{"product_id":"svbony-sv580-80mm-f4-5-petzval-apo-astrograph","title":"SVBONY SV580 80mm Petzval APO – £50 Refundable UK Reservation","description":"\u003cdiv class=\"dcs-sv580-reservation\" style=\"margin:0 0 28px;border:1px solid #243548;border-radius:16px;overflow:hidden;background:#07111e;color:#ffffff;\"\u003e\n\u003cfigure style=\"margin:0;\"\u003e\n\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/svbony-sv580-dark-clear-skies-presale-banner.png?v=1791369912\" alt=\"SVBONY SV580 80mm f\/4.5 Petzval APO: join the £50 refundable UK presale queue; full price to be confirmed\" style=\"display:block;width:100%;max-width:100%;height:auto;\"\u003e\n\u003c\/figure\u003e\n\u003cdiv style=\"padding:24px;background:linear-gradient(135deg,#111b2a,#07111e);\"\u003e\n\u003cp style=\"margin:0 0 10px;color:#ffadad;font-size:13px;font-weight:700;letter-spacing:1.5px;\"\u003eUK PRESALE · £50 REFUNDABLE RESERVATION\u003c\/p\u003e\n\u003ch2 style=\"margin:0 0 14px;color:#ffffff;font-size:clamp(25px,4vw,34px);line-height:1.2;\"\u003eJoin the SVBONY SV580 £50 presale queue\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 20px;color:#e5edf5;font-size:16px;line-height:1.65;\"\u003eReserve your place for SVBONY’s 80mm f\/4.5 Petzval APO astrograph. We will confirm the full UK telescope price and availability before you decide whether to buy.\u003c\/p\u003e\n\u003cdiv style=\"display:flex;flex-wrap:wrap;gap:12px;margin:0 0 18px;\"\u003e\n\u003cdiv style=\"flex:1 1 165px;min-width:0;padding:16px;background:#142132;border:1px solid #394455;border-radius:10px;\"\u003e\n\u003ch3 style=\"margin:0 0 8px;color:#ffffff;font-size:21px;line-height:1.2;\"\u003e£50 today\u003c\/h3\u003e\n\u003cp style=\"margin:0;color:#d6e3ef;font-size:14px;line-height:1.6;\"\u003eThe full £50 comes off the telescope price if you proceed.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 165px;min-width:0;padding:16px;background:#142132;border:1px solid #394455;border-radius:10px;\"\u003e\n\u003ch3 style=\"margin:0 0 8px;color:#ffffff;font-size:21px;line-height:1.2;\"\u003eFully refundable\u003c\/h3\u003e\n\u003cp style=\"margin:0;color:#d6e3ef;font-size:14px;line-height:1.6;\"\u003eRequest a full refund before accepting the final purchase offer.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"flex:1 1 165px;min-width:0;padding:16px;background:#142132;border:1px solid #394455;border-radius:10px;\"\u003e\n\u003ch3 style=\"margin:0 0 8px;color:#ffffff;font-size:21px;line-height:1.2;\"\u003eFull price TBC\u003c\/h3\u003e\n\u003cp style=\"margin:0;color:#d6e3ef;font-size:14px;line-height:1.6;\"\u003eYour reservation records your place in our UK presale queue.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"margin:0 0 18px;color:#e5edf5;font-size:15px;line-height:1.65;\"\u003e\u003cstrong\u003eFull telescope price and UK delivery timing: to be confirmed.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0 0 10px;\"\u003e\u003ca href=\"#MainContent\" style=\"display:inline-block;max-width:100%;box-sizing:border-box;padding:13px 20px;border-radius:8px;background:#b5273c;color:#ffffff;text-decoration:none;font-weight:700;line-height:1.4;\"\u003eJoin our £50 presale queue ↑\u003c\/a\u003e\u003c\/p\u003e\n\u003cp style=\"margin:0;color:#c3d2df;font-size:13px;line-height:1.6;\"\u003eUse Add to cart on this page to complete your £50 reservation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"margin:0 0 28px;padding:22px;border:1px solid #dde3e9;border-radius:12px;background:#f6f8fa;\"\u003e\n\u003ch2 style=\"margin:0 0 14px;color:#111b2a;font-size:25px;line-height:1.25;\"\u003eHow your SV580 reservation works\u003c\/h2\u003e\n\u003col style=\"margin:0;padding-left:22px;line-height:1.8;\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eReserve for £50.\u003c\/strong\u003e Place your reservation through this page; your Shopify order number is your reservation reference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReceive the confirmed offer.\u003c\/strong\u003e We contact reservation holders in queue order with the UK price, availability and remaining balance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChoose whether to proceed.\u003c\/strong\u003e If you buy, the full £50 is deducted once from the telescope price. There is no obligation to buy.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eKeep the refund option.\u003c\/strong\u003e Request a full refund before accepting the final purchase offer. If we cannot offer you the opportunity to order, we will refund your £50.\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003cp style=\"margin:14px 0 0;line-height:1.7;\"\u003eAllocation is subject to available UK stock. Your reservation does not guarantee a delivery date or stock allocation.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch2 style=\"margin:28px 0 12px;padding-left:14px;border-left:3px solid #b5273c;font-size:clamp(23px,3vw,29px);line-height:1.25;\"\u003eSVBONY SV580 80mm f\/4.5 Petzval APO astrograph\u003c\/h2\u003e\n\u003cp\u003eThe SVBONY SV580 is a \u003cstrong\u003e360mm wide-field astrograph for deep-sky astrophotography\u003c\/strong\u003e. It combines an 80mm aperture, a six-element Petzval optical system and a built-in field flattener, with a stated 44mm image circle for compatible APS-C and full-frame cameras.\u003c\/p\u003e\n\u003cp\u003eIt suits imagers building a compact refractor setup for expansive nebulae, star fields and large deep-sky compositions. Threaded camera connections, a lockable camera rotator and an included electronic-focuser installation kit support a practical imaging rig.\u003c\/p\u003e\n\u003cfigure style=\"margin: 24px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/svbony-sv580-80mm-f4-5-petzval-apo-astrograph-main.webp?v=1790068918\" alt=\"SVBONY SV580 80mm f\/4.5 Petzval APO astrograph\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: auto;\"\u003e\n\u003cfigcaption style=\"margin-top:8px;color:#516171;font-size:13px;line-height:1.6;\"\u003eThe SV580 optical tube with red tube rings, metal carry handle and V-style dovetail plate.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003ch2 style=\"margin:28px 0 12px;padding-left:14px;border-left:3px solid #b5273c;font-size:clamp(23px,3vw,29px);line-height:1.25;\"\u003eSix-element Petzval APO optics with FCD100 glass\u003c\/h2\u003e\n\u003cp\u003eThe four-group, six-element optical design includes \u003cstrong\u003etwo extra-low-dispersion glass elements, one of them FCD100\u003c\/strong\u003e. These are used to control chromatic aberration and support colour correction in astrophotography.\u003c\/p\u003e\n\u003cp\u003eFully multi-coated lens surfaces reduce reflections and support light transmission. Good final star quality also depends on accurate focus, camera alignment, tracking and the imaging train.\u003c\/p\u003e\n\u003cfigure style=\"margin: 24px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/svbony-sv580-petzval-optical-design.webp?v=1790068930\" alt=\"SVBONY SV580 four-group six-element Petzval optical design\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: auto;\"\u003e\n\u003cfigcaption style=\"margin-top:8px;color:#516171;font-size:13px;line-height:1.6;\"\u003eSVBONY’s four-group, six-element Petzval design with two ED glass elements.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003ch2 style=\"margin:28px 0 12px;padding-left:14px;border-left:3px solid #b5273c;font-size:clamp(23px,3vw,29px);line-height:1.25;\"\u003eFull-frame astrograph with a built-in field flattener\u003c\/h2\u003e\n\u003cp\u003eThe stated \u003cstrong\u003e44mm corrected image circle\u003c\/strong\u003e is designed to cover a 36 × 24mm full-frame sensor, as well as smaller APS-C sensors. Because field correction is built into the telescope, a separate field flattener is not required for its native imaging configuration.\u003c\/p\u003e\n\u003cp\u003eCheck the clear aperture of every adapter, filter and accessory in your imaging train. Sensor coverage does not guarantee that a restrictive downstream connection will avoid vignetting; suitable calibration frames remain part of a normal deep-sky workflow.\u003c\/p\u003e\n\u003cfigure style=\"margin: 24px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/svbony-sv580-full-frame-image-circle.webp?v=1790068940\" alt=\"SVBONY SV580 44mm full-frame image circle and built-in field flattener\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: auto;\"\u003e\n\u003cfigcaption style=\"margin-top:8px;color:#516171;font-size:13px;line-height:1.6;\"\u003e44mm image circle and integrated field correction for large-format astrophotography.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003ch2 style=\"margin:28px 0 12px;padding-left:14px;border-left:3px solid #b5273c;font-size:clamp(23px,3vw,29px);line-height:1.25;\"\u003e80mm aperture, 360mm focal length and fast f\/4.5 imaging\u003c\/h2\u003e\n\u003cp\u003eThe SV580’s \u003cstrong\u003ef\/4.5 focal ratio\u003c\/strong\u003e makes it a fast refractor for wide-field deep-sky imaging. Its 360mm focal length is useful when you want a wider composition rather than a close-up view of a small object. The actual field of view depends on your camera’s sensor dimensions.\u003c\/p\u003e\n\u003cp\u003eExposure length and total integration still depend on the target, sky brightness, filters, camera and tracking performance. The SV580 is an optical tube for an imaging system; a suitable camera and tracking mount are required.\u003c\/p\u003e\n\u003cfigure style=\"margin: 24px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/svbony-sv580-80mm-f4-5-360mm.webp?v=1790068962\" alt=\"SVBONY SV580 80mm aperture 360mm focal length f\/4.5 astrograph\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: auto;\"\u003e\n\u003cfigcaption style=\"margin-top:8px;color:#516171;font-size:13px;line-height:1.6;\"\u003eThe SV580’s native 80mm aperture, 360mm focal length and f\/4.5 focal ratio.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003ch2 style=\"margin:28px 0 12px;padding-left:14px;border-left:3px solid #b5273c;font-size:clamp(23px,3vw,29px);line-height:1.25;\"\u003eHelical focusing and a lockable 360° camera rotator\u003c\/h2\u003e\n\u003cp\u003eA fine-thread \u003cstrong\u003ehelical focuser\u003c\/strong\u003e provides manual focus adjustment with supplier-stated travel of 15–20mm. Once focus is set, the dedicated lock screw secures the mechanism.\u003c\/p\u003e\n\u003cp\u003eThe integrated camera-angle adjuster rotates through 360°. Scale markings help you record and repeat a framing angle, while its lock knob secures the chosen orientation. You can adjust camera composition without rotating the optical tube in its rings.\u003c\/p\u003e\n\u003cfigure style=\"margin: 24px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/svbony-sv580-camera-angle-adjuster.webp?v=1790069000\" alt=\"SVBONY SV580 lockable 360 degree camera angle adjuster\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: auto;\"\u003e\n\u003cfigcaption style=\"margin-top:8px;color:#516171;font-size:13px;line-height:1.6;\"\u003eLockable 360° camera-angle adjustment with engraved scale markings.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003ch2 style=\"margin:28px 0 12px;padding-left:14px;border-left:3px solid #b5273c;font-size:clamp(23px,3vw,29px);line-height:1.25;\"\u003eEAF installation kit for electronic autofocus\u003c\/h2\u003e\n\u003cp\u003eThe supplied installation kit includes mounting brackets, a timing belt and timing pulleys with \u003cstrong\u003e4mm and 5mm internal diameters\u003c\/strong\u003e. SVBONY’s supplier information specifically identifies compatibility with the second-generation ZWO EAF.\u003c\/p\u003e\n\u003cp\u003eThe electronic focuser itself is sold separately. For another model or revision, check its shaft size, mounting arrangement and controller requirements before purchase. Manufacturer photographs showing an SV242 EAF illustrate an optional installation.\u003c\/p\u003e\n\u003cfigure style=\"margin: 24px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/svbony-sv580-eaf-ready.webp?v=1790068951\" alt=\"SVBONY SV580 electronic focuser installation provision\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: auto;\"\u003e\n\u003cfigcaption style=\"margin-top:8px;color:#516171;font-size:13px;line-height:1.6;\"\u003eElectronic-focuser mounting provision; the motorised focuser is not included.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003ch2 style=\"margin:28px 0 12px;padding-left:14px;border-left:3px solid #b5273c;font-size:clamp(23px,3vw,29px);line-height:1.25;\"\u003eM48 and M54 camera connections, 55mm back focus and 2-inch filters\u003c\/h2\u003e\n\u003cp\u003eThe included camera adapter rings provide \u003cstrong\u003eM48 × 0.75 and M54 × 0.75 male threaded connections\u003c\/strong\u003e. These allow suitable DSLR, mirrorless and dedicated CCD\/CMOS astronomy cameras to be connected through the correct camera-specific adapters.\u003c\/p\u003e\n\u003cp\u003eSVBONY states \u003cstrong\u003e55mm back focus\u003c\/strong\u003e. Plan the camera flange or sensor distance, adapters and accessories as a complete imaging train. The supplier places the manual camera rotator outside this stated spacing. Filter wheels and off-axis guiders still need their thickness, clear aperture and mechanical clearance checked.\u003c\/p\u003e\n\u003cp\u003eThe internal \u003cstrong\u003e2-inch filter thread is available with the M48 adapter connection only\u003c\/strong\u003e. This is separate from the M93 × 1 front thread. Do not assume the same internal filter installation is available when using the M54 connection.\u003c\/p\u003e\n\u003cfigure style=\"margin: 24px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/svbony-sv580-m48-m54-interfaces.webp?v=1790068980\" alt=\"SVBONY SV580 M48 and M54 camera interfaces\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: auto;\"\u003e\n\u003cfigcaption style=\"margin-top:8px;color:#516171;font-size:13px;line-height:1.6;\"\u003eSupplied M48 and M54 threaded camera interface options.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003ch2 style=\"margin:28px 0 12px;padding-left:14px;border-left:3px solid #b5273c;font-size:clamp(23px,3vw,29px);line-height:1.25;\"\u003eV-style mounting, accessory handle and carrying case\u003c\/h2\u003e\n\u003cp\u003eThe 254mm \/ 10-inch V-style dovetail plate and supplied tube rings provide the mounting arrangement. The supplier specifies a 44mm-wide plate with a 45° profile and 38.5mm raised ring support. Check your mount saddle’s fit and balance the complete imaging assembly.\u003c\/p\u003e\n\u003cp\u003eThe metal carry handle incorporates a V-style finder base and mounting provision for guide equipment and controllers with matching attachments. Mounting fit depends on the accessory’s own base or bracket.\u003c\/p\u003e\n\u003cp\u003eThe CNC-machined aluminium tube has a reversible dew-shield arrangement for compact storage. Supplier-stated fully retracted dimensions are \u003cstrong\u003e114 × 365mm\u003c\/strong\u003e. A fitted, foam-lined carrying case is supplied for storage and transport; the supplier describes protection against moisture, splashes, dust and knocks. This is not a stated immersion rating.\u003c\/p\u003e\n\u003cp\u003eThe supplier quotes 3,800g without defining which accessories are included in that weight. Choose mount capacity using the complete working load, including camera, guiding equipment and cables.\u003c\/p\u003e\n\u003cfigure style=\"margin: 24px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/svbony-sv580-carrying-case-dimensions.webp?v=1790068971\" alt=\"SVBONY SV580 retractable dew shield and portable carrying case\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: auto;\"\u003e\n\u003cfigcaption style=\"margin-top:8px;color:#516171;font-size:13px;line-height:1.6;\"\u003eCompact storage arrangement and supplied protective carrying case.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003ch2 style=\"margin:28px 0 12px;padding-left:14px;border-left:3px solid #b5273c;font-size:clamp(23px,3vw,29px);line-height:1.25;\"\u003eSVBONY SV580 technical specifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eBrand \/ model\u003c\/th\u003e\n\u003ctd\u003eSVBONY SV580\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eManufacturer product code\u003c\/th\u003e\n\u003ctd\u003eF9395B\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eOptical design\u003c\/th\u003e\n\u003ctd\u003ePetzval APO; six elements in four groups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eED glass\u003c\/th\u003e\n\u003ctd\u003eTwo ED elements, including one FCD100 element\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eAperture\u003c\/th\u003e\n\u003ctd\u003e80mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFocal length\u003c\/th\u003e\n\u003ctd\u003e360mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFocal ratio\u003c\/th\u003e\n\u003ctd\u003ef\/4.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eLens coatings\u003c\/th\u003e\n\u003ctd\u003eFMC — fully multi-coated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eImage circle\u003c\/th\u003e\n\u003ctd\u003e44mm; designed for full-frame imaging\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eField correction\u003c\/th\u003e\n\u003ctd\u003eBuilt-in field flattener\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFocuser\u003c\/th\u003e\n\u003ctd\u003eFine-thread helical focuser with lock screw\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eStated focusing travel\u003c\/th\u003e\n\u003ctd\u003e15–20mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCamera-angle adjuster\u003c\/th\u003e\n\u003ctd\u003e360° lockable rotation with scale markings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCamera-side threads\u003c\/th\u003e\n\u003ctd\u003eM48 × 0.75 and M54 × 0.75 male\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eStated camera back focus\u003c\/th\u003e\n\u003ctd\u003e55mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eInternal filter compatibility\u003c\/th\u003e\n\u003ctd\u003eMounted 2-inch filters; M48 adapter connection only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eFront thread\u003c\/th\u003e\n\u003ctd\u003eM93 × 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTube interface\u003c\/th\u003e\n\u003ctd\u003eM76 × 1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDovetail plate\u003c\/th\u003e\n\u003ctd\u003eV-style; 254mm \/ 10-inch length\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDovetail profile\u003c\/th\u003e\n\u003ctd\u003eSupplier specifies 44mm width and 45° profile\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eRing support height\u003c\/th\u003e\n\u003ctd\u003eSupplier specifies 38.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eCarry handle\u003c\/th\u003e\n\u003ctd\u003eMetal handle with integrated V-style finder base\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eTube construction\u003c\/th\u003e\n\u003ctd\u003eCNC-machined aluminium\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eDew shield\u003c\/th\u003e\n\u003ctd\u003eReversible \/ retractable arrangement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eStowed dimensions\u003c\/th\u003e\n\u003ctd\u003eSupplier specifies 114 × 365mm, fully retracted\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eQuoted weight\u003c\/th\u003e\n\u003ctd\u003eSupplier lists 3,800g; included accessories in this figure are not specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003cth scope=\"row\"\u003eElectronic focusing\u003c\/th\u003e\n\u003ctd\u003eInstallation kit supplied; motorised focuser sold separately\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch2 style=\"margin:28px 0 12px;padding-left:14px;border-left:3px solid #b5273c;font-size:clamp(23px,3vw,29px);line-height:1.25;\"\u003eWhat is included with the SV580?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSV580 80mm f\/4.5 Petzval APO optical tube assembly.\u003c\/li\u003e\n\u003cli\u003ePair of tube rings.\u003c\/li\u003e\n\u003cli\u003eMetal carry handle with integrated V-style finder base.\u003c\/li\u003e\n\u003cli\u003e254mm V-style dovetail plate.\u003c\/li\u003e\n\u003cli\u003eM48 and M54 camera adapter rings.\u003c\/li\u003e\n\u003cli\u003eEAF installation kit: mounting brackets, timing belt and 4mm \/ 5mm timing pulleys.\u003c\/li\u003e\n\u003cli\u003eMetal front lens cap and M48 dust cap.\u003c\/li\u003e\n\u003cli\u003ePortable, fitted carrying case.\u003c\/li\u003e\n\u003cli\u003eUser manual.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cfigure style=\"margin: 24px 0;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/svbony-sv580-included-items.webp?v=1790068991\" alt=\"Items included with the SVBONY SV580 astrograph\" loading=\"lazy\" style=\"display: block; max-width: 100%; height: auto; margin: auto;\"\u003e\n\u003cfigcaption style=\"margin-top:8px;color:#516171;font-size:13px;line-height:1.6;\"\u003eSupplier illustration of the SV580 package contents.\u003c\/figcaption\u003e\n\u003c\/figure\u003e\n\u003cp\u003e\u003cstrong\u003eSold separately:\u003c\/strong\u003e camera, tracking mount, electronic focuser, filters, guiding equipment, controller, power supply and any additional camera-specific adapters.\u003c\/p\u003e\n\u003ch2 style=\"margin:28px 0 12px;padding-left:14px;border-left:3px solid #b5273c;font-size:clamp(23px,3vw,29px);line-height:1.25;\"\u003eSV580 camera compatibility and setup questions\u003c\/h2\u003e\n\u003ch3\u003eCan I use the SV580 with a full-frame or APS-C astronomy camera?\u003c\/h3\u003e\n\u003cp\u003eYes. The stated 44mm image circle is intended for full-frame coverage and also supports smaller APS-C sensors. Choose suitable camera adapters and check imaging-train spacing, clear apertures and sensor alignment.\u003c\/p\u003e\n\u003ch3\u003eDoes the SV580 need a separate field flattener?\u003c\/h3\u003e\n\u003cp\u003eNo separate field flattener is required for the native Petzval imaging configuration: field correction is built into the telescope.\u003c\/p\u003e\n\u003ch3\u003eWhat back focus does the SVBONY SV580 require?\u003c\/h3\u003e\n\u003cp\u003eThe supplier states 55mm. Include the camera’s sensor or flange distance and the thickness of adapters and accessories when planning the assembly.\u003c\/p\u003e\n\u003ch3\u003eCan I fit a 2-inch astrophotography filter inside the telescope?\u003c\/h3\u003e\n\u003cp\u003eThe supplier specifies internal mounted 2-inch filter compatibility with the M48 adapter connection only. For an external filter wheel or drawer, check its threads, clear aperture and spacing.\u003c\/p\u003e\n\u003ch3\u003eIs a ZWO EAF included?\u003c\/h3\u003e\n\u003cp\u003eNo. The installation kit is included, while the motorised focuser is separate. The supplier identifies second-generation ZWO EAF compatibility; other models need their mounting details checked.\u003c\/p\u003e\n\u003ch3\u003eCan I use a DSLR or mirrorless camera?\u003c\/h3\u003e\n\u003cp\u003eYes, with the appropriate camera-specific adapter and suitable spacing. The supplied M48\/M54 rings do not replace the bayonet adapter needed for your particular camera body.\u003c\/p\u003e\n\u003ch3\u003eWhat mount do I need for SV580 deep-sky imaging?\u003c\/h3\u003e\n\u003cp\u003eUse a suitable tracking mount with a compatible V-style saddle and capacity for the complete imaging rig. Camera and accessory weight, balance and guiding requirements should be considered together.\u003c\/p\u003e\n\u003ch3\u003eIs the £50 reservation the full telescope price?\u003c\/h3\u003e\n\u003cp\u003eNo. The full UK telescope price is to be confirmed. Your £50 reserves a place in our presale queue and is deducted from the final telescope price if you proceed.\u003c\/p\u003e\n\u003ch3\u003eWhen will I pay the balance, and can I cancel?\u003c\/h3\u003e\n\u003cp\u003eWe will contact you with confirmed UK pricing and availability before you accept the final purchase offer. Your reservation is refundable before that acceptance. Allocation is subject to available stock; UK delivery timing is to be confirmed.\u003c\/p\u003e\n\u003ch2 style=\"margin:28px 0 12px;padding-left:14px;border-left:3px solid #b5273c;font-size:clamp(23px,3vw,29px);line-height:1.25;\"\u003eLatest SV580 optical design and imaging news\u003c\/h2\u003e\n\u003cp\u003eSVBONY’s 7 October 2026 engineering update adds Zemax spot analysis and a California Nebula imaging example made with an SV580 and ZWO ASI2600MC. The example uses an APS-C sensor; it complements the manufacturer’s optical simulations and stated 44mm image circle when assessing the telescope for a larger-sensor setup.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.svbony.com\/blog\/why-petzval-apo-sv580-optical-design-zemax-analysis-imaging\" target=\"_blank\" rel=\"noopener\"\u003eRead SVBONY’s SV580 optical design and imaging analysis\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2 style=\"margin:28px 0 12px;padding-left:14px;border-left:3px solid #b5273c;font-size:clamp(23px,3vw,29px);line-height:1.25;\"\u003eBuild your SV580 astrophotography setup\u003c\/h2\u003e\n\u003cp\u003eBrowse our \u003ca href=\"\/collections\/astronomy-cameras\"\u003eastronomy cameras for deep-sky imaging\u003c\/a\u003e, explore the \u003ca href=\"\/pages\/astrophotography-hub\"\u003eDark Clear Skies astrophotography equipment hub\u003c\/a\u003e, or see our full \u003ca href=\"\/collections\/svbony\"\u003eSVBONY astronomy equipment range\u003c\/a\u003e. Contact Dark Clear Skies with your camera, mount and accessory details for help checking an SV580 imaging setup.\u003c\/p\u003e\n\u003cp\u003e\u003csmall\u003eSpecifications and package details are based on SVBONY’s supplied SV580 product information. Images showing cameras, electronic focusers or other attached equipment illustrate setup options; only the listed package contents are included.\u003c\/small\u003e\u003c\/p\u003e\u003cdiv style=\"margin:28px 0 0;padding:24px;border:1px solid #243548;border-radius:14px;background:#07111e;color:#ffffff;\"\u003e\n\u003ch2 style=\"margin:0 0 12px;color:#ffffff;font-size:26px;line-height:1.25;\"\u003eReserve your SV580 for £50\u003c\/h2\u003e\n\u003cp style=\"margin:0 0 18px;color:#e5edf5;line-height:1.7;\"\u003eJoin our UK presale queue with a refundable reservation. The full telescope price and UK delivery timing are to be confirmed; we will explain both before you decide whether to proceed.\u003c\/p\u003e\n\u003cp style=\"margin:0;\"\u003e\u003ca href=\"#MainContent\" style=\"display:inline-block;max-width:100%;box-sizing:border-box;padding:13px 20px;border-radius:8px;background:#b5273c;color:#ffffff;text-decoration:none;font-weight:700;line-height:1.4;\"\u003eJoin our £50 presale queue ↑\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"SVBONY","offers":[{"title":"Default Title","offer_id":55672451465592,"sku":"DCS-SV580-RES","price":50.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/1650\/4241\/files\/svbony-sv580-80mm-f4-5-petzval-apo-astrograph-main.webp?v=1790068918","url":"https:\/\/www.darkclearskies.co.uk\/products\/svbony-sv580-80mm-f4-5-petzval-apo-astrograph","provider":"Dark Clear Skies ","version":"1.0","type":"link"}