable, high-quality anodization that resists scratches and corrosion. Available in signature colors including Gold, Red, and Grey, it adds a custom aesthetic to your imaging rig while delivering uncompromising mechanical integrity.\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 types of telescopes is the 400mm William Optics Losmandy plate designed for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e400 mm length\u003c\/strong\u003e is ideal for larger optical tubes, typically refractors of 130mm aperture and above, or Schmidt-Cassegrains (SCTs) of 9.25\" or larger. It provides the necessary length to space tube rings far apart, which is critical for preventing flexure and achieving a precise balance with heavy imaging trains.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the William Optics D-Plate fit my non-William Optics mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This plate is manufactured to the industry-standard \u003cstrong\u003eLosmandy D-style specification\u003c\/strong\u003e. It is compatible with any mount saddle designed to accept \"D\" style plates, regardless of the mount manufacturer (e.g., Sky-Watcher, Celestron, iOptron, Software Bisque).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of this 400mm William Optics plate over a shorter dovetail?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA longer dovetail offers two main advantages. First, it provides a wider range of balancing positions, making it easier to accommodate different accessory loads (e.g., guide scopes, filter wheels, heavy cameras). Second, by allowing tube rings to be mounted further apart, it creates a more rigid mechanical connection that significantly reduces tube flexure, leading to better imaging results.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much does the William Optics Losmandy plate weigh?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe plate weighs \u003cstrong\u003e1.44 kg (3.17 lbs)\u003c\/strong\u003e. This weight is a deliberate balance between providing the structural rigidity needed for heavy telescopes and conserving your mount's total payload capacity for other equipment.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the William Optics Losmandy plate include mounting screws for my telescope rings?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eMounting hardware is typically supplied with your telescope tube rings, not the dovetail plate. This plate features multiple pre-drilled and threaded holes to accommodate a wide variety of ring spacings, but you will need to use the screws that came with your specific rings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this William Optics plate suitable for a dual-scope setup on my Celestron CGX-L mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The \u003cstrong\u003e400 mm length\u003c\/strong\u003e and \u003cstrong\u003e105 mm width\u003c\/strong\u003e provide ample surface area to mount a primary OTA and a secondary guide scope or wide-field refractor side-by-side using a separate side-by-side saddle. Its Losmandy D-style profile is a perfect fit for the CGX-L's dual saddle plate.\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\u003eDovetail Type\u003c\/td\u003e\n\u003ctd\u003eLosmandy (D-Style)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e400 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e105 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e1.44 kg \/ 3.17 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics Losmandy D-Type Dovetail 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\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cp\u003eNo downloads are available for this product.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Gold","offer_id":44967239844125,"sku":"WO-M-PSGD","price":192.0,"currency_code":"CAD","in_stock":true},{"title":"Red","offer_id":44967239876893,"sku":"WO-M-PSRD","price":192.0,"currency_code":"CAD","in_stock":true},{"title":"Grey","offer_id":44967239909661,"sku":"WO-M-PSTG","price":167.0,"currency_code":"CAD","in_stock":true},{"title":"Black","offer_id":52839974306077,"sku":"WO-M-PSBL","price":192.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Losmandy-Style-Type-D-Swan-Series-M-PS-1__67955.1596133313.1280.1280.jpg?v=1684339646"},{"product_id":"william-optics-long-version-vixen-style-dovetail-plate","title":"William Optics Long Version Vixen-Style Dovetail Plate","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e290 mm Extended Length for Balancing\u003c\/li\u003e\n\u003cli\u003eStandard Vixen-Style Dovetail Profile\u003c\/li\u003e\n\u003cli\u003eWeighs 0.64 kg (1.42 lbs)\u003c\/li\u003e\n\u003cli\u003e90 mm Wide Platform for Stability\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\u003eWilliam Optics Long Version Vixen-Style Dovetail Plate\u003c\/h2\u003e\n\u003cp\u003eThe William Optics Long Version Vixen-Style Dovetail Plate provides a rigid, 290 mm mounting platform essential for achieving perfect balance with demanding optical setups. Weighing just 0.64 kg (1.42 lbs), this 90 mm wide plate adds minimal mass to your payload while delivering the leverage needed to counteract heavy camera trains or large objective lenses on any Vixen-style mount.\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\u003e290 mm Length for Precision Balancing\u003c\/h3\u003e\n\u003cp\u003eThe primary challenge with long refractors or SCTs loaded with imaging gear is achieving a precise center of gravity. The 290 mm length of this William Optics plate provides an extensive range of adjustment, allowing you to slide your entire optical tube assembly forward or backward in the saddle to find the perfect balance point. This eliminates the need to constantly reposition tube rings, which is often impossible mid-session.\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\u003eA Rigid 0.64 kg Foundation for Vixen-Style Mounts\u003c\/h3\u003e\n\u003cp\u003eEngineered for Vixen-style saddles, this dovetail plate creates a secure, flex-free connection between your telescope and mount. At 0.64 kg, it has enough mass to ensure rigidity across its full 290 mm span, preventing vibrations that can ruin an exposure. The 90 mm width offers a broad, stable base for your telescope's tube rings, further enhancing stability.\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\u003eWhy a 290 mm Plate Beats a Standard Dovetail\u003c\/h3\u003e\n\u003cp\u003eMany telescopes ship with short, basic dovetail plates that are inadequate for anything beyond simple visual use. This 290 mm plate is a critical upgrade for imagers and observers with complex setups.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eExtended Balancing Range:\u003c\/strong\u003e A standard plate might offer only an inch or two of adjustment. The 290 mm length gives you a significantly wider balancing window, accommodating heavy accessories like cameras, filter wheels, and guide scopes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccessory Mounting Space:\u003c\/strong\u003e The additional length provides valuable real estate for mounting secondary accessories like a guide scope or finder scope, keeping them clear of your primary tube rings.\u003c\/li\u003e\n\u003c\/ul\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 is the main advantage of the William Optics 290 mm Vixen dovetail plate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is its \u003cstrong\u003e290 mm length\u003c\/strong\u003e. This provides significantly more travel for sliding your telescope within the mount's saddle, making it far easier to achieve perfect balance, especially with front-heavy or back-heavy equipment combinations.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the William Optics Long Vixen Plate help balance my 8\" SCT with a heavy camera?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. An SCT with a camera, focal reducer, and filter wheel is very back-heavy. The 290 mm length allows you to slide the entire optical tube much farther forward in the saddle to counteract that weight and achieve proper balance on both axes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the William Optics Long Vixen Plate compatible with Losmandy-style clamps?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This plate is specifically designed with a \u003cstrong\u003eVixen-style\u003c\/strong\u003e profile. It will only fit in Vixen or dual Vixen\/Losmandy saddles. It is not compatible with mounts that use a Losmandy-D style clamp exclusively.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eI have a William Optics refractor. Is this 290 mm plate a good choice for my Vixen-style mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is an excellent choice for balancing William Optics refractors, especially those with larger objectives or when using a heavy flattener and camera. The 290 mm length gives you the leverage needed to balance the front-heavy nature of a refractor on a Vixen-style mount like the Celestron AVX or Sky-Watcher HEQ5.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow much does the William Optics Long Vixen Plate weigh?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe plate weighs \u003cstrong\u003e0.64 kg (1.42 lbs)\u003c\/strong\u003e. This weight is a critical part of its design, ensuring it remains rigid and does not flex under the load of a telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount guide scope rings to the William Optics Long Vixen Plate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 290 mm length provides ample surface area for mounting accessories between your main tube rings. However, successful mounting depends on the specific hole and slot pattern of the plate matching your guide scope rings' hardware.\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\u003eLength\u003c\/td\u003e\n\u003ctd\u003e290 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDovetail Type\u003c\/td\u003e\n\u003ctd\u003eVixen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.64 kg \/ 1.42 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics Long Version Vixen-Style Dovetail Plate\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\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967239942429,"sku":"WO-M-PV-LII-RD","price":131.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-Long-Version-Vixen-Style-Dovetail-Plate-M-PV-LII-1__82498.1596133315.1280.1280.jpg?v=1684339399"},{"product_id":"william-optics-vixen-style-8-dovetail-plate-black","title":"William Optics Vixen-Style 8\" Dovetail Plate - Black","description":"\u003cul\u003e\n\t\u003cli\u003e\nDesigned to fit Vixen-style dovetail mounts\n\t\u003c\/li\u003e\n\t\u003cli\u003e\nEnsures durability and a lightweight design.\n\t\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\t\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\t\u003cli class=\"active\"\u003e\n\t\t\u003cp\u003e\nThe William Optics Vixen-Style 8\" Dovetail Plate in black is a versatile accessory designed for mounting telescopes and other optical equipment. This plate is compatible with Vixen-style dovetail mounts, which are widely used in the astronomy community for their reliability and ease of use.\n\t\t\u003c\/p\u003e\n\t\t\u003cdiv class=\"warning\"\u003e\n\t\t\t\u003cimg alt=\"Disclaimer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/warning-logo.svg?v=1714663206\" width=\"25px\"\u003e\n\t\t\t\u003cp\u003e\nDesigned to fit Vixen-style dovetail mounts\n\t\t\t\u003c\/p\u003e\n\t\t\u003c\/div\u003e\n\t\t\n\t\t\u003cdiv\u003e\n\t\t\t\u003ch3\u003e\nCompatibility\n\t\t\t\u003c\/h3\u003e\n\t\t\t\u003chr\u003e\n\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\u003cp\u003e\nDesigned to fit Vixen-style dovetail mounts, making it suitable for a wide range of telescopes and mounts.\n\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\u003cimg alt=\"\nWilliam Optics Vixen-Style 8inch Dovetail Plate - Black\n\t\t\t\t\t\t\t\" src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-Vixen-Style-8-inch-Dovetail-Plate-Black-M-PVB-4__47241.1596133316.1280.1280_1028x1028.jpg?v=1684339429%0A\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\n\t\t\t\u003cdiv data-mce-style=\"backgroundcolor: #0a0001; border-radius: 5px;\" style=\"background-color: #0a0001; border-radius: 5px;\"\u003e\n\t\t\t\t\u003ch3 style=\"color: white!important;\"\u003e\nLength\n\t\t\t\t\u003c\/h3\u003e\n\t\t\t\t\u003chr\u003e\n\t\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\t\u003cimg alt=\"\nWilliam Optics Vixen-Style 8inch Dovetail Plate - Black\n\t\t\t\t\t\t\t\t\" src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-Vixen-Style-8-inch-Dovetail-Plate-Black-M-PVB-1__70333.1596133316.1280.1280_832x832.jpg?v=1684339429%0A\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\t\u003cp style=\"color: white!important;\"\u003e\nAt 8 inches, this dovetail plate provides a secure and stable connection for your telescope or optical equipment.\n\t\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\t\t\u003c\/div\u003e\n\n\t\t\u003ch3\u003eMaterial\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nTypically made from high-quality aluminum, which ensures durability and a lightweight design.\n\t\t\u003c\/p\u003e\n\t\t\u003cdiv style=\"text-align: left;\"\u003e\n\t\t\t\u003cimg alt=\"\nWilliam Optics Vixen-Style 8inch Dovetail Plate - Black\n\t\t\t\t\" src=\"https:\/\/davidastro.com\/cdn\/shop\/products\/William-Optics-Vixen-Style-8-inch-Dovetail-Plate-Black-M-PVB-2__37197.1596133316.1280.1280_832x832.jpg?v=1684339429%0A\" style=\"margin-right: -74px; margin-bottom: 16px; float: none;\"\u003e\n\t\t\u003c\/div\u003e\n\t\t\n\t\t\u003ch3\u003e\nColor\n\t\t\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nThe black finish not only adds a stylish touch but also makes it easy to locate in low-light conditions often encountered during nighttime observations.\n\t\t\u003c\/p\u003e\n\t\t\n\t\t\u003ch3\u003e\nDesign\n\t\t\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\n Precision-machined for a secure fit and stability, with pre-drilled holes to accommodate different mounting requirements.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003e\nEase of Use\n\t\t\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nSimple to attach and detach, allowing for quick setup and breakdown of your equipment.\n\t\t\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967239975197,"sku":"WO-M-PVB","price":56.0,"currency_code":"CAD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Vixen-Style-8-inch-Dovetail-Plate-Black-M-PVB-1__70333.1596133316.1280.1280.jpg?v=1684339429"},{"product_id":"william-optics-vixen-style-8-dovetail-plate-red","title":"William Optics Vixen-Style 8\" Dovetail Plate - Red","description":"\u003cul\u003e\n\t\u003cli\u003e\nDesigned to fit Vixen-style dovetail mounts\n\t\u003c\/li\u003e\n\t\u003cli\u003e\nEnsures durability and a lightweight design.\n\t\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\t\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cul class=\"tabs-content\"\u003e\n\t\u003cli class=\"active\"\u003e\n\t\t\u003cp\u003e\nThe William Optics Vixen-Style 8\" Dovetail Plate in red is a versatile accessory designed for mounting telescopes and other optical equipment. This plate is compatible with Vixen-style dovetail mounts, which are widely used in the astronomy community for their reliability and ease of use.\n\t\t\u003c\/p\u003e\n\t\t\u003cdiv class=\"warning\"\u003e\n\t\t\t\u003cimg alt=\"Disclaimer\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/warning-logo.svg?v=1714663206\" width=\"25px\"\u003e\n\t\t\t\u003cp\u003e\nDesigned to fit Vixen-style dovetail mounts\n\t\t\t\u003c\/p\u003e\n\t\t\u003c\/div\u003e\n\t\t\n\t\t\u003cdiv\u003e\n\t\t\t\u003ch3\u003e\nCompatibility\n\t\t\t\u003c\/h3\u003e\n\t\t\t\u003chr\u003e\n\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\u003cp\u003e\nDesigned to fit Vixen-style dovetail mounts, making it suitable for a wide range of telescopes and mounts.\n\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\u003cimg alt=\"\nWilliam Optics Vixen-Style 8inch Dovetail Plate - Red\n\t\t\t\t\t\t\t\" src=\"https:\/\/davidastro.com\/cdn\/shop\/files\/William-Optics-Vixen-Style-8-inch-Dovetail-Plate-Red-M-PVR-7__66873.1596133318.1280.1280_832x832.jpg?v=1684339441%0A%09%09%09%09%09%09%09\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\n\t\t\t\u003cdiv data-mce-style=\"backgroundcolor: #0a0001; border-radius: 5px;\" style=\"background-color: #0a0001; border-radius: 5px;\"\u003e\n\t\t\t\t\u003ch3 style=\"color: white!important;\"\u003e\nLength\n\t\t\t\t\u003c\/h3\u003e\n\t\t\t\t\u003chr\u003e\n\t\t\t\t\u003cdiv class=\"two-columns-section\"\u003e\n\t\t\t\t\t\u003cdiv class=\"image-side-2\" data-mce-style=\"text-align: start;\" style=\"text-align: start;\"\u003e\n\t\t\t\t\t\t\u003cimg alt=\"\nWilliam Optics Vixen-Style 8inch Dovetail Plate - Red\n\t\t\t\t\t\t\t\t\" src=\"https:\/\/davidastro.com\/cdn\/shop\/files\/William-Optics-Vixen-Style-8-inch-Dovetail-Plate-Red-M-PVR-2__93934.1596133318.1280.1280_832x832.jpg?v=1684339433%0A%09%09%09%09%09%09%09%09\" style=\"margin-bottom: 16px; float: none;\"\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\t\u003cdiv class=\"text-side-2\"\u003e\n\t\t\t\t\t\t\u003cp style=\"color: white!important;\"\u003e\nAt 8 inches, this dovetail plate provides a secure and stable connection for your telescope or optical equipment.\n\t\t\t\t\t\t\u003c\/p\u003e\n\t\t\t\t\t\u003c\/div\u003e\n\t\t\t\t\u003c\/div\u003e\n\t\t\t\u003c\/div\u003e\n\t\t\u003c\/div\u003e\n\n\t\t\u003ch3\u003eMaterial\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nTypically made from high-quality aluminum, which ensures durability and a lightweight design.\n\t\t\u003c\/p\u003e\n\t\t\u003cdiv style=\"text-align: left;\"\u003e\n\t\t\t\u003cimg alt=\"\nWilliam Optics Vixen-Style 8inch Dovetail Plate - Red\n\t\t\t\t\" src=\"https:\/\/davidastro.com\/cdn\/shop\/files\/William-Optics-Vixen-Style-8-inch-Dovetail-Plate-Red-M-PVR-1__18737.1596133318.1280.1280_832x832.jpg?v=1684339431%0A%09%09%09%09\" style=\"margin-right: -74px; margin-bottom: 16px; float: none;\"\u003e\n\t\t\u003c\/div\u003e\n\t\t\n\t\t\u003ch3\u003e\nColor\n\t\t\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nThe red finish not only adds a stylish touch but also makes it easy to locate in low-light conditions often encountered during nighttime observations.\n\t\t\u003c\/p\u003e\n\t\t\n\t\t\u003ch3\u003e\nDesign\n\t\t\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\n Precision-machined for a secure fit and stability, with pre-drilled holes to accommodate different mounting requirements.\n\t\t\u003c\/p\u003e\n\n\t\t\u003ch3\u003e\nEase of Use\n\t\t\u003c\/h3\u003e\n\t\t\u003chr\u003e\n\t\t\u003cp\u003e\nSimple to attach and detach, allowing for quick setup and breakdown of your equipment.\n\t\t\u003c\/p\u003e\n\t\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967240007965,"sku":"WO-M-PVR","price":56.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/William-Optics-Vixen-Style-8-inch-Dovetail-Plate-Red-M-PVR-1__18737.1596133318.1280.1280.jpg?v=1684339431"},{"product_id":"william-optics-mounting-rings-90mm","title":"William Optics Mounting Rings 90mm","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003ePrecise 90mm Inner Diameter\u003c\/li\u003e\n\u003cli\u003eSolid, All-Metal Construction\u003c\/li\u003e\n\u003cli\u003eSecures Optical Tube for Astrophotography\u003c\/li\u003e\n\u003cli\u003eRequires User Measurement for Fit Confirmation\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\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\u003eWilliam Optics Mounting Rings 90mm\u003c\/h2\u003e\n      \u003cp\u003eThe William Optics 90mm Mounting Rings are engineered for a single purpose: to provide an exact, zero-tolerance fit for telescope tubes with a 90mm outer diameter. This precise fit is non-negotiable for stable astrophotography, as a mismatch of even 1-2mm can introduce flexure and ruin your alignment.\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 Precise 90mm Fit: The Critical Role of Accurate Measurement\u003c\/h3\u003e\n      \u003cp\u003eThese rings are machined to a specific 90mm inner diameter and are not designed to accommodate variations. An optical tube that is even slightly larger will not fit. This rigidity is a feature, not a limitation, as it ensures your telescope is held securely without any possibility of shifting during an imaging session or slew.\u003c\/p\u003e\n      \u003cp\u003eBefore ordering, it is essential that you physically measure the outer diameter of your telescope tube with calipers. Do not rely on manufacturer-stated specifications, which can change between production runs. Confirmation of the 90mm dimension is the buyer's responsibility to guarantee compatibility.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\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\"\u003eWill the William Optics 90mm rings fit my telescope tube that measures 91mm?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo. The William Optics 90mm rings are machined for a precise fit and have no tolerance for oversized tubes. If your telescope's outer diameter exceeds 90mm, even by 1-2mm, these rings will not fit.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow should I measure my telescope for the William Optics 90mm rings?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eFor the most accurate measurement, use a set of digital or dial calipers. Measure the outer diameter of the main optical tube in several places to ensure it is consistently 90mm. Do not rely on specifications found online or in manuals, as these can vary from the actual product.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use these 90mm rings to mount a William Optics Guide Star 61 guide scope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYou must measure the physical outer diameter of your specific Guide Star 61. While the model name suggests a certain aperture, the tube's outer diameter can be different. We do not maintain compatibility lists; a direct measurement of your equipment is the only way to confirm the 90mm requirement.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI plan to mount a 90mm finder scope on my main telescope. What else do I need besides these William Optics rings?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThese 90mm rings will hold the finder scope tube itself. To attach them to your main telescope, you will need a dovetail bar (sold separately) that is compatible with both the rings and your main telescope's mounting points or saddle. Mounting hardware to attach the rings to the bar is also typically sold separately.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is such a tight tolerance important for the William Optics 90mm rings?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eA precise, non-slip fit is critical for astrophotography. Any play or movement between the rings and the optical tube can cause image shift, trailing stars, and loss of guiding accuracy. The rigid 90mm design ensures the optical tube and any attached guide scope remain perfectly aligned with the mount throughout the night.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eAre the screws for attaching the William Optics 90mm rings to a dovetail bar included?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eNo. Mounting hardware is generally not included. The type and length of screws required depend on the specific dovetail bar you are using, so you will need to source the appropriate screws for your setup separately.\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\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eWO-M-M80R-B\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eInner Diameter\u003c\/td\u003e\n\u003ctd\u003e90 mm\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\"\u003e90mm Mounting Rings\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1 pair\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967240827165,"sku":"WO-M-M80R-B","price":246.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Mounting-Rings-90mm-M-M80R-B-1__80209.1596133324.1280.1280.jpg?v=1684339664"},{"product_id":"william-optics-cat-mounting-ring","title":"William Optics Cat Mounting Ring","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e50mm Inner Diameter\u003c\/li\u003e\n\u003cli\u003eSolid Aluminum Construction\u003c\/li\u003e\n\u003cli\u003eAnodized Blue Finish\u003c\/li\u003e\n\u003cli\u003e1\/4\"-20 Threaded Mounting Holes\u003c\/li\u003e\n\u003cli\u003eWeight: 4.9 oz (140 g)\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\u003eWilliam Optics Cat Mounting Ring\u003c\/h2\u003e\n      \u003cp\u003eThe William Optics Cat Mounting Ring is a secure, custom-fit mounting point for telescope tubes with a precise 50mm outer diameter. Machined from solid aluminum and weighing just 4.9 oz (140 g), it adds minimal weight while offering standard 1\/4\"-20 threaded holes for attaching to dovetail bars or other accessories.\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\u003ePrecision-Machined for a 50mm Tube Diameter\u003c\/h3\u003e\n      \u003cp\u003eThis is not a one-size-fits-most solution. The William Optics Cat ring is engineered for an exact 50mm tube diameter, ensuring a rigid, non-slip connection without marring your telescope's finish. The solid aluminum construction prevents the flexure that can ruin a long exposure when using the ring for a guide scope.\u003c\/p\u003e\n      \u003cp\u003eBecause the fit is so precise, you must verify your telescope's dimensions before purchasing. These rings are manufactured with zero tolerance for tubes larger than 50mm—even a 1mm difference will prevent a fit. We strongly advise using calipers to measure your optical tube directly rather than relying on published specifications, which can change between production runs.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eSolid Aluminum Construction:\u003c\/strong\u003e Machined from a single block for maximum rigidity and zero flexure, weighing only 4.9 oz (140 g).\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e50mm Inner Diameter:\u003c\/strong\u003e Designed for a perfect, non-marring fit on telescope tubes with an exact 50mm outer diameter.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eAnodized Blue Finish:\u003c\/strong\u003e Provides a durable, corrosion-resistant surface that matches William Optics' distinctive aesthetic.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003e1\/4\"-20 Mounting Holes:\u003c\/strong\u003e Offers standard threading for secure attachment to Vixen or Losmandy style dovetail plates.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\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\"\u003eWill the William Optics Cat Mounting Ring fit my telescope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis ring is designed exclusively for any optical tube with an \u003cstrong\u003eexact 50mm outer diameter\u003c\/strong\u003e. Because manufacturer specifications can change without notice, you must physically measure your telescope's tube with calipers to confirm the size before purchasing. Do not rely on published specs alone.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eMy telescope tube is 51mm. Can I make the William Optics 50mm ring fit?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003e\u003cstrong\u003eAbsolutely not.\u003c\/strong\u003e The ring has a precise 50mm inner diameter with no tolerance for larger tubes. Attempting to force it onto a 51mm tube will damage the ring, your telescope's finish, or both. You must have an exact 50mm tube for this ring to fit correctly.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the William Optics Cat Mounting Ring sold as a single unit or a pair?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe William Optics Cat Mounting Ring is sold as a \u003cstrong\u003esingle unit\u003c\/strong\u003e. If you need a pair to mount a longer optical tube or a guide scope, you will need to purchase a quantity of two.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI'm building a custom guide scope setup with a 50mm finder. Is this William Optics ring a good choice?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, this is an excellent application. The ring's solid aluminum build provides a rigid, flex-free platform for a 50mm guide scope, ensuring there is no differential flexure between your main telescope and your autoguiding system during an imaging session.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the mounting holes on the William Optics Cat ring for?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe ring features standard \u003cstrong\u003e1\/4\"-20 threaded holes\u003c\/strong\u003e. This is the most common thread size in photography and astronomy, allowing you to attach the ring securely to most Vixen-style or Losmandy-style dovetail plates, as well as other astronomical accessories.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the William Optics Cat Mounting Ring made of?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIt is machined from a single piece of \u003cstrong\u003esolid aluminum\u003c\/strong\u003e and features a durable, anodized blue finish. This construction ensures it is both lightweight at just 4.9 oz (140 g) and extremely rigid.\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\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eWO-M-MR50RC-BL\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eInner Diameter\u003c\/td\u003e\n\u003ctd\u003e50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eSolid Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eAnodized Blue\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMounting Holes\u003c\/td\u003e\n\u003ctd\u003e1\/4\"-20 Threaded\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e4.9 oz (140 g)\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\"\u003e50mm Cat Mounting Ring\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\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967241318685,"sku":"WO-M-MR50RC-BL","price":69.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Cat-Mounting-Ring-M-MR50RC-BL-1__75660.1596133325.1280.1280.jpg?v=1684339670"},{"product_id":"william-optics-120mm-saddle-handle-bar","title":"William Optics 120mm Saddle Handle Bar","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e120 mm Length\u003c\/li\u003e\n\u003cli\u003e44 mm Width\u003c\/li\u003e\n\u003cli\u003eIntegrated Mini-Vixen Style Saddle\u003c\/li\u003e\n\u003cli\u003ePatented Handlebar Design\u003c\/li\u003e\n\u003cli\u003eLightweight and Durable Construction\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\u003eWilliam Optics 120mm Saddle Handle Bar\u003c\/h2\u003e\n\u003cp\u003eThe William Optics 120mm Saddle Handle Bar combines a secure, 120 mm long carrying handle with an integrated Mini-Vixen style saddle for mounting accessories. This patented, dual-purpose design measures 44 mm in width, providing a stable and compact platform for guide scopes, finders, or other small instruments without adding unnecessary bulk to your optical tube assembly.\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\u003ePatented Dual-Function Design: 120mm Handle and Saddle\u003c\/h3\u003e\n\u003cp\u003eThis handle bar is more than just an ergonomic way to carry your telescope; its patented design integrates a functional saddle directly into the handle. The 120 mm length is ideal for smaller refractors, offering a balanced grip point for transport and setup. The top of the handle is a fully functional Mini-Vixen saddle, allowing you to mount a guide scope or finder scope directly onto the optical tube's existing handle mounting points.\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\u003eA Compact 44mm Wide Mounting Platform\u003c\/h3\u003e\n\u003cp\u003eEngineered for stability, the handle's 44 mm width provides a solid base for any attached accessory. This prevents the flexure and vibration that can plague narrower or less rigid mounting systems, which is critical for autoguiding. The Mini-Vixen dovetail standard is compatible with a wide range of popular guide scopes and finder brackets, making this handle a seamless upgrade for your imaging rig.\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 is the primary purpose of the William Optics 120mm Saddle Handle Bar?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe William Optics 120mm Saddle Handle Bar serves two functions. First, it acts as a secure handle to make carrying and mounting your telescope safer and easier. Second, its integrated \u003cstrong\u003eMini-Vixen saddle\u003c\/strong\u003e provides a convenient mounting point for accessories like guide scopes, finder scopes, or small cameras.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of accessories can I mount on the Mini-Vixen saddle of the 120mm Handle Bar?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Mini-Vixen saddle is designed for lightweight accessories that use a Mini-Vixen or small V-style dovetail bar. This typically includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGuide Scopes:\u003c\/strong\u003e Compact guide scopes like the William Optics 32mm UniGuide or ZWO Mini Guide Scope.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFinder Scopes:\u003c\/strong\u003e Most red-dot finders and optical finder scopes that come with a V-style mounting foot.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSmall Cameras:\u003c\/strong\u003e A small camera with a V-style dovetail plate for wide-field shots.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the William Optics 120mm Saddle Handle Bar fit my non-William Optics telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eCompatibility depends on the mounting hole spacing on your telescope's tube rings or top plate. You will need to measure the distance between the mounting holes on your specific telescope to ensure they match the hole pattern on the 120mm handle bar. It is designed to be a direct fit for many William Optics telescopes but can be adapted to others with the correct spacing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 120mm length of this handle bar affect balancing a small refractor like a RedCat 51?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor a compact telescope like a RedCat 51, the 120mm length is ideal. It provides a solid mounting platform for a guide scope without being excessively long, which helps maintain the telescope's balance on the mount. The added weight of the handle and a guide scope is minimal and can easily be compensated for by adjusting the telescope's position in its saddle plate.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill a standard Vixen-style dovetail bar fit in the Mini-Vixen saddle on the 120mm Handle Bar?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this is an important distinction. The saddle is a \u003cstrong\u003eMini-Vixen\u003c\/strong\u003e type, which is smaller than the standard Vixen (V-style) dovetail bars used for mounting telescopes. It is designed for the narrower dovetails found on finder scopes and dedicated guide scopes, not for full-sized optical tubes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the William Optics 120mm Saddle Handle Bar to mount a guide scope for imaging the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The handle provides a rigid platform for a guide scope, which is essential for the long exposures needed to capture faint details in targets like the Andromeda Galaxy (M31). The 44mm width ensures there is no flex, leading to sharper stars in your final image.\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\u003eLength\u003c\/td\u003e\n\u003ctd\u003e120 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e44 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDovetail Type\u003c\/td\u003e\n\u003ctd\u003eMini-Vixen\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\"\u003eWilliam Optics 120mm Saddle Handle Bar\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\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967241351453,"sku":"WO-M-HC120BL","price":66.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-120mm-Saddle-Handle-Bar-M-HC120BL-1__96084.1596133326.1280.1280.jpg?v=1684339678"},{"product_id":"william-optics-243mm-saddle-handle-bar","title":"William Optics 243mm Saddle Handle Bar","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e243mm total length\u003c\/li\u003e\n\u003cli\u003eFunctions as both a carrying handle and an accessory saddle\u003c\/li\u003e\n\u003cli\u003ePatented design for rigidity and ergonomics\u003c\/li\u003e\n\u003cli\u003eVixen-style saddle for mounting guide scopes and other accessories\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\u003eWilliam Optics 243mm Saddle Handle Bar\u003c\/h2\u003e\n\u003cp\u003eThe William Optics 243mm Saddle Handle Bar integrates a secure carrying handle and a Vixen-style accessory rail into a single, patented component. This 243mm bar is engineered to improve the portability of your telescope while simultaneously providing a rigid platform for mounting essential imaging gear like guide scopes and finder scopes.\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\u003eA 243mm Platform for Portability and Accessories\u003c\/h3\u003e\n\u003cp\u003eThis dual-function bar solves two common setup challenges. As a handle, it offers a balanced and secure grip, making it safer and easier to transport your optical tube and attach it to the mount. This minimizes the risk of accidental drops and reduces strain on the focuser or dovetail bar, which should never be used as lifting points.\u003c\/p\u003e\n\u003cp\u003eAs an accessory mount, the top features a Vixen-style saddle clamp. The generous 243mm length provides ample room to position a guide scope, finder, or other accessories, allowing you to achieve perfect balance without compromising on your imaging train configuration. This patented William Optics design ensures a solid, flex-free connection for your equipment.\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 is the primary benefit of the William Optics 243mm Saddle Handle Bar?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIts main benefit is combining two essential functions into one accessory. It provides a \u003cstrong\u003esafe, ergonomic handle\u003c\/strong\u003e for carrying your telescope and a \u003cstrong\u003erigid, 243mm Vixen-style saddle\u003c\/strong\u003e for mounting guide scopes or other accessories, saving space and adding convenience.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of accessories can I mount on the William Optics 243mm Saddle Handle?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Vixen-style saddle is designed to accept any accessory that uses a standard Vixen dovetail bar. This commonly includes:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGuide scopes\u003c\/li\u003e\n\u003cli\u003eFinder scopes\u003c\/li\u003e\n\u003cli\u003eSmall piggyback cameras with dovetail plates\u003c\/li\u003e\n\u003cli\u003eOn-board computer systems (like the ZWO ASIAIR)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 243mm length of this William Optics handle help with balancing my telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 243mm length allows you to slide your mounted accessories forward or backward along the bar. This provides significant leverage for making fine balance adjustments, which is critical for accurate tracking and guiding during long-exposure astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the William Optics 243mm handle fit my non-William Optics telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eCompatibility depends on the mounting hole spacing on your telescope's tube rings or optical tube. William Optics uses standard hole patterns, but you should always measure the distance between the mounting holes on your specific telescope to ensure it matches the handle bar before purchasing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the saddle on the William Optics 243mm bar compatible with Losmandy-style plates?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this handle bar features a \u003cstrong\u003eVixen-style saddle clamp\u003c\/strong\u003e only. It is not compatible with the wider Losmandy \"D-style\" plates.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 243mm length of the William Optics handle suitable for all telescopes?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the 243mm length is ideal for most refractors and smaller catadioptric telescopes, it may be oversized for very short or compact optical tubes. We recommend measuring the top of your telescope to confirm that the handle will fit without overhanging excessively.\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\u003eSKU\u003c\/td\u003e\n\u003ctd\u003eWO-M-HC243BL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLength\u003c\/td\u003e\n\u003ctd\u003e243mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFunction\u003c\/td\u003e\n\u003ctd\u003eCarry Handle \u0026amp; Accessory Saddle\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSaddle Type\u003c\/td\u003e\n\u003ctd\u003eVixen-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDesign\u003c\/td\u003e\n\u003ctd\u003ePatented\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\"\u003eWilliam Optics 243mm Saddle Handle Bar\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\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":44967243383069,"sku":"WO-M-HC243BL","price":149.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-243mm-Saddle-Handle-Bar-M-HC243BL-1__83514.1596133329.1280.1280.jpg?v=1684339692"},{"product_id":"william-optics-cat-series-saddle-handle-bar","title":"William Optics Cat Series Saddle Handle Bar","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eLength: 107 mm\u003c\/li\u003e\n\u003cli\u003eIntegrated Mini-Vixen Style Saddle\u003c\/li\u003e\n\u003cli\u003eWeight: 0.12 kg \/ 0.26 lbs\u003c\/li\u003e\n\u003cli\u003eDesigned for William Optics Cat Series Telescopes\u003c\/li\u003e\n\u003cli\u003eAdds a carrying handle and accessory mounting point\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\u003eWilliam Optics Cat Series Saddle Handle Bar\u003c\/h2\u003e\n\u003cp\u003eAdd a secure grip and a vital accessory mounting point to your William Optics Cat series telescope with the Cat Series Saddle Handle Bar, a compact 107 mm bar that integrates a Mini-Vixen style saddle and weighs just 0.12 kg (0.26 lbs). This handle is engineered to perfectly complement the fit, finish, and portability of your Cat series refractor, adding significant functionality without compromising your setup's balance.\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\u003eA 107mm Handle with an Integrated Mini-Vixen Saddle\u003c\/h3\u003e\n\u003cp\u003eThis handle bar is a dual-purpose upgrade for your portable imaging rig. The integrated Mini-Vixen saddle provides a secure and convenient mounting point for guide scopes, finderscopes, or other small accessories, keeping your setup compact and organized. At just 107 mm in length and 44 mm in width, it fits perfectly on William Optics Cat series refractors without adding unnecessary bulk or weight.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Purpose Design:\u003c\/strong\u003e Combines a sturdy, comfortable carrying handle with a functional Mini-Vixen saddle for accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLightweight Construction:\u003c\/strong\u003e Weighs only 0.12 kg (0.26 lbs), preserving the critical balance of your portable telescope setup on a star tracker or small mount.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Form Factor:\u003c\/strong\u003e The 107 mm length is scaled specifically for the compact optical tubes of the RedCat, SpaceCat, and WhiteCat telescopes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Accessory Mounting:\u003c\/strong\u003e The Mini-Vixen saddle is the industry standard for lightweight accessories, making it ideal for attaching guide scopes like the William Optics UniGuide or other compatible finders.\u003c\/li\u003e\n\u003c\/ul\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 telescopes is the William Optics Cat Series Saddle Handle Bar designed for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis handle bar is specifically designed to match the mounting points and aesthetics of the William Optics \"Cat\" series of petzval refractors, including the RedCat, SpaceCat, and WhiteCat models.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of accessories can I mount on the Cat Series Handle Bar's saddle?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe integrated \u003cstrong\u003eMini-Vixen style saddle\u003c\/strong\u003e is perfect for mounting lightweight accessories that use a corresponding dovetail bar. This typically includes guide scopes (such as the 32mm or 50mm William Optics UniGuide), red dot finders, or other small pointing devices.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the Cat Series Handle Bar affect the balance of my RedCat 51 on a portable mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAt just \u003cstrong\u003e0.12 kg (0.26 lbs)\u003c\/strong\u003e, the handle bar adds minimal weight to your optical tube. It is unlikely to significantly affect the balance of a RedCat 51 on a capable star tracker or small equatorial mount, but you should always re-balance your entire system after adding or removing any accessory.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow long is the William Optics Cat Series Handle Bar?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe handle bar measures \u003cstrong\u003e107 mm\u003c\/strong\u003e in length, making it a compact addition that matches the scale of the Cat series telescopes and provides a secure grip without being cumbersome.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount a heavy guide scope to the Cat Series Handle Bar?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile the Mini-Vixen saddle is secure, the handle's primary purpose is for lightweight accessories. Mounting a heavy guide scope (e.g., a full 80mm refractor) is not recommended, as it could introduce flexure into your imaging train and place undue stress on the handle and the telescope's mounting points.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the color of the Cat Series Saddle Handle Bar match the telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the handle bar is available in multiple colors, including red and black, which are anodized to match the distinctive finish of the William Optics Cat series telescopes, ensuring a seamless and professional look.\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\u003eLength\u003c\/td\u003e\n\u003ctd\u003e107 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e44 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDovetail Type\u003c\/td\u003e\n\u003ctd\u003eMini-Vixen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.12 kg \/ 0.26 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics Cat Series Saddle Handle Bar\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\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Red","offer_id":44967243514141,"sku":"WO-M-HCRC-RD","price":83.0,"currency_code":"CAD","in_stock":true},{"title":"Black","offer_id":44967243546909,"sku":"WO-M-HCRC-BL","price":83.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Cat-Series-Saddle-Handle-Bar-M-HCRC-1__20520.1596133330.1280.1280.jpg?v=1684339494"},{"product_id":"william-optics-zenithstar-v1-upgrade-mounting-ring","title":"William Optics ZenithStar V1 Upgrade Mounting Ring","description":"\u003cul\u003e\n\u003cli\u003eAllows for simple installation\u003c\/li\u003e\n\u003cli\u003eMade with improved CNC for greater rigidity\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\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cp\u003eThe William Optics ZenithStar V1 Upgrade Mounting Ring is a precision-designed accessory for upgrading the mounting system of ZenithStar 61 version one telescopes. It provides a secure and rigid connection, enabling stable attachment to various mounts and astronomical equipment, and offers improved functionality and performance for astrophotography and observing applications.\u003c\/p\u003e\n\u003cdiv class=\"warning\"\u003e\n\u003cimg width=\"25px\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/warning-logo.svg?v=1714663206\" alt=\"Disclaimer\"\u003e\n\u003cp\u003e\u003cb\u003eDesigned for ZenithStar telescopes 61 version one.\u003c\/b\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003ch3\u003eBenefits and Features\u003c\/h3\u003e\n\u003chr\u003e\n\u003cdiv class=\"two-columns-section\"\u003e\n\u003cdiv class=\"text-side-2\"\u003e\n\u003cp\u003eHere are some key benefits and features:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAllows for simple installation\u003c\/li\u003e\n\u003cli\u003eUsed to upgrade the mounting ring to match the latest model\u003c\/li\u003e\n\u003cli\u003eThe CAT handle bar is suitable for uniguide scopes\u003c\/li\u003e\n\u003cli\u003eMade with improved CNC for greater rigidity\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: start;\" class=\"image-side-2\" data-mce-style=\"text-align: start;\"\u003e\u003cimg style=\"margin-bottom: 16px; float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-ZenithStar-V1-Upgrade-Mounting-Ring-1__35687.1596133331.1280.1280.jpg?v=1684339751\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Gold","offer_id":44967253573917,"sku":"WO-M-R-61GD-P","price":109.0,"currency_code":"CAD","in_stock":true},{"title":"Blue","offer_id":44967253606685,"sku":"WO-M-R-61BU-P","price":109.0,"currency_code":"CAD","in_stock":true},{"title":"Red","offer_id":44967253639453,"sku":"WO-M-R-61RD-P","price":109.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-ZenithStar-V1-Upgrade-Mounting-Ring-1__35687.1596133331.1280.1280.jpg?v=1684339751"},{"product_id":"william-optics-saddle-plate-for-vixen-style-dovetail-plate-90mm","title":"William Optics Saddle Plate for Vixen-Style Dovetail Plate - 90mm","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eLength: 90 mm\u003c\/li\u003e\n\u003cli\u003eDovetail Type: Vixen-Style\u003c\/li\u003e\n\u003cli\u003eWeight: 230 g (0.51 lbs)\u003c\/li\u003e\n\u003cli\u003eFull-Length, Non-Marring Clamp\u003c\/li\u003e\n\u003cli\u003eSignature William Optics Red Anodized Finish\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\u003eWilliam Optics Saddle Plate for Vixen-Style Dovetail Plate - 90mm\u003c\/h2\u003e\n\u003cp\u003eUpgrade your mount with the William Optics 90mm Saddle Plate, engineered for a secure, non-marring connection with any Vixen-style dovetail. Weighing just 230g (0.51 lbs), this precision-machined saddle provides a rigid, full-surface clamp without adding significant mass to your portable imaging or observing setup.\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\u003eA 90mm Vixen Saddle with a Non-Marring Grip\u003c\/h3\u003e\n\u003cp\u003eThis saddle plate replaces basic, single-screw locks with a full-length clamping bar. This design makes contact along the entire 90 mm length of the saddle, distributing pressure evenly and creating a far more secure connection that prevents slipping and rotation. Most importantly, it protects the finish on your dovetail bars from the gouges and scratches common with single-bolt systems.\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\u003eLightweight 230g Construction for Small Mounts\u003c\/h3\u003e\n\u003cp\u003eAt only 230 g, this saddle is an ideal upgrade for portable star trackers and small equatorial mounts where payload capacity is critical. The compact 90 mm length provides ample stability for wide-field refractors and telephoto lens setups without introducing unnecessary weight or leverage. While perfect for compact systems, users with longer optical tubes may prefer a longer saddle for additional stability.\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\u003eWilliam Optics Saddle vs. Stock Single-Bolt Saddles: Security and Finish\u003c\/h3\u003e\n\u003cp\u003eMany entry-level mounts are supplied with a simple saddle that uses one or two thumbscrews to hold the telescope. This William Optics saddle represents a significant upgrade in both function and form.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eContact Surface:\u003c\/strong\u003e A stock saddle's single bolt creates a single, high-pressure point of contact that can dent your dovetail and allow the telescope to pivot. The William Optics design clamps along a 90 mm surface, locking the equipment rigidly in place.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEquipment Care:\u003c\/strong\u003e The smooth, flat clamping bar glides against your dovetail, preserving its anodized finish. Stock bolts dig directly into the aluminum, permanently marking your gear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAesthetics:\u003c\/strong\u003e Finished in the signature William Optics red, this saddle adds a touch of professional build quality to your mount, matching the fit and finish of their premium telescopes.\u003c\/li\u003e\n\u003c\/ul\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 is the advantage of the William Optics 90mm Saddle Plate over my mount's stock saddle?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary advantage is security and equipment care. Its full-length clamping bar provides a much larger contact area than a simple thumbscrew, preventing your telescope from slipping or rotating. This design also avoids scratching or denting your Vixen-style dovetail bars, preserving your equipment's condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill the William Optics 90mm Saddle Plate fit on my Sky-Watcher Star Adventurer Pro?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, this is a very popular upgrade for portable trackers like the Star Adventurer and iOptron SkyGuider Pro. Its low weight of \u003cstrong\u003e230 g\u003c\/strong\u003e ensures it doesn't overburden the tracker's payload capacity, while providing a much more stable and reliable mounting platform than the standard ball head or small Vixen clamp.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes this William Optics saddle prevent marks on my Vixen dovetail bars?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The saddle uses a flat, smooth clamping mechanism that presses firmly against the dovetail bar instead of a pointed screw that digs into it. This non-marring design is a key feature for astronomers who want to keep their equipment in pristine condition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 90mm length of this saddle plate sufficient for a small refractor like a RedCat 51?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The \u003cstrong\u003e90 mm\u003c\/strong\u003e length is an excellent match for compact, wide-field refractors like the William Optics RedCat, Zenithstar, or similar telescopes. It provides a very secure base for imaging and visual use without being excessively large or heavy for the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat tools are needed to install the William Optics Saddle Plate?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eInstallation typically requires standard metric hex keys (Allen wrenches) to attach the saddle to your specific mount head. The required bolts and their sizes depend on the mount you are attaching it to. Mounting hardware is generally not included with the saddle itself.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this William Optics saddle compatible with Losmandy D-style dovetail plates?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This saddle is designed exclusively for the narrower \u003cstrong\u003eVixen-style\u003c\/strong\u003e dovetail standard. It will not accept the wider Losmandy D-style plates.\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\u003eLength\u003c\/td\u003e\n\u003ctd\u003e90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDovetail Type\u003c\/td\u003e\n\u003ctd\u003eVixen\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e230 g \/ 0.51 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\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eWilliam Optics Saddle Plate for Vixen-Style Dovetail Plate - 90mm\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\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Red","offer_id":44967253737757,"sku":"WO-M-SP90RC-RD","price":109.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/William-Optics-Saddle-Plate-for-Vixen-Style-Dovetail-Plate-90mm-M-SP90RC-1__46341.1596133332.1280.1280.jpg?v=1684339756"},{"product_id":"william-optics-pair-of-riser-blocks","title":"William Optics Pair of Riser Blocks","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eProvides critical clearance for cameras and filter wheels\u003c\/li\u003e\n\u003cli\u003eImproves balance options for complex imaging trains\u003c\/li\u003e\n\u003cli\u003eDesigned for William Optics Universal mounting systems\u003c\/li\u003e\n\u003cli\u003eSold as a matched pair for stable, even support\u003c\/li\u003e\n\u003cli\u003eRobust construction for secure telescope mounting\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\u003eWilliam Optics Pair of Riser Blocks\u003c\/h2\u003e\n\u003cp\u003eThis William Optics Pair of Riser Blocks is the straightforward solution for common telescope mounting problems. Specifically designed for the William Optics Universal system, these blocks create essential space between your optical tube and the saddle plate. This added height prevents larger cameras, filter wheels, or electronic focusers from colliding with the mount during slewing or meridian flips, safeguarding your equipment and ensuring uninterrupted imaging sessions.\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\u003eEssential Clearance for William Optics Universal Systems\u003c\/h3\u003e\n\u003cp\u003eWhen assembling a modern astrophotography rig, clearance is a critical factor. The William Optics Riser Blocks are engineered to elevate your telescope, providing the room needed to accommodate today's larger accessories. This elevation is key to achieving a greater range of motion, particularly near the meridian, where the risk of collision between your imaging train and the mount is highest.\u003c\/p\u003e\n\u003cp\u003eBeyond preventing physical impacts, these blocks also offer greater flexibility in balancing your setup. By raising the telescope, you create more latitude to slide the entire assembly forward or backward, making it easier to achieve perfect balance, especially with heavy or off-center payloads. This results in more accurate tracking, sharper stars, and less strain on your mount's drive motors.\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 is the primary purpose of the William Optics Riser Blocks?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary purpose of the \u003cstrong\u003eWilliam Optics Riser Blocks\u003c\/strong\u003e is to increase the distance between the telescope tube and the mount saddle. This provides critical clearance for large accessories like cameras and filter wheels, preventing them from hitting the mount, and offers more flexibility for achieving precise balance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhich mounting systems are these Riser Blocks designed for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese riser blocks are specifically designed to be compatible with \u003cstrong\u003eWilliam Optics Universal\u003c\/strong\u003e mounting systems. They are intended to integrate seamlessly with this hardware platform.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill these William Optics Riser Blocks help if my camera hits my mount?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This is one of the main problems they solve. By elevating your telescope, the riser blocks create extra space that can prevent your camera body, filter wheel, or cables from colliding with the mount deck or tripod legs, especially when imaging objects near the celestial meridian.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do the William Optics Riser Blocks improve telescope balance?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAchieving perfect balance is crucial for autoguiding and tracking. The riser blocks provide more physical room to slide your telescope's dovetail plate within the saddle. This makes it easier to counteract the weight of a heavy imaging train at the rear or a large dew shield at the front, ensuring the entire system's center of gravity is correctly positioned over the mount's axes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of hardware is needed to attach the William Optics Riser Blocks?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe blocks are designed to be installed between your telescope's tube rings or mounting plate and the dovetail bar. You will typically need longer versions of the screws you would normally use to attach your dovetail. The exact length and thread type will depend on your specific rings and dovetail bar, so you should measure to ensure a secure fit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use these William Optics blocks to mount a guide scope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese blocks are designed to raise the entire primary telescope assembly. They are not intended for mounting a guide scope directly. To mount a guide scope, you should use a dedicated guide scope ring system attached to the top of your main telescope's tube rings or a top-mounted dovetail bar.\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\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics Universal Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eRiser Block\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"BK61","offer_id":49543453835549,"sku":"WO-M-BK61-BL","price":42.0,"currency_code":"CAD","in_stock":true},{"title":"BK 71","offer_id":52840011039005,"sku":"WO-M-BK71-BL","price":52.0,"currency_code":"CAD","in_stock":true},{"title":"BK81","offer_id":52840011071773,"sku":"WO-M-BK81-BL","price":52.0,"currency_code":"CAD","in_stock":true},{"title":"BK100","offer_id":48746030694685,"sku":"WO-M-BK100-BL","price":52.0,"currency_code":"CAD","in_stock":true},{"title":"BK132","offer_id":52840011104541,"sku":"WO-M-BK132-BL","price":52.0,"currency_code":"CAD","in_stock":true},{"title":"BKUC131","offer_id":52840049738013,"sku":"WO-M-BKUC131-RD","price":52.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/WO-M-BK100-BL.jpg?v=1719932078"},{"product_id":"william-optics-m-r-61bl-p","title":"William Optics Mounting Ring for Z61","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eDesigned specifically for the William Optics ZenithStar 61 I\u003c\/li\u003e\n\u003cli\u003eProvides a secure, rigid mounting point for the optical tube\u003c\/li\u003e\n\u003cli\u003eFeatures an integrated CAT-style handle bar\u003c\/li\u003e\n\u003cli\u003eEnhances portability for grab-and-go setups\u003c\/li\u003e\n\u003cli\u003eHandle serves as a mounting platform for accessories\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\u003eMounting Ring for Z61\u003c\/h2\u003e\n\u003cp\u003eThis Mounting Ring and CAT Handle Bar Kit provides a dedicated, secure mounting solution for the original William Optics ZenithStar 61 version I refractor. The single-ring design ensures a rigid connection between your telescope and dovetail plate, preventing flexure and maintaining alignment. The integrated CAT-style handle simplifies transport and offers a convenient platform for mounting guide scopes or other accessories, making it an essential upgrade for both portable and stationary imaging setups.\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\u003eSecure Mounting and Handling for the ZenithStar 61 I\u003c\/h3\u003e\n\u003cp\u003eEngineered exclusively for the ZenithStar 61 I, this mounting ring provides a precise fit that cradles the optical tube without causing cosmetic damage. Its robust construction forms a solid foundation for astrophotography, ensuring your entire imaging train remains stable throughout an exposure. A key limitation to note is that this ring is not compatible with the later ZenithStar 61 II models, as the tube dimensions differ.\u003c\/p\u003e\n\u003cp\u003eThe integrated CAT handle transforms the ergonomics of the telescope. It provides a balanced grip for safely carrying your Z61 I to and from your observing site and simplifies the process of mounting it on your telescope mount, even in the dark.\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\"\u003eWill this Mounting Ring for Z61 fit the newer ZenithStar 61 II model?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eNo, it will not.\u003c\/strong\u003e This mounting ring is specifically designed for the physical dimensions of the \u003cstrong\u003eZenithStar 61 version I\u003c\/strong\u003e only. It is not compatible with any subsequent versions of the Z61.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the purpose of the CAT handle on the Mounting Ring for Z61?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe CAT handle serves two primary functions. First, it acts as a sturdy carrying handle, making it much easier and safer to transport your ZenithStar 61 I. Second, it functions as an accessory rail, allowing you to mount additional equipment like a guide scope, finder scope, or WiFi adapter directly to the top of the telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a specific dovetail plate to use with this Z61 ring?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis mounting ring itself does not include a dovetail plate. It features standard threaded holes on its base, allowing you to attach either a Vixen-style or Losmandy-style dovetail bar of your choice, depending on what your telescope mount requires.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does this ring kit improve balancing my ZenithStar 61 I with a camera attached?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBy allowing you to slide the entire telescope assembly forward or backward along a dovetail bar, this ring makes it much easier to achieve perfect balance. This is critical for astrophotography, as an unbalanced scope can lead to tracking errors and trailed stars. The single-ring design provides a single point of adjustment for the entire optical train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I mount a guide scope to the CAT handle on the Mounting Ring for Z61?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The CAT handle is designed to be compatible with William Optics guide scope rings and other Vixen-style accessory clamps. This allows you to mount a guide scope directly on top of the main optical tube, creating a compact and rigid autoguiding setup for your ZenithStar 61 I.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs this Mounting Ring for Z61 sturdy enough for a grab-and-go travel setup?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The combination of a secure ring and a solid handle makes this an ideal accessory for a portable travel rig built around the ZenithStar 61 I. It enhances both the stability and the portability of the telescope, which are key requirements for a grab-and-go system.\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\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eWilliam Optics ZenithStar 61 version I Only\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\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/william-optics-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eWilliam Optics 2-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"William Optics","offers":[{"title":"Default Title","offer_id":52853690564893,"sku":"WO-M-R-61BL-P","price":137.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/WilliamOptics-Mounting-Ring-for-Z61-1_83e3a7a0-0f8e-4c43-a79f-3f75478ffd3b.jpg?v=1788457782"}],"url":"https:\/\/davidastro.com\/en-us\/collections\/william-optics-mount-accessories.oembed","provider":"David Astro","version":"1.0","type":"link"}