{"title":"Télescopes SVBONY","description":"\u003cp\u003eLes télescopes SVBONY vont du premier instrument à la lunette d'astrophotographie. Les débutants peuvent commencer avec la SV502 pour enfants, le kit complet SV520 ou les lunettes portables SV501P, tandis que les achromatiques SV48P de 90mm et 102mm offrent des vues plus larges. Les Maksutov-Cassegrain MK90 et MK127 sont des tubes compacts pour la Lune et les planètes. En imagerie, on trouve les lunettes ED SV503, les APO SV550 de 80mm et 122mm et l'objectif astrographe Petzval SV555 54mm f\/4.5.\u003c\/p\u003e","products":[{"product_id":"svbony-sv503-ed-80mm-f7-doublet","title":"SVBONY SV503 ED 80mm F7 Doublet","description":"\u003c!-- more --\u003e\n\u003cp\u003e1.Rugged housing prevents damage;\u003c\/p\u003e\n\u003cp\u003e2.Sliding graceful and soft dual-speed focuser;\u003c\/p\u003e\n\u003cp\u003e3.Ed glass (S-FPL51) can produce very beautiful and clear images;\u003c\/p\u003e\n\u003cp\u003e4.The fully multilayer coated lens eliminates all reflections on the glass, and it has little or no chromatic aberration at high magnification.\u003c\/p\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" border=\"0\"\u003e\n\u003ccolgroup\u003e\n\u003ccol\u003e\n\u003ccol\u003e\n\u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eSV503\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Lens Diameter \u003c\/td\u003e\n\u003ctd\u003e80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Piece Lens Description\u003c\/td\u003e\n\u003ctd\u003eED\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e560 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003eF7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Coated\u003c\/td\u003e\n\u003ctd\u003eUltra-wideband Coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Lens Type\u003c\/td\u003e\n\u003ctd\u003eDouble Separation Lens Structure\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLimit Magnitude\u003c\/td\u003e\n\u003ctd\u003e11.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSet The Light Force\u003c\/td\u003e\n\u003ctd\u003e130.6x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1.5 Arcseconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e3950g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Tube Material\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Outer Diameter\u003c\/td\u003e\n\u003ctd\u003e103mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2 inch Dual Speed Focuser; The Gear Ratio 110\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Type\u003c\/td\u003e\n\u003ctd\u003eRack Pinion Design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackages\u003c\/td\u003e\n\u003ctd\u003e1x SV503 White 80ED F7 Telescope OTA (for observing and for astrophotography)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Dimensions\u003c\/td\u003e\n\u003ctd\u003e540mm*215mm*230mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":49024062980381,"sku":"SV-F9359B","price":580.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/image_06400c35-1e84-4d73-aa31-c62bfdd3378b.jpg?v=1723303339"},{"product_id":"svbony-sv555-54mm-f-4-5-petzval-apo-astrograph-lens","title":"SVBONY SV555 54mm f\/4.5 Petzval APO Astrograph Lens","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e54mm Aperture \/ 243mm Focal Length (f\/4.5)\u003c\/li\u003e\n\u003cli\u003e5-Element Petzval APO Optical Design\u003c\/li\u003e\n\u003cli\u003e44mm Full-Frame Image Circle\u003c\/li\u003e\n\u003cli\u003eVariable f\/4.5 to f\/22 Aperture Ring\u003c\/li\u003e\n\u003cli\u003eIncludes EAF Mounting Kit and 360° Rotator\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\u003eSvbony SV555 54mm F4.5 Petzval APO Astrograph Lens\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV555 combines a 5-element Petzval optical system with the functionality of a professional telephoto lens, delivering a flat 44mm image circle for full-frame sensors. Its 54mm aperture and 243mm focal length produce a fast f\/4.5 focal ratio, while a unique variable aperture control allows you to stop down to f\/22 for enhanced control over star shapes and depth of field. This astrograph arrives ready for automation, including a mounting kit for popular electronic focusers right out of the box.\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\u003e5-Element Petzval Optics: A 44mm Flat-Field Image Circle\u003c\/h3\u003e\n\u003cp\u003eThe SV555's core is a 5-element, 3-group Petzval objective that acts as its own field flattener, ensuring sharp, point-like stars across a full-frame 44mm image circle. This apochromatic (APO) design virtually eliminates chromatic aberration, rendering vivid, high-contrast images without color fringing. At a 243mm focal length, you can capture vast swaths of the Milky Way or frame large targets like the Andromeda Galaxy (M31) and the North American Nebula (NGC 7000) in a single shot.\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\u003ef\/4.5 to f\/22 Aperture Control: Unprecedented Imaging Flexibility\u003c\/h3\u003e\n\u003cp\u003eUnlike fixed-aperture astrographs, the SV555 features a manual aperture ring, adjustable from a wide-open f\/4.5 to a narrow f\/22. Shooting at the native f\/4.5 maximizes light gathering for faint deep-sky objects. Stopping down slightly can tighten star performance at the extreme edges of the field or increase contrast for lunar imaging, giving you a level of optical control typically reserved for camera lenses.\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\u003eIntegrated Imaging Train: 360° Rotator and Included EAF Mount\u003c\/h3\u003e\n\u003cp\u003eThe SV555 is engineered for a seamless imaging experience. It includes a dedicated mounting kit for popular EAF systems, a lockable 360° camera angle adjuster for precise framing, and a helical focuser for fine adjustments. A built-in 2\" filter holder sits within the optical train, allowing easy integration of light pollution or narrowband filters without altering your back focus. The 184mm Vixen-style dovetail plate provides a secure connection to your 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\u003eSvbony SV555 vs. William Optics RedCat 51: Aperture and Control\u003c\/h3\u003e\n\u003cp\u003eThe primary competitor in this category is the William Optics RedCat 51, a highly regarded Petzval astrograph. While both deliver a flat, full-frame field, the SV555 presents key differences.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture and Speed:\u003c\/strong\u003e The SV555 offers a slightly larger 54mm aperture and a faster f\/4.5 focal ratio compared to the RedCat's 51mm and f\/4.9. This translates to more light-gathering capability and shorter exposure times for the same target.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAperture Control:\u003c\/strong\u003e The SV555's defining feature is its variable f\/4.5-f\/22 aperture, offering creative control over star sharpness and depth of field. The RedCat 51 has a fixed f\/4.9 aperture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Accessories:\u003c\/strong\u003e Svbony includes an EAF mounting kit in the box, a component that is typically an additional purchase for other astrographs.\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 Svbony SV555's Petzval design?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e5-element Petzval design\u003c\/strong\u003e incorporates corrective optics directly into the main lens assembly. This means the Svbony SV555 produces a flat, corrected image field across its entire 44mm image circle without requiring a separate, external field flattener, simplifying your imaging train.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the variable aperture (f\/4.5-f\/22) on the SV555 benefit astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe variable aperture gives you enhanced optical control. While the native \u003cstrong\u003ef\/4.5\u003c\/strong\u003e setting is best for capturing faint deep-sky objects, stopping down to f\/5.6 or f\/8 can slightly improve star shapes at the very edge of the frame or increase contrast on bright objects like the Moon. It also provides flexibility for terrestrial and daytime photography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Svbony SV555 with my full-frame camera like a Sony A7 or Canon R5?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The Svbony SV555 is designed with a \u003cstrong\u003e44mm image circle\u003c\/strong\u003e, which fully illuminates the sensors of full-frame DSLR and mirrorless cameras. The back of the lens features a standard M48x0.75 male thread, allowing you to connect your camera with a brand-specific M48 T-ring.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat do I need to attach an electronic focuser (EAF) to the SV555?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNothing extra. The Svbony SV555 \u003cstrong\u003eincludes an EAF mounting kit\u003c\/strong\u003e in the box. This kit is designed to attach popular ZWO EAF models directly to the helical focuser, allowing you to achieve automated, precise focusing right away.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the SV555 perform on large targets like the Andromeda Galaxy (M31) or the North American Nebula (NGC 7000)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV555's \u003cstrong\u003e243mm focal length\u003c\/strong\u003e provides a very wide field of view, making it ideal for large celestial targets. Paired with a full-frame camera, you can easily fit the entirety of the Andromeda Galaxy (M31) or the expansive nebulosity of the North American Nebula (NGC 7000) and the Pelican Nebula (IC 5070) within a single frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of filters can I use with the Svbony SV555?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Svbony SV555 has two filter mounting options. It features a \u003cstrong\u003ebuilt-in 2\" filter holder\u003c\/strong\u003e located inside the optical tube for standard 2-inch threaded filters. Additionally, the front of the lens has an \u003cstrong\u003eM72 thread\u003c\/strong\u003e for attaching larger front-mounted filters.\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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Design\u003c\/td\u003e\n\u003ctd\u003ePetzval (5 Elements in 3 Groups)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e54mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e243mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.5 - f\/22\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImage Circle\u003c\/td\u003e\n\u003ctd\u003eΦ 44mm (Full Frame)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated (FMC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003eHelical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eM48x0.75 Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Rotator\u003c\/td\u003e\n\u003ctd\u003eLockable 360º\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFilter Threads\u003c\/td\u003e\n\u003ctd\u003eM72 (Front), Internal 2\" Holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eVixen-style Dovetail Plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDovetail Length\u003c\/td\u003e\n\u003ctd\u003e184mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e2450g (excluding accessories)\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\"\u003eSV555 54mm f\/4.5 OTA\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eEAF Mount Kit\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eHandle with Vixen Finder Saddle\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDovetail Plate with M6 Holes\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eCamera Angle Adjuster\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" Filter Holder (Assembled)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePlastic Lens Cover\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSoft Padded Case\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV555_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV555_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSvbony 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861222420765,"sku":"SV-F9395A","price":714.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV555-54mm-F4-5-Petzval-APO-Astrograph-Lens-for-CMOS-Cameras-1_a3ed004e-fffa-45ef-b871-d8d0bfddc691.jpg?v=1788884117"},{"product_id":"svbony-sv545-45mm-f-4-5-203mm-petzval-refractor-astrograph-lens","title":"SVBONY SV545 45mm f\/4.5 203mm Petzval Refractor Astrograph Lens","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e45mm Aperture\u003c\/li\u003e\n\u003cli\u003e203mm Focal Length (f\/4.5)\u003c\/li\u003e\n\u003cli\u003e5-Element Petzval Optical Design\u003c\/li\u003e\n\u003cli\u003eNative Flat-Field Astrograph\u003c\/li\u003e\n\u003cli\u003eHelical Focuser with 360º Rotator\u003c\/li\u003e\n\u003cli\u003eM48x0.75 Camera Connection\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\u003ePetzval Refractor Astrograph Lens | SVBONY SV545\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV545 is a dedicated wide-field astrograph, combining a fast f\/4.5 focal ratio with a 203mm focal length in a compact 45mm aperture optical system. Its 5-element Petzval design provides a natively flat field without the need for an external corrector, delivering sharp stars across the frame with any modern astronomy camera.\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\u003e45mm f\/4.5 Petzval Optics: 5 Elements for a Native Flat Field\u003c\/h3\u003e\n\u003cp\u003eThe SV545's optical core is a 5-element Petzval design arranged in 3 groups, engineered to eliminate field curvature right out of the box. This means you don't need a separate field flattener to achieve pinpoint stars, simplifying your imaging train and reducing costs. With a 45mm aperture and a fast f\/4.5 focal ratio, you can capture faint, extended objects like the North American Nebula (NGC 7000) or the Andromeda Galaxy (M31) with shorter exposure times.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Multi-Coated (FMC) Optics:\u003c\/strong\u003e All air-to-glass surfaces are coated to maximize light transmission and contrast, ensuring rich color and detail in your images.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide-Field Specialist:\u003c\/strong\u003e The 203mm focal length is purpose-built for capturing large swaths of the Milky Way and large-scale nebulae, not for high-magnification planetary viewing where its 45mm aperture would be a limitation.\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\u003eEAF-Ready Helical Focuser with 360° Rotation\u003c\/h3\u003e\n\u003cp\u003eAchieving critical focus is managed by a robust helical focuser designed for modern astrophotography workflows. The focuser is built to be compatible with popular Electronic Auto Focusers (EAFs), allowing you to automate your focusing routine for maximum sharpness. A lockable 360° rotator is integrated into the body, letting you frame your target perfectly without rotating your camera and upsetting your cable management.\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\u003eAll-Metal Build: 2750g with an M48x0.75 Connection\u003c\/h3\u003e\n\u003cp\u003eThe SV545 is constructed with an all-metal body and sealed optics, providing durability for fieldwork in changing environmental conditions. At an estimated weight of 2750g, it remains portable enough for lightweight star trackers and travel mounts. The rear of the astrograph terminates in a standard M48x0.75 male thread, enabling a secure, direct connection to DSLRs (with an M48 T-ring), dedicated astronomy cameras, and filter wheels.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDovetail Plate Mount:\u003c\/strong\u003e A standard dovetail plate allows for quick and secure attachment to a wide range of equatorial mounts and trackers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimplified Imaging Train:\u003c\/strong\u003e The standard M48 connection and native flat-field design remove the need for extra adapters and correctors, creating a more rigid and reliable optical setup.\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\"\u003eDo I need a field flattener or reducer for the SVBONY SV545?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. The SVBONY SV545 uses a \u003cstrong\u003ePetzval optical design\u003c\/strong\u003e, which produces a natively flat imaging field without any external correctors. You can connect your camera directly and expect sharp stars from edge to edge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I connect my camera to the SV545 astrograph?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV545 features a standard \u003cstrong\u003eM48x0.75 male thread\u003c\/strong\u003e at the back. You can connect most dedicated astronomy cameras and filter wheels directly. For a DSLR or mirrorless camera, you will need a corresponding M48 T-ring for your camera brand.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV545's focuser compatible with an EAF?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the product is designed with a helical focuser that is pre-equipped for mounting an Electronic Auto Focuser (EAF). This allows for precise, automated focusing during an imaging session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of mount is needed for the 2750g SVBONY SV545?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith an estimated weight of 2750g, the SV545 is well-suited for portable star trackers (like a Sky-Watcher Star Adventurer) or small equatorial mounts. Its compact size and weight make it an excellent choice for a travel astrophotography setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would the SV545 frame large targets like the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e203mm focal length\u003c\/strong\u003e of the SVBONY SV545 is ideal for framing large deep-sky objects. When paired with a common APS-C or Micro Four Thirds sensor, it will comfortably capture the entirety of the Orion Nebula (M42), including the surrounding nebulosity and the Running Man Nebula (NGC 1977), in a single shot.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV545 suitable for planetary imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, this is not the ideal instrument for planets. The SV545 is a wide-field astrograph with a short 203mm focal length and small 45mm aperture. While you could see Jupiter's moons, it lacks the magnification and resolution needed to capture detail on planetary surfaces. A Schmidt-Cassegrain or Maksutov-Cassegrain would be a better choice for that purpose.\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\u003eObjective Type\u003c\/td\u003e\n\u003ctd\u003ePetzval Design (5 Elements in 3 Groups)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e45mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e203mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated (FMC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003eHelical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Rotator\u003c\/td\u003e\n\u003ctd\u003eLockable 360º\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCamera Connection\u003c\/td\u003e\n\u003ctd\u003eM48x0.75 Male Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eDovetail Plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEstimated Weight\u003c\/td\u003e\n\u003ctd\u003e2750g\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\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV545_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV545_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861222519069,"sku":"SV-W9317B","price":560.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-Petzval-Refractor-Astrograph-Lens-SVBONY-SV545-1_52bd45d5-bd8a-43f0-a072-d31ac4045018.jpg?v=1788659396"},{"product_id":"svbony-mk127-127mm-maksutov-cassegrain-telescope-ota","title":"SVBONY MK127 127mm Maksutov-Cassegrain Telescope OTA","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eMaksutov-Cassegrain Optical Design\u003c\/li\u003e\n\u003cli\u003ef\/11.8 Native Focal Ratio\u003c\/li\u003e\n\u003cli\u003ef\/7.68 with Included 0.65x Reducer\u003c\/li\u003e\n\u003cli\u003eInternal Dual-Speed Focuser\u003c\/li\u003e\n\u003cli\u003e210mm Vixen-Style Dovetail Plate\u003c\/li\u003e\n\u003cli\u003eSecondary Mirror with 99% Reflectivity Dielectric Coatings\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\u003eSVBONY MK127 Maksutov-Cassegrain Telescope\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY MK127 Maksutov-Cassegrain Telescope is engineered for high-magnification planetary and lunar observation, featuring a native f\/11.8 focal ratio and secondary mirror with 99% reflectivity dielectric coatings for maximum image brightness. With the included 0.65x focal reducer, the system converts to a faster f\/7.68 for wider deep-sky views, offering two distinct optical configurations in one package. The optical tube's light gathering power is 254X that of the naked eye, and it connects to a universe of accessories via its standard SCT male thread (2\" 24TPI).\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\u003eRumak-Maksutov Optics: 99% Reflectivity for High-Contrast Views\u003c\/h3\u003e\n\u003cp\u003eThe MK127 uses a Rumak-style Maksutov-Cassegrain design, which features a separated secondary mirror. This improves optical alignment and correction, delivering sharper stellar images and higher contrast on planetary details compared to standard Maksutovs. The primary mirror has a multi-coated aluminum finish, while the secondary boasts 99% reflectivity dielectric coatings to maximize light transmission to your eyepiece.\u003c\/p\u003e\n\u003cp\u003eUnlike achromatic refractors, this catadioptric system is free of chromatic aberration. Bright targets like Jupiter, the lunar limb, and bright stars are rendered without distracting purple fringing, revealing crisp, natural detail. While the enclosed tube requires time to acclimate to ambient temperature, the reward is apochromatic-level views from a remarkably compact instrument.\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 Focal Ratios: From f\/11.8 to f\/7.68 with the 0.65x Reducer\u003c\/h3\u003e\n\u003cp\u003eThis telescope includes a 0.65x focal reducer, transforming its optical characteristics with a simple accessory change. At its native f\/11.8, the long focal length is ideal for achieving high power on small targets, allowing you to resolve cloud bands on Jupiter, the Cassini Division in Saturn's rings, and tiny craterlets on the Moon.\u003c\/p\u003e\n\u003cp\u003eAttaching the reducer converts the scope to a faster f\/7.68 system. This shortens exposure times for astrophotography and provides a wider true field of view for observing larger deep-sky objects like the Orion Nebula (M42) or the Andromeda Galaxy (M31). This built-in flexibility allows the MK127 to function as both a dedicated planetary scope and a capable wide-field instrument.\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\u003eMechanical Design: 210mm Dovetail and Dual-Speed Focuser\u003c\/h3\u003e\n\u003cp\u003eThe MK127 is built for stability and precision. It attaches to any mount accepting a Vixen-style rail with its included 210mm dovetail plate, providing a secure connection for visual use or imaging. The internal dual-speed focuser allows for smooth and precise adjustments, which is critical for achieving perfect sharpness at high magnification.\u003c\/p\u003e\n\u003cp\u003eThe coarse knob allows you to find initial focus quickly, while the fine-adjustment knob gives you the delicate control needed to snap planetary details into sharp relief. Because focusing is achieved by moving the primary mirror internally, there is no external drawtube, minimizing focus shift and maintaining a rigid imaging train.\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\u003eSCT Ecosystem: 2\" 24TPI Threads and Included Adapters\u003c\/h3\u003e\n\u003cp\u003eAt the rear of the telescope is a standard SCT male thread (2\" 24TPI), granting the MK127 access to the vast ecosystem of Schmidt-Cassegrain accessories. This includes focal reducers, off-axis guiders, and dedicated cameras. SVBONY includes the necessary adapters to get you started right out of the box.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSCT to 2\" Adapter:\u003c\/strong\u003e Allows the use of 2-inch diagonals, eyepieces, and other accessories for wide-field viewing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSCT to 1.25\" Adapter:\u003c\/strong\u003e Lets you connect standard 1.25-inch diagonals and eyepieces, the most common format for planetary observing. This adapter also features integrated T-threads for direct camera attachment.\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 kind of mount is required for the SVBONY MK127?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY MK127 weighs 6.47lb (2934g) and comes with a 210mm Vixen-style dovetail plate. It is compatible with any astronomical mount that can support this weight and uses a Vixen-style saddle, such as a Celestron AVX, Sky-Watcher EQM-35, or a medium-duty alt-azimuth mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat are the f\/11.8 and f\/7.68 focal ratios on the SVBONY MK127 used for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThese two focal ratios give the SVBONY MK127 excellent flexibility.\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ef\/11.8 (Native):\u003c\/strong\u003e This is the telescope's natural focal ratio. It is ideal for high-magnification visual observation of the Moon and planets, where a long focal length helps achieve high power with comfortable eyepieces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ef\/7.68 (with Reducer):\u003c\/strong\u003e By attaching the included 0.65x focal reducer, you get a wider, brighter field of view. This is better suited for observing larger deep-sky objects and for astrophotography, as it reduces exposure times.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I see the Cassini Division in Saturn's rings with the SVBONY MK127?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Under conditions of good atmospheric seeing, the SVBONY MK127's Maksutov-Cassegrain optics are capable of resolving fine details like the Cassini Division in Saturn's rings, as well as major cloud belts on Jupiter. The internal dual-speed focuser is critical for achieving the precise focus needed to see such details.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY MK127 suitable for imaging the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, especially when using the included 0.65x focal reducer to operate at f\/7.68. This provides a wider field of view to frame large targets like the Orion Nebula (M42) and shortens exposure times. For best results, it should be used on a stable equatorial mount that can track the sky.\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 Rumak design in the SVBONY MK127?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Rumak optical design used in the SVBONY MK127 separates the secondary mirror from the rear of the corrector plate. This gives optical designers more freedom to correct for aberrations, resulting in a flatter field and sharper images across a wider area compared to a standard Gregory-Maksutov. It's a key feature that enhances the telescope's high-resolution capabilities.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the SVBONY MK127 come with everything needed to attach eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAlmost. The SVBONY MK127 includes adapters for both 2-inch and 1.25-inch accessories. You will still need to provide your own star diagonal and eyepieces to begin observing. The included adapters ensure that whichever size diagonal you choose will connect to the telescope's SCT thread.\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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Structure\u003c\/td\u003e\n\u003ctd\u003eMaksutov-Cassegrain optics\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/11.8 \u0026amp; f\/7.68 (w\/ Focal Reducer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Gathering Power\u003c\/td\u003e\n\u003ctd\u003e254X\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003eInternal Dual Speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Mirror Coating\u003c\/td\u003e\n\u003ctd\u003eMulti-coated Precision Aluminum Coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSecondary Mirror Coating\u003c\/td\u003e\n\u003ctd\u003e99% Reflectivity Dielectric Coatings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdapter Thread\u003c\/td\u003e\n\u003ctd\u003eSCT Male thread (2\" 24TPI)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e2934g \/ 6.47lb\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\"\u003eMK127 Maksutov-Cassegrain OTA\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e0.65x Focal Reducer\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSCT to 2\" Mount Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSCT to 1.25\" Mount w\/ T Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25-inch Dust Plug\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eMetal Objective Lens Cover\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eVixen Style Dovetail Plate 210mm\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eVersatile Dovetail Mounting Base\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eScrews\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 10\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eUser Manual\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\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861222846749,"sku":"SV-F9382C","price":574.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-Maksutov-Cassegrain-Telescope-for-Planetary-Observation-MK127-1_95fce2f1-88b8-4e42-a432-f8ada06961ea.jpg?v=1788883057"},{"product_id":"svbony-mk105-105mm-maksutov-cassegrain-telescope-ota","title":"SVBONY MK105 105mm Maksutov-Cassegrain Telescope OTA","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e105mm Maksutov-Cassegrain Optics\u003c\/li\u003e\n\u003cli\u003e1365mm Focal Length\u003c\/li\u003e\n\u003cli\u003ef\/13 Focal Ratio\u003c\/li\u003e\n\u003cli\u003eWeighs Only 4.83 lbs (2193g)\u003c\/li\u003e\n\u003cli\u003e377mm Optical Tube Length\u003c\/li\u003e\n\u003cli\u003eDual Finder Mounting Shoes\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\u003eSvbony MK105 Maksutov Cassegrain OTA 105mm Telescope\u003c\/h2\u003e\n\u003cp\u003eThe Svbony MK105 Maksutov Cassegrain OTA packs a powerful 1365mm focal length into a tube just 377mm long, using its 105mm aperture to achieve a planetary-friendly f\/13 focal ratio. Weighing only 4.83 lbs, this optical tube assembly delivers the high-magnification views of a much larger refractor in a package built for travel. With a theoretical resolution of 1.1 arc seconds and 210x light gathering power over the naked eye, the MK105 is engineered specifically for detailed observation of the Moon and planets.\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\u003eMaksutov-Cassegrain Optics: A 1365mm Focal Length for High-Power Views\u003c\/h3\u003e\n\u003cp\u003eThe MK105's design prioritizes high-magnification clarity. Its 1365mm focal length and slow f\/13 focal ratio are ideal for pushing magnification on bright targets like Jupiter's cloud bands, Saturn's rings, and lunar craters. The Maksutov corrector lens and multi-coated primary mirror work together to produce sharp, high-contrast images with minimal chromatic aberration, a common issue in refractors at this price point.\u003c\/p\u003e\n\u003cp\u003eThis long focal length makes it easy to achieve high power with common Plössl eyepieces. While its narrow field of view is a trade-off for deep-sky objects, its optical design excels at splitting close double stars and resolving fine detail on solar system targets down to its 12.1 limiting magnitude.\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\u003eCompact Portability: Just 4.83 lbs and 377mm Long\u003c\/h3\u003e\n\u003cp\u003eAt only 4.83 lbs (2193g) and 377mm in length, the MK105 is a true \"grab-and-go\" instrument. This compact form factor is a direct benefit of the folded light path of the Maksutov-Cassegrain design, achieving a long focal length in a tube less than half the size of an equivalent refractor. The internal focusing mechanism further reduces its footprint by eliminating the need for an external drawtube.\u003c\/p\u003e\n\u003cp\u003eThe metal optical tube ensures the internal components remain collimated during transport, making it a reliable choice for trips to dark-sky sites or for quick backyard sessions. It mounts securely via its attached 160mm Vixen-style dovetail bar, compatible with a wide range of popular astronomical mounts.\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 Finder Shoe Design: Mount 2 Accessories without Drilling\u003c\/h3\u003e\n\u003cp\u003eA standout feature of the MK105 is its inclusion of two separate finder mounting bases. This allows you to mount both a zero-magnification red-dot finder for initial aiming and a magnified finderscope or small guidescope simultaneously. This dual-mount capability provides flexibility for both visual observers and aspiring imagers without requiring any modification to the optical tube.\u003c\/p\u003e\n\u003cp\u003eFor astrophotography, the rear of the telescope features a standard M42x0.75 T-thread. This allows for direct, secure attachment of a DSLR or dedicated astronomy camera with the appropriate T-ring, providing a solid connection for capturing high-resolution images of the Moon and planets.\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\u003eSvbony MK105 vs. an 80mm Refractor: Focal Length and Portability\u003c\/h3\u003e\n\u003cp\u003eWhen choosing a portable telescope, a common comparison is between a Maksutov like the MK105 and a short-tube 80mm refractor.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e80mm Refractor Advantage:\u003c\/strong\u003e A typical 80mm f\/7 refractor offers a much wider field of view and a faster focal ratio. This makes it better suited for observing large deep-sky objects like the Andromeda Galaxy (M31) or the Pleiades (M45).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSvbony MK105 Advantage:\u003c\/strong\u003e The MK105's 1365mm focal length is more than double that of a typical 80mm refractor's 560mm. This provides significantly higher magnification for the same eyepiece, making it far superior for planetary and lunar detail. The MK105 is also dramatically more compact and often lighter than a refractor with a similar aperture.\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\"\u003eHow does the Svbony MK105 perform on planets like Jupiter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Svbony MK105 is an excellent choice for planetary viewing. Its long 1365mm focal length and f\/13 ratio provide the high magnification needed to resolve details like Jupiter's main cloud bands and Great Red Spot, the Cassini Division in Saturn's rings, and the polar ice caps on Mars when it is near opposition.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of mount do I need for the Svbony MK105 OTA?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith a weight of only 4.83 lbs, the MK105 is very lightweight and works well on a variety of mounts. For visual use, a sturdy alt-azimuth mount like an Explore Scientific Twilight I or Sky-Watcher AZ-GTe will be sufficient. For planetary imaging, a small equatorial mount like the Sky-Watcher EQM-35 or Star Adventurer GTi is recommended for tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Svbony MK105 for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the MK105 is well-suited for high-magnification lunar and planetary astrophotography. The M42x0.75 T-thread on the back allows for direct connection to a DSLR or a high-frame-rate planetary camera. Its slow f\/13 focal ratio makes it less ideal for faint deep-sky objects, which require faster optics.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy does the Svbony MK105 have two finder mounting bases?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe dual mounting bases provide added flexibility. You can mount two different aiming devices at once, such as a red-dot finder for quickly locating objects and a traditional magnified finderscope for precise centering. This is a useful feature that is uncommon on telescopes in this price range.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Svbony MK105 a good telescope for a beginner?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe MK105 can be a great second telescope or a first choice for a beginner specifically interested in the Moon and planets. Its rugged, portable design and sharp optics are major advantages. However, because this is an Optical Tube Assembly (OTA) only, a beginner will need to purchase a mount, tripod, diagonal, and eyepieces separately to have a complete, usable setup.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat accessories do I need to start observing with the MK105?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eSince this is the optical tube only, you will need several items to begin observing:\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eA 1.25\" star diagonal\u003c\/li\u003e\n\u003cli\u003eOne or two 1.25\" eyepieces (a 25mm for low power and a 10mm for high power is a good start)\u003c\/li\u003e\n\u003cli\u003eA finder scope or red-dot finder\u003c\/li\u003e\n\u003cli\u003eAn astronomical mount and tripod\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eMaksutov-Cassegrain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e105mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e1365mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/13\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1.1 arc second\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLimiting Magnitude\u003c\/td\u003e\n\u003ctd\u003e12.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Gathering Power\u003c\/td\u003e\n\u003ctd\u003e210x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Mirror\u003c\/td\u003e\n\u003ctd\u003eMulti-coated Precision Aluminum Coating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocusing Mechanism\u003c\/td\u003e\n\u003ctd\u003eInternal Optical Tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccessory Mounting\u003c\/td\u003e\n\u003ctd\u003e2x Finder-style mounting bases\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear Port Thread\u003c\/td\u003e\n\u003ctd\u003eM42x0.75 for T-ring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Tube Length\u003c\/td\u003e\n\u003ctd\u003e377mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Tube Diameter\u003c\/td\u003e\n\u003ctd\u003e119mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e2193g \/ 4.83lbs\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\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_MK105_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSvbony MK105 OTA with 160mm 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\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_MK105_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSvbony Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861223928093,"sku":"SV-F9382A","price":322.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-MK105-Maksutov-Cassegrain-OTA-105mm-Telescope-160mm-Dovetail-1_0ee3b3b1-98eb-487a-8f0e-5fb4fec2efbe.jpg?v=1788659416"},{"product_id":"svbony-mk90-90mm-maksutov-cassegrain-telescope-ota","title":"SVBONY MK90 90mm Maksutov-Cassegrain Telescope OTA","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e90mm Aperture\u003c\/li\u003e\n\u003cli\u003eMaksutov-Cassegrain Optical Design\u003c\/li\u003e\n\u003cli\u003eInternal Baffling for Stray Light Control\u003c\/li\u003e\n\u003cli\u003e70mm Vixen-Style Dovetail Plate\u003c\/li\u003e\n\u003cli\u003eStandard 1.25-inch Focuser\u003c\/li\u003e\n\u003cli\u003eUNC ¼-20 Tripod Mounting Hole\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\u003eSvbony MK90 90mm Maksutov-Cassegrain Telescope\u003c\/h2\u003e\n\u003cp\u003eThe Svbony MK90 puts a 90mm Maksutov-Cassegrain optical system into a highly portable package for detailed lunar, planetary, and terrestrial viewing. It connects to standard astronomical mounts using the included 70mm Vixen-style dovetail plate and is compatible with all 1.25-inch eyepieces and accessories.\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 90mm Maksutov-Cassegrain Optical System\u003c\/h3\u003e\n\u003cp\u003eThe MK90's two-element Maksutov-Cassegrain optics deliver the sharp, high-contrast images this design is known for. The 90mm aperture gathers enough light for definitive views of the Moon's craters, Jupiter's cloud belts, and the rings of Saturn. This long focal length design excels at high magnification, making it an ideal instrument for planetary observers who need crisp detail.\u003c\/p\u003e\n\u003cp\u003eWhile perfect for celestial targets, the Maksutov design also produces a correctly oriented image (with an optional diagonal), making the MK90 a powerful spotting scope for daytime bird watching and nature observation. The trade-off for its high-power planetary resolution is a narrower field of view compared to a short-tube refractor, making it less suited for sweeping across the widest sections of the Milky Way.\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\u003eAdvanced Internal Baffling for High-Contrast Views\u003c\/h3\u003e\n\u003cp\u003eSvbony has engineered the MK90 with a tapered internal baffle tube specifically designed to intercept and absorb stray light. This feature is critical for maintaining image contrast, especially when observing bright objects like the Moon or planets against the blackness of space. By preventing off-axis light from reaching the focal plane, the background sky remains darker and subtle surface details are more easily visible.\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 Versatile 70mm Vixen Dovetail \u0026amp; Tripod Mount\u003c\/h3\u003e\n\u003cp\u003eThe MK90 optical tube is built for versatility in the field. It includes a 70mm Vixen-style dovetail plate, the de-facto standard for most modern astronomical alt-azimuth and equatorial mounts. For more casual or terrestrial use, the mounting base also includes a standard UNC ¼-20 threaded hole, allowing you to attach the telescope directly to a sturdy photographic tripod without any additional hardware.\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 kind of mount do I need for the Svbony MK90 telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Svbony MK90 is very flexible. It comes with a \u003cstrong\u003e70mm Vixen-style dovetail plate\u003c\/strong\u003e that fits most modern astronomical mounts, like the Celestron AVX or Sky-Watcher EQ6-R. It also has a standard \u003cstrong\u003e¼-20 threaded hole\u003c\/strong\u003e, so you can mount it directly onto a heavy-duty photo or video tripod for daytime use or quick astronomical viewing sessions.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Svbony MK90 good for bird watching?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent choice for terrestrial viewing like bird watching. The Maksutov-Cassegrain design provides high magnification and sharp images. When used with a 1.25-inch correct-image prism diagonal (sold separately), the view will be upright and correctly oriented left-to-right, making it easy to track moving subjects.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the internal baffle in the Svbony MK90 improve views?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe internal baffle is a tube inside the telescope that blocks stray light from bouncing around and washing out the image. This results in a \u003cstrong\u003edarker sky background and higher contrast\u003c\/strong\u003e, which is especially important for seeing faint details on planets or separating the subtle shades in lunar craters.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I see the rings of Saturn with the Svbony MK90?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The 90mm aperture and long focal length of the Svbony MK90 are ideal for Saturn. On a night with steady air, you will be able to clearly resolve the rings as distinct from the planet itself and may even glimpse the Cassini Division, the largest gap in the rings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the Svbony MK90 perform for observing the Moon from a light-polluted city?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Moon is bright enough to be unaffected by light pollution, and the Svbony MK90 is an excellent instrument for lunar observation from any location. Its high-resolution optics will allow you to explore mountain ranges, craters, and rilles in sharp detail, even from a city balcony.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat eyepieces should I start with for the Svbony MK90?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA good starting set for the Svbony MK90 would include two 1.25-inch Plössl eyepieces:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA low-power eyepiece (around 25mm-32mm)\u003c\/strong\u003e for finding objects and wide views.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eA high-power eyepiece (around 9mm-12mm)\u003c\/strong\u003e for detailed views of the Moon and planets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eMaksutov-Cassegrain\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e90 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e1.25-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003e70mm Vixen-Style Dovetail \u0026amp; UNC ¼-20 Thread\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\"\u003eMK90 Maksutov-Cassegrain OTA\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eVersatile Dovetail Mounting Base\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eVixen Style Dovetail Plate (70mm)\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eObjective Lens Cover\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25-inch Dust Plug\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\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSvbony 2-Year Warranty\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861224255773,"sku":"SV-F9382B","price":238.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-MK90-90mm-Maksutov-Cassegrain-Telescope-Lunar-Bird-Watching-1_d0a6a0b8-aa57-406f-8acf-de8e00347bfc.jpg?v=1788659429"},{"product_id":"svbony-sv48p-90mm-f-5-5-achromatic-refractor-telescope-ota","title":"SVBONY SV48P 90mm f\/5.5 Achromatic Refractor Telescope OTA","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e90mm Aperture\u003c\/li\u003e\n\u003cli\u003e500mm Focal Length (f\/5.5)\u003c\/li\u003e\n\u003cli\u003eAchromatic Doublet Lens\u003c\/li\u003e\n\u003cli\u003e2-inch Dual-Speed Rack-and-Pinion Focuser\u003c\/li\u003e\n\u003cli\u003eFully Multi-Coated (FMC) Optics\u003c\/li\u003e\n\u003cli\u003eNet Weight: 2730g (96.3oz)\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\u003eSVBONY SV48P 90mm f\/5.5 Achromatic Refractor Telescope OTA\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV48P combines a 90mm aperture with a fast f\/5.5 focal ratio, creating a 500mm focal length optical tube assembly built for wide-field astrophotography. Its air-spaced achromatic doublet lens uses ZF4\/K9 glass to gather significant light, while the 2-inch dual-speed Rack-and-Pinion focuser provides the fine control needed for critical camera focus. Weighing just 2730g, this OTA is a practical match for many portable equatorial mounts.\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\u003e90mm f\/5.5 Optics: A Wide-Field Imaging Platform\u003c\/h3\u003e\n\u003cp\u003eThe SV48P's optical design is centered on capturing large swaths of the night sky. The 90mm objective lens gathers more light than smaller 80mm refractors, and the short 500mm focal length (f\/5.5) creates a bright, expansive field of view. This combination is ideal for framing large deep-sky objects like the Andromeda Galaxy (M31) or the North American Nebula (NGC 7000) on a camera sensor.\u003c\/p\u003e\n\u003cp\u003eAs an achromatic refractor, the SV48P offers excellent contrast and sharpness for its price, making it an accessible entry point into imaging. However, its doublet design means some chromatic aberration (a purple fringe on bright stars) is expected, a typical trade-off for the affordability and fast focal ratio compared to more expensive apochromatic (APO) designs.\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 2-inch Dual-Speed Focuser: Precision for Astrophotography\u003c\/h3\u003e\n\u003cp\u003eAchieving sharp focus is non-negotiable in astrophotography, and the SV48P is equipped with a robust 2-inch rack-and-pinion (RAP) focuser to meet this demand. The dual-speed mechanism features a 1:10 reduction ratio, allowing you to make extremely fine adjustments with the smaller knob, ensuring stars are tight and focused. This level of control is crucial when imaging with DSLRs or dedicated astronomy cameras.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-inch Barrel:\u003c\/strong\u003e Accommodates wide-field 2-inch eyepieces, diagonals, and camera adapters for maximum flexibility and illumination of larger sensors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.25-inch Adapter:\u003c\/strong\u003e A step-down adapter is included, providing compatibility with the vast majority of standard eyepieces and accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRack-and-Pinion Design:\u003c\/strong\u003e Offers a higher load capacity than basic Crayford focusers, reducing slippage when using heavier imaging trains.\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\u003eA 2730g OTA: Designed for Portable Mounts\u003c\/h3\u003e\n\u003cp\u003eAt a net body weight of 2730g (96.3 oz), the SV48P optical tube assembly is light enough to be carried effectively by a wide range of entry-level and portable equatorial mounts. This makes it an excellent choice for a \"grab-and-go\" imaging rig or for traveling to dark sky sites. The 108mm tube outer diameter is standard, allowing for easy mounting with common tube ring sizes.\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\u003eSVBONY SV48P vs. an 80mm ED Refractor: Aperture vs. Color Correction\u003c\/h3\u003e\n\u003cp\u003eWhen considering the SV48P, a common comparison is against an 80mm ED doublet refractor. The choice between them depends on your primary goal and budget.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe ED Refractor's Advantage:\u003c\/strong\u003e An 80mm ED scope will use extra-low dispersion glass to virtually eliminate the chromatic aberration (purple fringing) seen in the SV48P. This results in higher-fidelity color on bright stars and is a significant optical advantage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThe SV48P's Advantage:\u003c\/strong\u003e The SV48P offers a larger 90mm aperture, which translates to roughly 26% more light-gathering power than an 80mm scope. This allows for slightly shorter exposures on faint nebulae. Most significantly, the SV48P achieves this larger aperture at a much more accessible price point, making it a compelling option for those starting in wide-field imaging.\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 SVBONY SV48P 90mm OTA best suited for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV48P is primarily designed for wide-field astrophotography of large deep-sky objects like nebulae and galaxies, thanks to its fast \u003cstrong\u003ef\/5.5 focal ratio\u003c\/strong\u003e and \u003cstrong\u003e500mm focal length\u003c\/strong\u003e. It also serves as a great rich-field visual telescope for sweeping the Milky Way with a low-power 2-inch eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the SV48P 90mm perform on bright targets like Jupiter or the Moon?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFor visual use, the SV48P will show details like Jupiter's main cloud belts and the Moon's craters. However, as an achromatic refractor, you will notice some chromatic aberration (a purple or blue halo) around the edges of these bright objects. This is a normal characteristic of this optical design and is most prominent at high magnification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SVBONY SV48P for imaging with a portable star tracker?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. With a net weight of only \u003cstrong\u003e2730g\u003c\/strong\u003e, the SV48P OTA is light enough for many higher-capacity star trackers and small equatorial mounts. Its \u003cstrong\u003e500mm focal length\u003c\/strong\u003e is also forgiving enough for these mounts to produce sharp images of targets like the Andromeda Galaxy (M31) or the Orion Nebula (M42).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I see purple fringing (chromatic aberration) with the SV48P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, some purple fringing on the brightest stars is expected. The SVBONY SV48P is an \u003cstrong\u003eachromatic doublet refractor\u003c\/strong\u003e, which corrects for two wavelengths of light but allows some minor false color. This can be significantly reduced with post-processing techniques or by using a minus-violet or light pollution filter during imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat accessories do I need to start using the SV48P OTA?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV48P is sold as an Optical Tube Assembly (OTA) only. To use it, you will need to provide your own:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEquatorial or Alt-Az mount\u003c\/li\u003e\n\u003cli\u003eTube rings and dovetail bar\u003c\/li\u003e\n\u003cli\u003eStar diagonal (1.25\" or 2\")\u003c\/li\u003e\n\u003cli\u003eEyepieces (1.25\" or 2\") or a camera\u003c\/li\u003e\n\u003cli\u003eFinder scope or red dot finder\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 dual-speed focuser on the SV48P help with imaging?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe dual-speed focuser has two knobs. The larger knob makes coarse adjustments to find general focus quickly. The smaller knob moves the focuser at a \u003cstrong\u003e1:10 ratio\u003c\/strong\u003e, meaning one turn of the fine knob equals 1\/10th of a turn of the coarse knob. This allows for extremely precise adjustments, which are essential for getting perfectly sharp stars in your astrophotos.\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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e90mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e500mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003eF\/5.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Lens Design\u003c\/td\u003e\n\u003ctd\u003eDoublet air spaced achromatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Glass\u003c\/td\u003e\n\u003ctd\u003eZF4\/K9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated (FMC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2-inch Rack-and-Pinion (RAP) Double-speed Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Barrel Diameter\u003c\/td\u003e\n\u003ctd\u003e2-inch (with 1.25-inch adapter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Outer Diameter\u003c\/td\u003e\n\u003ctd\u003e108mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Body Weight\u003c\/td\u003e\n\u003ctd\u003e2730g \/ 96.3oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePacking Dimensions\u003c\/td\u003e\n\u003ctd\u003e490 x 215 x 230mm\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\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV48P_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSVBONY SV48P 90mm f\/5.5 Refractor OTA\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25-inch Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eLens Cover\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Plug\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\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861224485149,"sku":"SV-F9341A","price":293.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV48P-90mm-f-5-5-Achromatic-Refractor-Telescope-OTA-for-Imaging-1_545789b5-46f7-46f3-9746-8bd86f76b3c8.jpg?v=1788884029"},{"product_id":"svbony-sv48p-102mm-f-6-5-achromatic-refractor-telescope-ota","title":"SVBONY SV48P 102mm f\/6.5 Achromatic Refractor Telescope OTA","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e102mm Aperture\u003c\/li\u003e\n\u003cli\u003e663mm Focal Length (f\/6.5)\u003c\/li\u003e\n\u003cli\u003eAchromatic Doublet Lens\u003c\/li\u003e\n\u003cli\u003e2.5-inch Dual-Speed RAP Focuser\u003c\/li\u003e\n\u003cli\u003e210mm Vixen-Style Dovetail\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\u003eSvbony SV48P 102mm F6.5 Achromatic Refractor Telescope\u003c\/h2\u003e\n\u003cp\u003eThe Svbony SV48P refractor combines a 102mm air-spaced doublet objective with a versatile f\/6.5 focal ratio, making it an excellent instrument for wide-field views of deep-sky objects. With a focal length of 663mm, this telescope delivers bright images of nebulae and galaxies, while its heavy-duty 2.5-inch dual-speed Rack and Pinion (RAP) focuser provides the stability and precision required for both visual astronomy and imaging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 102mm f\/6.5 Achromatic Objective\u003c\/h3\u003e\n\u003cp\u003eThe heart of the SV48P is its 102mm objective lens, which gathers significantly more light than smaller beginner refractors, resolving finer detail in star clusters and brighter nebulae. The f\/6.5 focal ratio strikes a balance between the fast, wide fields of a rich-field telescope and the higher magnification potential of a longer instrument, making it well-suited for observing large targets like the Andromeda Galaxy (M31) or the Orion Nebula (M42).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eFully Multi-Coated (FMC):\u003c\/strong\u003e All air-to-glass surfaces are coated to maximize light transmission and contrast, producing brighter and more color-accurate images.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAchromatic Design:\u003c\/strong\u003e As a doublet achromat, the SV48P offers sharp, high-contrast views. Observers should note that some minor chromatic aberration, or false color, will be visible on extremely bright targets like Jupiter or Sirius, which is characteristic of this optical design.\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\u003e2.5-inch Dual-Speed RAP Focuser\u003c\/h3\u003e\n\u003cp\u003eUnlike standard entry-level focusers, the SV48P is equipped with a 2.5-inch dual-speed Rack and Pinion unit. This larger, more robust design prevents flexure and wobble when using heavy 2-inch eyepieces or a DSLR camera. The dual-speed control allows for rapid coarse adjustments to find initial focus, while the fine-focus knob enables critical, tack-sharp adjustments for high-magnification viewing or imaging.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrecise Adjustments:\u003c\/strong\u003e Millimeter markings on the drawtube allow you to easily return to a known focus point for different eyepieces or camera setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSecure Connection:\u003c\/strong\u003e The focuser accepts 2-inch accessories directly and includes a 1.25-inch adapter, both using compression rings to securely hold your gear without marring the barrels.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMounting Stability:\u003c\/strong\u003e The optical tube is held by a set of solid rings attached to a 210mm Vixen-style dovetail plate, ensuring a secure connection to a wide range of equatorial and alt-azimuth mounts.\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 are the best objects to observe with the Svbony SV48P 102mm telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV48P's \u003cstrong\u003e102mm aperture\u003c\/strong\u003e and \u003cstrong\u003ef\/6.5 focal ratio\u003c\/strong\u003e make it ideal for wide-field deep-sky objects. It excels at framing large open star clusters like the Pleiades (M45), diffuse nebulae like the North American Nebula (NGC 7000), and large galaxies like the Andromeda Galaxy (M31).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I see color fringing with the Svbony SV48P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, as a doublet \u003cstrong\u003eachromatic refractor\u003c\/strong\u003e, the SV48P will exhibit some chromatic aberration (false color, typically a purple fringe) on very bright objects. This will be most noticeable on the limb of the Moon, planets like Jupiter and Venus, and bright stars. This is an expected trade-off for the affordability and simplicity of this optical design.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of mount is required for the SV48P 102mm refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe telescope has a net weight of \u003cstrong\u003e3400g (7.5 lbs)\u003c\/strong\u003e. You will need a sturdy astronomical mount with a Vixen-style saddle that is rated to carry at least 10-12 lbs to ensure stability. An equatorial mount like a Celestron AVX or Sky-Watcher EQM-35 would be a good match for both visual use and entry-level astrophotography.\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 2.5-inch dual-speed focuser on the SV48P?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e2.5-inch dual-speed RAP focuser\u003c\/strong\u003e offers two main advantages. The large diameter provides a rigid, stable platform for heavy accessories like 2-inch eyepieces or cameras, preventing image shift. The dual-speed control allows you to make large focus changes quickly with the coarse knob and then use the 10:1 fine-focus knob to achieve critical sharpness, which is essential for astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the Orion Nebula (M42) look through the Svbony SV48P in a suburban sky?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eFrom a typical suburban location, the SV48P's \u003cstrong\u003e102mm objective\u003c\/strong\u003e will easily reveal the bright core of the Orion Nebula, including the four prominent stars of the Trapezium. With a low-power 2-inch eyepiece, you can frame the entire \"sword\" region. The f\/6.5 optics will provide a bright enough image to show the extended nebulosity and wispy \"wings\" of M42, especially when using a UHC or light pollution filter.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Svbony SV48P for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the SV48P is a capable telescope for starting in astrophotography, particularly for wider-field images of star clusters and large nebulae. Its robust \u003cstrong\u003e2.5-inch focuser\u003c\/strong\u003e can handle the weight of a DSLR or a dedicated astronomy camera. For best results, pairing it with a field flattener is recommended to correct for field curvature at the edges of the 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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eRefractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e102mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e663mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003eF\/6.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Lens\u003c\/td\u003e\n\u003ctd\u003eDoublet air spaced achromatic design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eFully Multi-Coated (FMC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2.5-inch RAP Double Speed Focuser\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Barrel Diameter\u003c\/td\u003e\n\u003ctd\u003e2-inch (with 1.25-inch adapter)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDrawtube Markings\u003c\/td\u003e\n\u003ctd\u003eYes, millimeter markings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser Rotation\u003c\/td\u003e\n\u003ctd\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount Type\u003c\/td\u003e\n\u003ctd\u003eVixen-style Dovetail Plate\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDovetail Plate Length\u003c\/td\u003e\n\u003ctd\u003e210mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinder Scope Bracket\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Dust Plug\u003c\/td\u003e\n\u003ctd\u003eOne 1.25\" dust plug\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e3400g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e720 x 270 x 230mm\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\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV48P_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV48P_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861224583453,"sku":"SV-F9341C","price":322.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV48P-102mm-F6-5-Achromatic-Refractor-Telescope-with-2-5-RAP-1_6e073473-1ec6-42a7-88a7-7e27bc0269f9.jpg?v=1788884012"},{"product_id":"svbony-sv501p-70-400-portable-refractor-telescope","title":"SVBONY SV501P 70\/400 Portable Refractor Telescope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e70mm Aperture Refractor\u003c\/li\u003e\n\u003cli\u003e400mm Focal Length\u003c\/li\u003e\n\u003cli\u003eF5.7 Focal Ratio\u003c\/li\u003e\n\u003cli\u003eIncludes 20mm Kellner Eyepiece (20x)\u003c\/li\u003e\n\u003cli\u003e45° Correct-Image Prism Diagonal for Terrestrial Viewing\u003c\/li\u003e\n\u003cli\u003eLightweight 2950g Total Kit Weight\u003c\/li\u003e\n\u003cli\u003eIncludes Aluminum Tripod and Carrying Backpack\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\u003eSVBONY SV503 70mm f\/5.7 ED Refractor Telescope\u003c\/h2\u003e\n      \u003cp\u003eThe SVBONY SV501P is a complete refractor package designed for portability and immediate use, combining a 70mm aperture with a fast 400mm focal length. Its F5.7 optical system captures wide fields of view, ideal for sweeping the Milky Way or observing large star clusters. The entire kit weighs just 2950g and includes a K 20mm eyepiece, a 5x24 finder scope, and a travel backpack, making it a true grab-and-go instrument.\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\u003e70mm Aperture and F5.7 Optics for Wide-Field Views\u003c\/h3\u003e\n      \u003cp\u003eThe telescope's optical system is built around a 70mm objective lens with a 400mm focal length. This combination produces a fast F5.7 focal ratio, which delivers a very wide true field of view, allowing you to frame large celestial objects like the Andromeda Galaxy (M31) or the Pleiades (M45) in their entirety with the included 20mm eyepiece. The multi-coated lenses ensure bright, high-contrast images, whether you are observing star fields or using the scope for daytime nature watching.\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 Complete 20x Ready-to-Observe Kit\u003c\/h3\u003e\n      \u003cp\u003eThis package includes everything needed for your first night out. The K 20mm eyepiece provides a 20x magnification, perfect for wide-field scanning. The included 45° correct-image prism diagonal orients the view correctly up-down and left-right, making the telescope intuitive to use for terrestrial targets like birds or distant landscapes. A 5x24 optical finder scope helps you locate and center objects before viewing them in the main eyepiece.\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\u003e2950g Grab-and-Go Design with Included Backpack\u003c\/h3\u003e\n      \u003cp\u003eWeighing only 2950g, the entire telescope, tripod, and accessory kit is exceptionally lightweight and portable. The tool-free assembly and stable SV101 aluminum alloy tripod allow for setup in minutes. Everything packs neatly into the included backpack, protecting the instrument and making it easy to transport to dark-sky sites, campsites, or your own backyard.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat can I see with the SVBONY 70mm refractor?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe 70mm aperture is excellent for observing bright celestial objects. You can expect detailed views of the Moon's craters, the rings of Saturn, Jupiter's cloud belts and its four Galilean moons, and the phases of Venus. For deep-sky objects, it will reveal large open star clusters like the Pleiades (M45), bright nebulae like the Orion Nebula (M42), and the core of the Andromeda Galaxy (M31).\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY 70mm telescope good for terrestrial (daytime) viewing?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, it's an excellent choice for daytime use. The included \u003cstrong\u003e45° correct-image prism diagonal\u003c\/strong\u003e ensures that images are correctly oriented both vertically and horizontally, just like looking through binoculars. This makes it easy and intuitive to use for birdwatching, nature observation, or viewing distant landscapes.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the SVBONY 70mm telescope perform on the Moon in my backyard?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eWith its 400mm focal length and the included 20mm eyepiece (20x), you'll get a wide view of the entire lunar disk with room to spare. This magnification is perfect for tracking the Moon's phases and identifying major seas and large craters. For higher power to see more crater detail, you can add a shorter focal length eyepiece (sold separately).\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWill the 2950g weight of the SVBONY kit be easy to travel with?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. At just 2950g (about 6.5 lbs) for the entire setup, this telescope is exceptionally portable. The included backpack is designed to carry the optical tube, tripod, and all accessories securely, making it an ideal companion for camping trips, hiking to a dark location, or simply carrying it into the backyard without any hassle.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use different eyepieces with the SVBONY 70mm refractor?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes. The telescope uses a standard \u003cstrong\u003e1.25\" focuser and diagonal\u003c\/strong\u003e, which is the most common size for eyepieces. You can expand your magnification options by purchasing additional 1.25\" eyepieces. A 10mm eyepiece, for example, would give you 40x magnification for closer views of planets and the Moon.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow do I find objects with the 5x24 finder scope?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThe \u003cstrong\u003e5x24 finder scope\u003c\/strong\u003e provides a much wider field of view than the main telescope at low magnification. You first look through the finder to locate your target, center it in the crosshairs, and it will then be visible in the main telescope's eyepiece. It's essential to align the finder with the main telescope during the daytime before your first observing session.\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\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eRefractor\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e70 mm \/ 2.75\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e400 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003eF5.7\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eObjective Lens\u003c\/td\u003e\n\u003ctd\u003e2 Elements in 2 Groups\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eMulti-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eIncluded Eyepiece\u003c\/td\u003e\n\u003ctd\u003eK 20 mm 1.25\" (20x)\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eFinder Scope\u003c\/td\u003e\n\u003ctd\u003e5x24 Optical\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eDiagonal\u003c\/td\u003e\n\u003ctd\u003eCorrect-Image Prism 45° 1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTripod\u003c\/td\u003e\n\u003ctd\u003eSV101 Aluminum Alloy Tripod\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eBackpack Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eTotal Weight\u003c\/td\u003e\n\u003ctd\u003e2950g\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\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV501P_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e70mm f\/5.7 Optical Tube Assembly\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eSV101 Aluminum Alloy Tripod\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eAlt-Azimuth Mount\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eK 20 mm Eyepiece (1.25\")\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e45° Correct-Image Prism Diagonal (1.25\")\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003e5x24 Finder Scope with Bracket\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003ePortable Backpack\u003c\/p\u003e\n        \u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n      \u003c\/div\u003e\n    \u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n      \u003cdiv\u003e\n        \u003cp class=\"DAV-item-title\"\u003eLens Cover\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\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861224747293,"sku":"SV-F9348A","price":224.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/f9348a-0_20251231163208_1701_webp_17530fc4-1e89-4250-9164-8e02e0b2ebaa.avif?v=1790283525"},{"product_id":"svbony-sv503-102mm-f-7-ed-doublet-refractor-telescope-ota","title":"SVBONY SV503 102mm f\/7 ED Doublet Refractor Telescope OTA","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e102mm Aperture ED Doublet Refractor\u003c\/li\u003e\n\u003cli\u003e714mm Focal Length (f\/7)\u003c\/li\u003e\n\u003cli\u003eS-FPL51 Extra-Low Dispersion Glass\u003c\/li\u003e\n\u003cli\u003e1:10 Dual-Speed Rack \u0026amp; Pinion Focuser\u003c\/li\u003e\n\u003cli\u003e101.9mm of Back Focus\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\u003eSVBONY SV503 102mm f\/7 ED Doublet Refractor OTA\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV503 102mm f\/7 ED Doublet Refractor combines a 102mm aperture with S-FPL51 extra-low dispersion glass to deliver high-contrast images with minimal chromatic aberration. Its 714mm focal length provides a versatile f\/7 focal ratio suitable for a wide range of celestial targets, while the optical system achieves a theoretical resolving capacity of 1.17 arc-seconds. With a light gathering capacity 212 times that of the human eye, this telescope makes faint deep-sky objects accessible for both imaging and visual observation.\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\u003eS-FPL51 ED Optics: A 102mm f\/7 Doublet for High-Contrast Imaging\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the SV503 is an air-spaced doublet objective featuring S-FPL51 ED glass, which significantly reduces false color (chromatic aberration) common in standard achromats. This correction results in sharp, high-contrast views of bright objects like Jupiter and the lunar terminator, with Super Multi-Coating (SMC) ensuring maximum light transmission. The 102mm aperture and moderate f\/7 focal ratio create a capable deep-sky instrument, resolving stars down to magnitude 12.1 under dark skies.\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\u003e1:10 Dual-Speed Focuser: 101.9mm of Back Focus for Imaging Trains\u003c\/h3\u003e\n\u003cp\u003eThe SV503 is equipped with a robust Rack and Pinion (RAP) focuser, which eliminates the slippage and flexure associated with Crayford designs when supporting heavy imaging equipment. A 1:10 fine-focus knob allows for the critical adjustments needed to achieve sharp stars in astrophotography. With a generous 101.9mm of back focus, you have ample room to accommodate a full imaging train, including filter wheels, off-axis guiders, and dedicated astronomy cameras.\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\u003eImaging-Ready Build: A 5.7kg OTA with a 200mm Dovetail\u003c\/h3\u003e\n\u003cp\u003eConstructed from aluminum, the optical tube assembly measures 630mm in length and weighs 5.7kg with the included rings and dovetail, making it a stable and manageable payload for mid-range equatorial mounts. The package includes a 200mm long Vixen-style dovetail bar, providing a secure connection to your mount and allowing for easy balancing adjustments. This combination of moderate weight and rigid construction ensures the stability required for long-exposure astrophotography.\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\u003eSVBONY SV503 102mm vs. 80mm: Aperture and Light Gathering\u003c\/h3\u003e\n\u003cp\u003eWhile both the 102mm and 80mm SV503 models share the same f\/7 focal ratio and S-FPL51 glass, the choice between them comes down to aperture and portability. The SV503 102mm offers a clear advantage in light-gathering power and resolution, making it the superior choice for imaging smaller galaxies, resolving globular clusters, and capturing fine planetary detail.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSV503 102mm:\u003c\/strong\u003e Its larger aperture gathers 64% more light than the 80mm version, providing brighter images and revealing fainter details. This makes it better suited for targets where resolution is key.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSV503 80mm:\u003c\/strong\u003e The 80mm is significantly lighter and more compact, making it an ideal portable or \"grab-and-go\" telescope. Its shorter focal length (560mm) also provides a wider true field of view, which is advantageous for framing large emission nebulae like the North America Nebula (NGC 7000).\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 kind of mount is required for the SVBONY SV503 102mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith a tube weight of \u003cstrong\u003e5.7kg\u003c\/strong\u003e, the SV503 102mm OTA requires a sturdy equatorial mount for astrophotography. A mount with a payload capacity of at least 20-25 lbs (9-11 kg) is recommended to ensure stability for long exposures. Examples include mounts in the Celestron AVX or Sky-Watcher HEQ5 class.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the SVBONY SV503 102mm perform on the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e102mm aperture\u003c\/strong\u003e and \u003cstrong\u003e714mm focal length\u003c\/strong\u003e are well-suited for framing large targets like the Andromeda Galaxy (M31). You will be able to capture the bright galactic core and its surrounding dust lanes. For a full field of view that includes its satellite galaxies M32 and M110, you may need to use a dedicated focal reducer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the S-FPL51 glass in the SV503 102mm good enough for astrophotography?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. \u003cstrong\u003eS-FPL51\u003c\/strong\u003e is an extra-low dispersion glass that provides excellent color correction, especially for a doublet design. While a more expensive triplet apochromat will offer a higher degree of correction, the SV503 102mm delivers sharp, high-contrast images with minimal purple fringing on bright stars, making it a very capable and affordable entry into serious astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the 101.9mm back focus on the SV503 102mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e101.9mm of back focus\u003c\/strong\u003e is the distance from the focuser's flange to the focal plane. This generous distance is crucial for astrophotography as it provides enough space to install accessories like filter wheels, off-axis guiders, and astronomy cameras while still being able to reach focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SVBONY SV503 102mm for visual observing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. While optimized for imaging, the SV503 102mm is an excellent visual instrument. Its \u003cstrong\u003e102mm ED objective\u003c\/strong\u003e provides crisp, high-contrast views of the Moon, planets, and bright deep-sky objects. The \u003cstrong\u003e1:10 dual-speed focuser\u003c\/strong\u003e makes it easy to snap objects into perfect focus visually.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I see chromatic aberration with the SVBONY SV503 102mm ED doublet?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eS-FPL51 ED glass\u003c\/strong\u003e significantly suppresses chromatic aberration (false color). On extremely bright targets like Sirius or Vega at high magnification, a trace amount of residual color may be visible, which is typical for a doublet design. However, for the vast majority of astronomical targets, the color correction is excellent and will not detract from the view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Name\u003c\/td\u003e\n\u003ctd\u003eSVBONY SV503 102F7 ED Astronomy Telescope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eRefractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e102mm \/ 4.01-Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e714mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Lens\u003c\/td\u003e\n\u003ctd\u003eS-FPL51 ED Doublet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coating\u003c\/td\u003e\n\u003ctd\u003eSMC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003eRack and Pinion (RAP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGear Reduction\u003c\/td\u003e\n\u003ctd\u003e1:10 Dual-Speed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBack Focus\u003c\/td\u003e\n\u003ctd\u003e101.9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1.17\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLimiting Magnitude\u003c\/td\u003e\n\u003ctd\u003e12.1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight Gathering Power\u003c\/td\u003e\n\u003ctd\u003e212x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMax Useful Magnification\u003c\/td\u003e\n\u003ctd\u003e204x\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Material\u003c\/td\u003e\n\u003ctd\u003eAluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Weight (with rings)\u003c\/td\u003e\n\u003ctd\u003e5.7kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOTA Length\u003c\/td\u003e\n\u003ctd\u003e630mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Outer Diameter\u003c\/td\u003e\n\u003ctd\u003e121mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Hardware\u003c\/td\u003e\n\u003ctd\u003eDovetail \u0026amp; Rings Included\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDovetail Length\u003c\/td\u003e\n\u003ctd\u003e200mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Dimensions\u003c\/td\u003e\n\u003ctd\u003e690mm x 210mm x 250mm\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\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV503_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSV503 102mm f\/7 ED Refractor OTA\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTube 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\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e200mm Vixen-Style Dovetail Bar\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eLens Cover\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Dust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV503_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861224911133,"sku":"SV-F9359D","price":735.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-ED-Doublet-Refractor-Telescope-for-Astrophotography-SV503-102-1_4eabcc19-7193-438f-9fa5-298e4da81a5c.jpg?v=1788659463"},{"product_id":"svbony-sv503-70mm-f-6-78-quadruplet-ed-flatfield-refractor-telescope-ota","title":"SVBONY SV503 70mm f\/6.78 Quadruplet ED Flatfield Refractor Telescope OTA","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e70mm Aperture Quadruplet Astrograph\u003c\/li\u003e\n\u003cli\u003e474mm Focal Length (f\/6.78)\u003c\/li\u003e\n\u003cli\u003e32mm Corrected Flat-Field Image Circle\u003c\/li\u003e\n\u003cli\u003e2.5\" Rack-and-Pinion Focuser\u003c\/li\u003e\n\u003cli\u003e127.5mm Working Distance\u003c\/li\u003e\n\u003cli\u003eFPL51 and Lanthanum ED Glass Elements\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\u003eSVBONY SV503 70mm f\/6.78 ED Flatfield Refractor\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV503 70 refractor is a purpose-built astrograph, combining a 70mm aperture and 474mm focal length into a compact f\/6.78 optical system. Its 4-element design, featuring FPL51 and lanthanum glass, delivers a fully corrected 32mm flat-field image circle, eliminating the need for a separate flattener. Weighing just 5.9 lbs, this telescope provides a generous 127.5mm of working distance from its 2.5\" focuser for complex imaging trains.\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\u003eQuadruplet Optics: A 32mm Flat-Field Imaging Circle\u003c\/h3\u003e\n\u003cp\u003eThe SV503 70 integrates a 2-element objective with a 2-element corrector, creating a 4-element \"quadruplet\" design that corrects for field curvature internally. This system produces a 32mm diameter image circle with 100% correction, ensuring pinpoint stars across the frame of popular APS-C and smaller astronomy cameras. The use of FPL51 and lanthanum glass in the objective minimizes chromatic aberration for high-contrast images with true-to-life color.\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\u003eImaging-Ready Mechanics: 2.5\" Focuser and 127.5mm Back Focus\u003c\/h3\u003e\n\u003cp\u003eEngineered for astrophotography, the SV503 70 features a robust 2.5\" rack-and-pinion (RAP) focuser capable of supporting heavy camera packages without flexure or slippage. A critical feature for imagers is the 127.5mm (5\") of working distance available from the 2\" receptacle. This generous back focus provides ample room for adding accessories like filter wheels, off-axis guiders, and rotators into your optical train, while the M54x0.75 female thread offers a direct, secure connection.\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\u003eWide-Field Astrograph: 474mm Focal Length for Large Targets\u003c\/h3\u003e\n\u003cp\u003eWith its 474mm focal length, the SV503 70 is ideal for capturing expansive celestial objects that are too large for longer telescopes. This field of view is perfectly suited for framing the entirety of the Andromeda Galaxy (M31), the North American Nebula (NGC 7000), or vast star-forming regions in Cygnus. The f\/6.78 focal ratio provides a good balance between image scale and exposure time, making it an efficient instrument for gathering light on faint deep-sky targets.\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\u003eSV503 70 vs. a Standard ED Doublet: Integrated Flattener Advantage\u003c\/h3\u003e\n\u003cp\u003eWhile a standard 70mm ED doublet refractor may have a lower initial cost, it requires a separate field flattener to achieve the same photographic results as the SV503 70. This adds complexity and potential frustration in getting the spacing correct. The SV503's integrated quadruplet design offers a significant advantage:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Spacing Calculation:\u003c\/strong\u003e The flattener is built-in and permanently fixed at the optimal distance. You simply attach your camera and focus.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReduced Connections:\u003c\/strong\u003e A simpler, more rigid imaging train means less potential for tilt or flexure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCost-Effective System:\u003c\/strong\u003e When factoring in the price of a quality external flattener, the SV503 70 often represents a better total value for a complete imaging setup.\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 size camera sensor is the SVBONY SV503 70 best suited for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV503 70 provides a fully corrected, flat-field image circle of \u003cstrong\u003e32mm\u003c\/strong\u003e. This is ideal for cameras with APS-C format sensors and any smaller sensors, ensuring sharp, pinpoint stars from corner to corner without vignetting.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SVBONY SV503 70 for visual observing out of the box?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo. This telescope is an astrograph, meaning its focus point is optimized for a camera sensor placed far behind the focuser. To use it visually with an eyepiece, you will need to add a \u003cstrong\u003ediagonal or a 2\" extension tube\u003c\/strong\u003e to achieve focus.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow would the SV503 70 frame a large target like the Andromeda Galaxy (M31)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e474mm focal length\u003c\/strong\u003e of the SV503 70 is perfectly matched for large targets. When paired with a typical APS-C camera, it allows you to capture the entire Andromeda Galaxy (M31) and its satellite galaxies M32 and M110 in a single, well-composed frame.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat accessories can I connect to the SV503 70's 2.5\" focuser?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe focuser terminates in a 2\" receptacle and also has a female \u003cstrong\u003eM54x0.75 thread\u003c\/strong\u003e for direct connections. With \u003cstrong\u003e127.5mm of back focus\u003c\/strong\u003e, it provides ample space to install a complete imaging train, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFilter wheels or filter drawers\u003c\/li\u003e\n\u003cli\u003eOff-axis guiders (OAGs)\u003c\/li\u003e\n\u003cli\u003eField rotators\u003c\/li\u003e\n\u003cli\u003eYour astronomy camera\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV503 70 a good choice for imaging nebulae from my backyard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Its \u003cstrong\u003ef\/6.78 focal ratio\u003c\/strong\u003e is efficient for collecting data on faint nebulae. From a light-polluted location, pairing the SV503 70 with a duo-narrowband filter is highly effective for isolating the hydrogen-alpha and oxygen-III signals of emission nebulae like the Lagoon Nebula (M8) or the Eagle Nebula (M16).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat kind of mount do I need for the SVBONY SV503 70?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe telescope tube and its included accessories weigh only \u003cstrong\u003e5.9 lbs (2685g)\u003c\/strong\u003e. This lightweight design makes it an excellent match for portable German equatorial mounts with a payload capacity of 10-15 lbs or more, such as a Sky-Watcher Star Adventurer GTi or similar tracker.\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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e70mm \/ 2.8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e474mm \/ 18.7\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/6.78\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Type\u003c\/td\u003e\n\u003ctd\u003e2-Element ED lens with FPL51 and lanthanum special glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorrector\u003c\/td\u003e\n\u003ctd\u003e2-element corrector installed in the tube\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCorrected Image Circle\u003c\/td\u003e\n\u003ctd\u003e32mm \/ 1.3\" (100% correction)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocuser\u003c\/td\u003e\n\u003ctd\u003e2.5\" RAP focuser with 2\" reduction adapter and M54x0.75 female thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWorking Distance\u003c\/td\u003e\n\u003ctd\u003e127.5mm \/ 5\" (from 2\" receptacle)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Length (min)\u003c\/td\u003e\n\u003ctd\u003e365mm \/ 14.4\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Diameter\u003c\/td\u003e\n\u003ctd\u003e82mm \/ 3.2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDew Shield Diameter\u003c\/td\u003e\n\u003ctd\u003e93mm \/ 3.7\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Weight (incl. accessories)\u003c\/td\u003e\n\u003ctd\u003e2685g \/ 5.9lb\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\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV503_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSV503 70mm f\/6.78 OTA\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e2\" to 1.25\" Adapter\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eLens Cover\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTelescope Tube 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\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDovetail Plate\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e1.25\" Dust Cover\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV503_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861225042205,"sku":"SV-F9359E","price":503.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-Flatfield-Refractor-Telescope-for-Astrophotography-SV503-70-1_8e5ac16e-a3b5-434c-af5c-80477adf5d6c.jpg?v=1788884053"},{"product_id":"svbony-sv550-80mm-f-6-apo-triplet-refractor-telescope-ota","title":"SVBONY SV550 80mm f\/6 APO Triplet Refractor Telescope OTA","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e80mm Aperture Apochromatic Triplet Refractor\u003c\/li\u003e\n\u003cli\u003e480mm Focal Length\u003c\/li\u003e\n\u003cli\u003eFast f\/6 Focal Ratio\u003c\/li\u003e\n\u003cli\u003eFPL51 ED Glass Element for Color Correction\u003c\/li\u003e\n\u003cli\u003eResolving Power of 1.45 arc seconds\u003c\/li\u003e\n\u003cli\u003eLightweight 2900g Optical Tube\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\u003eAPO Refractor Telescope Triplet SVBONY SV550 80\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV550 80mm APO Triplet refractor combines a fast f\/6 focal ratio with a 480mm focal length for wide-field astrophotography. Its three-element apochromatic lens design, featuring FPL51 ED glass, achieves a theoretical resolution of 1.45 arc seconds by virtually eliminating chromatic aberration. The optical tube assembly itself weighs only 2900g, making it an ideal imaging instrument for portable equatorial mounts.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eApochromatic Triplet Optics: 80mm of FPL51 Color Correction\u003c\/h3\u003e\n\u003cp\u003eAt the heart of the SV550 is an 80mm air-spaced triplet objective. One of the elements is genuine FPL51 extra-low dispersion (ED) glass, which provides excellent color correction by bringing red, green, and blue wavelengths to a single, sharp focus. This apochromatic design prevents the distracting purple fringing around bright stars common in simpler scopes, delivering high-contrast images with a limiting stellar magnitude of 11.6.\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\u003eWide-Field Imaging at f\/6: A 480mm Focal Length Sweet Spot\u003c\/h3\u003e\n\u003cp\u003eThe SV550's 480mm focal length and f\/6 ratio are perfectly suited for capturing large deep-sky objects. This field of view allows you to frame expansive targets like the Andromeda Galaxy (M31) or the entire Veil Nebula complex in a single shot with most modern astronomy cameras. The fast optical system gathers significant light quickly, reducing the required exposure time for faint nebulae.\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\u003ePortable 2900g Build: Sized for Grab-and-Go Mounts\u003c\/h3\u003e\n\u003cp\u003eWith a barrel weight of just 2900g (2.9 kg) and a compact length of 377.8mm, the SV550 is engineered for portability. This low weight places minimal strain on mid-range equatorial mounts, ensuring stable tracking for long-exposure astrophotography without requiring a massive, observatory-class setup. The 103mm outer tube diameter and 150-175mm dovetail plate provide a standard, rigid connection to your 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\u003eSV550 80mm Triplet vs. Standard ED Doublets: The Third Element Advantage\u003c\/h3\u003e\n\u003cp\u003eWhile a standard ED doublet refractor offers good color correction, the SV550's triplet design provides a superior level of performance, particularly for imaging. The third lens element allows for more precise control over the entire visual spectrum, resulting in tighter stars and higher contrast.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChromatic Aberration:\u003c\/strong\u003e The triplet design of the SV550 provides a higher degree of color correction than two-element lenses, which is critical for preventing star bloat and color halos in astrophotography.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eImage Contrast:\u003c\/strong\u003e By focusing all colors to a single point, the SV550 produces a darker sky background and reveals more subtle details in planetary features and faint nebulosity.\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 kind of mount is required for the SVBONY SV550 80mm telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith a barrel weight of 2900g, the SV550 80mm is well-suited for mid-sized equatorial mounts. For astrophotography, a mount with a payload capacity of at least 20 lbs (9 kg), such as a Sky-Watcher HEQ5 or iOptron CEM26, is recommended to ensure stable, precise tracking.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the FPL51 glass in the SV550 improve my images?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eFPL51\u003c\/strong\u003e is a high-grade, extra-low dispersion (ED) glass that minimizes chromatic aberration. This means it corrects for \"false color,\" preventing purple halos from appearing around bright stars. The result is sharper stars, higher contrast, and more accurate color rendition in your astrophotos.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV550 80mm f\/6 good for viewing planets like Jupiter and Saturn?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the SV550's apochromatic optics provide excellent, high-contrast views of the planets. While its 480mm focal length is optimized for wide-field imaging, you can use a high-quality Barlow lens to increase the magnification for detailed views of Jupiter's cloud bands, Saturn's rings, and features on Mars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat deep-sky objects can I image with the SV550's 480mm focal length?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 480mm focal length is ideal for large celestial targets. With the SVBONY SV550, you can easily capture:\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe entire Andromeda Galaxy (M31)\u003c\/li\u003e\n\u003cli\u003eThe North America Nebula (NGC 7000)\u003c\/li\u003e\n\u003cli\u003eThe Pleiades star cluster (M45)\u003c\/li\u003e\n\u003cli\u003eThe Heart and Soul Nebulae (IC 1805 and IC 1848)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of an APO triplet like the SV550 over a standard doublet refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary benefit is superior color correction. A triplet lens, especially one with FPL51 glass like the SV550, brings the red, green, and blue wavelengths of light to a much tighter focus than a two-lens doublet. This eliminates color fringing and produces sharper, higher-contrast images, which is especially critical for astrophotography.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the 1.45 arc second resolution of the SV550 mean for my images?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eResolution, or Dawes' Limit, is the theoretical ability of a telescope to distinguish between two closely spaced objects, like the individual stars in a tight double star system. A resolution of \u003cstrong\u003e1.45 arc seconds\u003c\/strong\u003e means the 80mm aperture of the SV550 can resolve very fine details, limited only by atmospheric seeing conditions.\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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Type\u003c\/td\u003e\n\u003ctd\u003eRefractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Design\u003c\/td\u003e\n\u003ctd\u003eApochromatic Triplet\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e480mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eED Glass\u003c\/td\u003e\n\u003ctd\u003eFPL51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1.45 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLimiting Stellar Magnitude\u003c\/td\u003e\n\u003ctd\u003e11.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eSMC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Tube Weight\u003c\/td\u003e\n\u003ctd\u003e2900g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Tube Length\u003c\/td\u003e\n\u003ctd\u003e377.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Outer Diameter\u003c\/td\u003e\n\u003ctd\u003e103mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDovetail Plate Length\u003c\/td\u003e\n\u003ctd\u003e150-175mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e3750g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGross Weight\u003c\/td\u003e\n\u003ctd\u003e3850g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Size\u003c\/td\u003e\n\u003ctd\u003e440 x 220 x 210mm\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\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV550_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV550_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861225140509,"sku":"SV-F9381A","price":783.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-APO-refractor-Telescope-Triplet-SV550-80-1-F9381C_48487187-548c-46bd-a70c-e7332fdaa648.jpg?v=1788884093"},{"product_id":"svbony-sv550-122mm-apo-refractor-telescope-ota","title":"SVBONY SV550 122mm APO Refractor Telescope OTA","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e80mm Aperture\u003c\/li\u003e\n\u003cli\u003ef\/6 Focal Ratio\u003c\/li\u003e\n\u003cli\u003e480mm Focal Length\u003c\/li\u003e\n\u003cli\u003eApochromatic Triplet Lens with FPL-51 ED Glass\u003c\/li\u003e\n\u003cli\u003eSuper Multi-Coated (SMC) Optics\u003c\/li\u003e\n\u003cli\u003e2900g Barrel Weight\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\u003eSVBONY SV550 80mm f\/6 APO Triplet Refractor Telescope\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV550 80mm f\/6 APO Triplet Refractor delivers true apochromatic imaging with its 80mm aperture and 480mm focal length. Its air-spaced triplet lens, featuring one FPL-51 ED glass element, achieves a theoretical resolution of 1.45 arc seconds and reaches a limiting stellar magnitude of 11.6, producing high-contrast images free of false color.\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\u003e80mm f\/6 Triplet APO: High-Contrast Views with FPL-51 Glass\u003c\/h3\u003e\n\u003cp\u003eAt the core of the SV550 is an 80mm air-spaced apochromatic triplet objective. This design utilizes an FPL-51 Extra-low Dispersion (ED) glass element to precisely focus red, green, and blue wavelengths to the same point, virtually eliminating the chromatic aberration or \"purple fringing\" seen in simpler achromats and some ED doublets. The Super Multi-Coated (SMC) optics ensure maximum light transmission for bright, high-contrast views of both planetary details and faint deep-sky objects.\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 480mm Focal Length for Wide-Field Astrophotography\u003c\/h3\u003e\n\u003cp\u003eWith a native focal length of 480mm and a fast f\/6 focal ratio, the SV550 80 is optimized for wide-field astrophotography. This combination is ideal for capturing large celestial targets like the Andromeda Galaxy (M31), the Pleiades (M45), or sweeping regions of the Milky Way. For imagers seeking pinpoint stars across the entire frame, the addition of a dedicated field flattener is necessary to correct for natural field curvature.\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\u003e2900g OTA: A Portable Platform for Modern Mounts\u003c\/h3\u003e\n\u003cp\u003eThe optical tube assembly weighs in at a manageable 2900g (barrel weight), making the SV550 80 an excellent choice for portable imaging setups. This low weight reduces the demands on your equatorial mount, allowing for stable tracking on a wide variety of platforms, from compact star trackers to mid-size GoTo mounts. The telescope includes a 150-175mm dovetail plate for secure and straightforward mounting.\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\u003eSV550 80 APO vs. Standard 80mm ED Doublets: The Triplet Advantage\u003c\/h3\u003e\n\u003cp\u003eWhile an 80mm ED doublet refractor offers good color correction, the SV550's triplet design provides a superior level of performance, particularly for astrophotography.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eED Doublet Advantage:\u003c\/strong\u003e Doublets are typically lighter, cool down faster, and are more affordable, making them excellent visual instruments and entry points into imaging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSV550 Triplet Advantage:\u003c\/strong\u003e The third lens element in the SV550 allows for a higher degree of color correction, significantly reducing residual spherical and chromatic aberration. This results in tighter star points and a complete absence of color fringing on bright objects like Sirius or Vega, a critical factor for producing clean, high-fidelity astrophotos.\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 kind of mount do I need for the SVBONY SV550 80 telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith a barrel weight of \u003cstrong\u003e2900g\u003c\/strong\u003e, the SV550 80 is relatively lightweight. For visual use, a solid alt-azimuth mount is sufficient. For long-exposure astrophotography, a German equatorial mount with a payload capacity of at least 15-20 lbs (like a Celestron AVX or Sky-Watcher HEQ5) is recommended to handle the telescope plus a camera, guidescope, and other accessories.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the SV550 80's FPL-51 glass perform on bright stars like Vega?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe apochromatic triplet design incorporating \u003cstrong\u003eFPL-51 ED glass\u003c\/strong\u003e is specifically engineered to minimize chromatic aberration. When focused on a bright, blue-white star like Vega, you will see a clean, sharp point of light without the distracting purple halo common in achromatic or less-corrected doublet refractors. This high level of color fidelity is a key benefit for both visual observers and astrophotographers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need a field flattener for imaging with the SVBONY SV550 80?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. Like all refractors, the SV550 80 has natural field curvature, which can cause stars at the edge of an image to appear slightly elongated. To achieve pinpoint stars across the entire field of view, especially with cameras using APS-C or larger sensors, a dedicated field flattener is essential. The SVBONY SV209 0.8x reducer\/flattener is designed for this purpose.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV550 80 suitable for planetary viewing?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile its \u003cstrong\u003e480mm focal length\u003c\/strong\u003e is optimized for wide-field deep-sky objects, the SV550 80's high-quality apochromatic optics make it a capable planetary instrument. By using a high-quality Barlow lens to increase the magnification, you can achieve sharp, high-contrast views of Jupiter's cloud bands, Saturn's rings, and details on Mars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SVBONY SV550 80 for visual astronomy on targets like the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The \u003cstrong\u003ef\/6 focal ratio\u003c\/strong\u003e and 80mm aperture provide a bright, wide field of view that is perfect for large deep-sky objects. With a low-power, wide-field eyepiece, the Orion Nebula (M42), the Andromeda Galaxy (M31), and large open clusters like the Pleiades (M45) will be beautifully framed against a dark sky background.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the 1.45 arc second resolution of the SV550 80 mean in practice?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e1.45 arc second\u003c\/strong\u003e resolution (Dawes' Limit) represents the telescope's theoretical ability to distinguish between two closely spaced stars under perfect atmospheric conditions. This resolving power allows you to split tight double stars like Albireo (Beta Cygni) with distinct color separation and to discern fine details in lunar craters and planetary features.\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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eSVBONY\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Type\u003c\/td\u003e\n\u003ctd\u003eApochromatic Refractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e480mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Design\u003c\/td\u003e\n\u003ctd\u003eAir-Spaced Triplet Apochromatic\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eED Glass\u003c\/td\u003e\n\u003ctd\u003eFPL-51\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eSMC (Super Multi-Coated)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResolution\u003c\/td\u003e\n\u003ctd\u003e1.45 arc seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLimiting Stellar Magnitude\u003c\/td\u003e\n\u003ctd\u003e11.6\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Outer Diameter\u003c\/td\u003e\n\u003ctd\u003e103mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTelescope Length\u003c\/td\u003e\n\u003ctd\u003e377.8mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Weight\u003c\/td\u003e\n\u003ctd\u003e2900g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e3750g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGross Weight\u003c\/td\u003e\n\u003ctd\u003e3850g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDovetail Plate Length\u003c\/td\u003e\n\u003ctd\u003e150-175mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage Size\u003c\/td\u003e\n\u003ctd\u003e440 x 220 x 210mm\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\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV550_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV550_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861225238813,"sku":"SV-F9381C","price":1903.0,"currency_code":"CAD","in_stock":true}]},{"product_id":"svbony-sv501p-60mm-portable-refractor-telescope","title":"SVBONY SV501P 60mm Portable Refractor Telescope","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e60mm Aperture Refractor\u003c\/li\u003e\n\u003cli\u003e400mm Focal Length (f\/6.4)\u003c\/li\u003e\n\u003cli\u003e45° Correct-Image Prism for Terrestrial and Astro Viewing\u003c\/li\u003e\n\u003cli\u003eIncludes K20mm Eyepiece (20x Magnification)\u003c\/li\u003e\n\u003cli\u003e5x24 Optical Finderscope\u003c\/li\u003e\n\u003cli\u003eLightweight Aluminum Tripod and Backpack Included\u003c\/li\u003e\n\u003cli\u003eTotal Kit Weight: 2170g\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\u003eSVBONY SV501P 60mm f\/6.4 Refractor Telescope\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV501P Telescope combines a 60mm multi-coated objective lens and a 400mm focal length into a portable f\/6.4 refractor package designed for beginners. This complete kit includes a K20mm eyepiece for 20x magnification, a 5x24 optical finder for easy aiming, and a 45° correct-image prism for comfortable day and night viewing, all weighing just 2170g.\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\u003e60mm f\/6.4 Optics: Bright Views of the Moon and Planets\u003c\/h3\u003e\n\u003cp\u003eThe SV501P's 60mm aperture provides bright, clear views of the Moon's craters, the rings of Saturn, and the moons of Jupiter. Its 400mm focal length results in a fast f\/6.4 focal ratio, offering a wide field of view that makes finding and tracking celestial objects easier for new observers. While not designed for faint deep-sky objects, its multi-coated objective lens maximizes light transmission for sharp, high-contrast images of the brightest targets in the night sky.\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 Complete Kit for Day and Night: 5x24 Finder and 45° Diagonal\u003c\/h3\u003e\n\u003cp\u003eThis telescope arrives with all the essential accessories for immediate observation. The included 45° correct-image prism diagonal is a key feature, providing an upright, non-reversed image that makes the SV501P equally useful for terrestrial viewing like birdwatching or landscape observation. Locating targets is simplified with the 5x24 optical finderscope, and the K20mm eyepiece delivers a versatile 20x magnification to get you started.\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\u003eGrab-and-Go Astronomy: 2170g Kit with Included Backpack\u003c\/h3\u003e\n\u003cp\u003eDesigned for portability, the entire SV501P setup weighs only 2170g and packs neatly into the included backpack. The lightweight aluminum alloy tripod provides a stable-enough platform for casual viewing and sets up in minutes. This makes it an ideal first telescope for taking to a local park, on a camping trip, or simply setting up quickly in the backyard for a spontaneous stargazing session.\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 can I realistically see with the SVBONY SV501P 60mm telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV501P is excellent for bright celestial objects. You can expect to see detailed craters on the Moon, the four Galilean moons of Jupiter, the rings of Saturn, and the phases of Venus. For daytime use, it's great for distant landscapes and wildlife.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will Jupiter's moons appear with the SV501P's included K20mm eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith the included K20mm eyepiece providing \u003cstrong\u003e20x magnification\u003c\/strong\u003e, Jupiter's four largest moons will appear as distinct, star-like points of light arranged in a line on either side of the planet. You can watch their positions change from night to night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV501P good for daytime bird watching?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it is well-suited for bird watching and other terrestrial viewing. The included \u003cstrong\u003e45° correct-image prism diagonal\u003c\/strong\u003e ensures that the image you see is both upright and correctly oriented left-to-right, which is essential for following moving objects on land.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use different eyepieces with the SV501P telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The telescope uses a standard \u003cstrong\u003e1.25\" focuser and diagonal\u003c\/strong\u003e, so you can expand your collection with additional 1.25\" eyepieces to achieve higher or lower magnifications. A 10mm eyepiece, for example, would provide 40x magnification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow difficult is the SVBONY SV501P to set up for a complete beginner?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SV501P is designed for simplicity and quick assembly. The main components attach without tools, and the lightweight aluminum tripod is easy to handle. Most beginners can have it assembled and ready for viewing in under 10 minutes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan the SV501P resolve craters on the Moon?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, the 60mm aperture is more than capable of revealing significant detail on the lunar surface. You will be able to easily identify major craters like Copernicus and Tycho, especially when viewing along the terminator (the line between the lit and dark portions of the Moon), where shadows create high contrast.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eRefractor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e60 mm \/ 2.36\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e400 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/6.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective lens\u003c\/td\u003e\n\u003ctd\u003e2 Elements \/ 2 Groups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Coatings\u003c\/td\u003e\n\u003ctd\u003eMulti-Coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinder Scope\u003c\/td\u003e\n\u003ctd\u003e5x24 Optical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece Included\u003c\/td\u003e\n\u003ctd\u003eK20 mm 1.25\" (20x magnification)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDiagonal\u003c\/td\u003e\n\u003ctd\u003e45° Correct-Image Prism 1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod\u003c\/td\u003e\n\u003ctd\u003e20mm Diameter Aluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBackpack Included\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Weight\u003c\/td\u003e\n\u003ctd\u003e2170g\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\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV501P_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSV501P 60mm Telescope OTA\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAluminum Alloy Tripod\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e5x24 Finderscope\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eK20mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e45° Correct-Image Diagonal (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003ePortable Backpack\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\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861225402653,"sku":"SV-F9348E","price":79.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV501P-Telescope-60mm-Ideal-Refractor-for-Beginners-1_dcfc3a99-ba49-4266-bfee-2bb8874a0b39.jpg?v=1788659488"},{"product_id":"svbony-sv502-astronomy-telescope-for-kids","title":"SVBONY SV502 Astronomy Telescope for Kids","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e50mm Refractor Telescope\u003c\/li\u003e\n\u003cli\u003e360mm Focal Length (f\/7.2)\u003c\/li\u003e\n\u003cli\u003eIncludes K20mm Eyepiece\u003c\/li\u003e\n\u003cli\u003e5x20 Optical Viewfinder\u003c\/li\u003e\n\u003cli\u003e45-Degree Correct-Image Prism for Upright Views\u003c\/li\u003e\n\u003cli\u003eAdjustable Table-top Aluminum Tripod\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\u003eSVBONY SV502 Astronomy Telescope for Kids\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV502 Astronomy Telescope is designed to be a child's first gateway to the cosmos, combining a 50mm aperture with a 360mm focal length for bright, wide-field views of the Moon. Its f\/7.2 optical system, paired with the included K20mm eyepiece, is perfectly suited for exploring lunar craters and bright star clusters. The package includes a 5x20 optical viewfinder to help locate targets, and its 45-degree erect image prism ensures views are upright and correct, making it intuitive for young observers.\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\u003e50mm Refractor Optics: A First Look at the Moon's Craters\u003c\/h3\u003e\n\u003cp\u003eThe SV502's 50mm refractor lens is an ideal size for introducing a young astronomer to our closest celestial neighbor. This aperture gathers enough light to resolve distinct craters, mountains, and seas on the Moon's surface, transforming it from a flat disc into a detailed, three-dimensional world. The 360mm focal length and K20mm eyepiece work together to provide a low-power, wide field of view, making it easy for a child to find the Moon and keep it in view.\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\u003e45-Degree Correct-Image Prism: Intuitive Day and Night Viewing\u003c\/h3\u003e\n\u003cp\u003eUnlike standard astronomical telescopes that present an inverted or mirror-reversed image, the SVBONY SV502 includes a 45-degree erect image prism. This crucial component ensures that what you see through the eyepiece matches the view with your naked eyes—up is up, and left is left. This makes navigating the sky far more intuitive for a beginner and allows the telescope to double as a daytime spotting scope for observing birds, boats, or distant landscapes from a porch or window.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTool-Free Setup:\u003c\/strong\u003e The telescope and its adjustable table-top aluminum tripod can be assembled in minutes without any tools, allowing for spontaneous observing sessions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5x20 Finderscope:\u003c\/strong\u003e The included optical viewfinder provides 5x magnification to help locate objects in the sky before viewing them through the main telescope.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard 1.25\" Focuser:\u003c\/strong\u003e The 1.25\" prism diagonal accepts standard astronomy eyepieces, offering a path for future exploration with different magnifications.\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 can a child actually see with the SVBONY SV502 telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV502 is designed primarily for the Moon. A child will be able to see hundreds of craters, lunar maria (the dark \"seas\"), and mountain ranges. It can also show the four brightest moons of Jupiter as tiny star-like points, the phases of Venus, and bright open star clusters like the Pleiades (M45).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV502 a good telescope for looking at planets like Saturn?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWhile you can see Saturn as a small, non-circular point of light, the SV502's 50mm aperture and low-power eyepiece are not sufficient to clearly resolve its rings. The telescope is optimized for wide, bright views of the Moon rather than high-magnification planetary detail.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan we use the SVBONY SV502 for daytime bird watching?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, absolutely. The included \u003cstrong\u003e45-degree erect image prism\u003c\/strong\u003e is the key feature for daytime use. It provides a correctly oriented, upright image, so the SV502 functions just like a small spotting scope. The table-top tripod is perfect for setting up on a deck railing or picnic table.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 5x20 viewfinder on the SVBONY SV502 work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe viewfinder is a small, low-power telescope that attaches to the main tube. It has a much wider field of view, making it easier to find and center an object like the Moon. Once you center the Moon in the viewfinder's crosshairs, it will be visible in the main eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV502 telescope difficult for a child to set up and use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eNo, it's designed for simplicity. The setup is tool-free and takes only a few minutes. The table-top tripod is lightweight and easy to manage. The main challenge for a child will be learning to use the viewfinder, which is a great first skill in astronomy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use different eyepieces with the SVBONY SV502 to get more magnification?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The telescope uses a standard \u003cstrong\u003e1.25\" zenith mirror\u003c\/strong\u003e (prism), which means it is compatible with the vast majority of standard 1.25\" astronomy eyepieces. Using a shorter focal length eyepiece (like a 10mm) would increase the magnification for closer views, though the 50mm aperture will limit the practical upper magnification limit.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical System\u003c\/td\u003e\n\u003ctd\u003eRefractive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAperture\u003c\/td\u003e\n\u003ctd\u003e50mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e360mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003eF7.2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eViewfinder\u003c\/td\u003e\n\u003ctd\u003e5x20 Optical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEyepiece\u003c\/td\u003e\n\u003ctd\u003eK20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eZenith Mirror\u003c\/td\u003e\n\u003ctd\u003e45-Degree Erect Image Prism 1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod\u003c\/td\u003e\n\u003ctd\u003eAdjustable Table-top Aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eOrange\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\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV502_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eSV502 Telescope OTA\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eK20mm Eyepiece (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e45-Degree Erect Image Prism (1.25\")\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e5x20 Optical Viewfinder\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eAdjustable Table-top Tripod\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eLens Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Plug\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY_SV502_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY 1-Year Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861225697565,"sku":"SV-F9350A","price":63.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV502-Astronomy-Telescope-for-Kids-Gift-for-Exploring-Moon-Science-Education-1_f116f8b7-d599-4338-9d90-e7cab175b847.jpg?v=1788659496"},{"product_id":"svbony-sv520-astronomy-telescope-complete-kit-for-beginners","title":"SVBONY SV520 Astronomy Telescope Complete Kit for Beginners","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e90mm Objective Aperture\u003c\/li\u003e\n\u003cli\u003ef\/8.9 Focal Ratio\u003c\/li\u003e\n\u003cli\u003eAlt-Azimuth Mount with Worm Gear Slow-Motion Controls\u003c\/li\u003e\n\u003cli\u003eIncludes 3X Barlow Lens\u003c\/li\u003e\n\u003cli\u003e5x24 Optical Finder Scope\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\u003eSVBONY SV520 Astronomy Telescope Complete Kit for Beginners Stargazing\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV520 Astronomy Telescope combines a 90mm objective lens and an f\/8.9 focal ratio to deliver clear, high-contrast views of the Moon and planets. Its achromatic doublet lens, made from K9 and ZF4 glass, is capable of resolving details down to the 1.33\" Dawes Limit, making it an ideal starting point for celestial observation. The entire system is supported by a stainless steel tripod and an alt-azimuth mount with worm gear fine adjustment, providing the stability and control needed to track objects smoothly across the night sky.\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\u003e90mm f\/8.9 Optics: Capturing Lunar and Planetary Detail\u003c\/h3\u003e\n\u003cp\u003eThe SV520's optical system is built around a 90mm air-spaced doublet objective, a significant step up in light-gathering power from typical entry-level telescopes. This aperture is large enough to reveal details like the cloud bands of Jupiter, the rings of Saturn, and countless craters on the Moon. The f\/8.9 focal ratio provides sharp images with well-controlled chromatic aberration, which is further enhanced by Fully Multi-Coated (FMC) optics and edge-blackened lenses that maximize contrast by reducing internal reflections.\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\u003eAlt-Azimuth Mount: Stable Tracking with Dual-Axis Slow Motion\u003c\/h3\u003e\n\u003cp\u003eA steady mount is critical for high-magnification viewing, and the SV520 includes a robust alt-azimuth mount with worm gear drives on both axes. This design allows you to make precise, minute adjustments using the two fine-adjustment levers, keeping your target centered in the eyepiece as it moves across the sky. Supported by a stainless steel tripod and a 20cm dovetail bar, the entire assembly provides a stable platform that minimizes vibrations for clearer viewing.\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\u003eComplete 1.25\" Starter Kit: 3X Barlow and Smartphone Navigation\u003c\/h3\u003e\n\u003cp\u003eThis kit includes essential accessories to get you started right away. The 5x24 optical finder scope helps you locate celestial objects before switching to the main eyepiece, while the included 3X Barlow lens triples the magnification of any 1.25-inch eyepiece you add to the system. A key feature for beginners is the multi-function finder scope mount, which integrates a smartphone holder, allowing you to use popular stargazing apps for easy, app-assisted navigation of the night sky.\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 can I realistically see with the SVBONY SV520 telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eWith its 90mm aperture, the SVBONY SV520 is excellent for lunar and planetary observing. You can expect to see detailed craters and mountains on the Moon, the primary cloud belts and four Galilean moons of Jupiter, the rings of Saturn, and the phases of Venus. Brighter deep-sky objects like the Orion Nebula (M42) and the Andromeda Galaxy (M31) will also be visible from a dark sky location.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the SVBONY SV520's alt-azimuth mount easy for a beginner to use?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's designed for simplicity. Unlike complex equatorial mounts, an alt-azimuth mount moves in simple up\/down and left\/right motions. The SV520 enhances this with \u003cstrong\u003eworm gear slow-motion controls\u003c\/strong\u003e, allowing for very fine adjustments to track objects smoothly, which is a significant feature for keeping planets in view at high power.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will Saturn's rings look through the SVBONY SV520?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe SVBONY SV520's 90mm objective can clearly resolve Saturn's rings as distinct from the planet itself. On nights of steady seeing, you should be able to see the Cassini Division, the main gap within the rings. Using the included 3X Barlow with a suitable eyepiece will provide the magnification needed to appreciate this view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the SVBONY SV520 to see the Orion Nebula (M42)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. The Orion Nebula is a bright and rewarding target for the SVBONY SV520. The telescope's 90mm aperture will gather enough light to reveal the nebula's glowing gas clouds and the Trapezium star cluster at its heart. For the best view, use a low-power eyepiece to frame the entire nebula.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does the 3X Barlow lens in the SV520 kit do?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe included \u003cstrong\u003e3X Barlow lens\u003c\/strong\u003e is an optical amplifier. You place it in the focuser before your eyepiece to triple the magnification. For example, if you have a 25mm eyepiece, adding the Barlow will give you the view of a much shorter ~8.3mm eyepiece, which is useful for getting closer looks at planets and lunar details.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the smartphone mount help me find objects with the SV520?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe smartphone mount attaches to the finder scope bracket. By running a planetarium app on your phone (like Stellarium or SkySafari), you can get a real-time map of the sky. This allows you to aim your telescope by simply matching the view on your screen to the sky, making it much easier for beginners to locate planets, stars, and constellations.\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\u003eObjective Aperture\u003c\/td\u003e\n\u003ctd\u003e90mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Ratio\u003c\/td\u003e\n\u003ctd\u003ef\/8.9\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDawes Limit\u003c\/td\u003e\n\u003ctd\u003e1.33\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Material\u003c\/td\u003e\n\u003ctd\u003eK9 + ZF4 Glass\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eObjective Coating\u003c\/td\u003e\n\u003ctd\u003eFMC Anti-Reflection Green Film\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLight-Blocking Glass\u003c\/td\u003e\n\u003ctd\u003eEdge-Coated with Ink\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSurface Accuracy\u003c\/td\u003e\n\u003ctd\u003eGrade 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLens Tube Material\u003c\/td\u003e\n\u003ctd\u003eAluminum Alloy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDovetail Mount\u003c\/td\u003e\n\u003ctd\u003e20cm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInterface Size\u003c\/td\u003e\n\u003ctd\u003e1.25-inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTripod Material\u003c\/td\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMount\u003c\/td\u003e\n\u003ctd\u003eAlt-Azimuth Mount with Worm Gear \u0026amp; 2 Fine Adjustment Levers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinder Scope\u003c\/td\u003e\n\u003ctd\u003e5x24 Optical Finder Scope\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinder Scope Mount\u003c\/td\u003e\n\u003ctd\u003eMulti-Function Mount with Smartphone Holder\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarlow Lens\u003c\/td\u003e\n\u003ctd\u003e3X (2-Element Cemented Structure)\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\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/svbony-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eSVBONY Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":52861225861405,"sku":"SV-W9302A-W9195A-W9195B","price":280.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/SVBONY-SV520-Astronomy-Telescope-Complete-Kit-for-Beginners-Stargazing-1_1a3e791a-f89d-47e8-96c2-0fe2ac1c0e01.jpg?v=1788884064"}],"url":"https:\/\/davidastro.com\/fr\/collections\/svbony-telescopes.oembed","provider":"David Astro","version":"1.0","type":"link"}