{"product_id":"svbony-petzval-astrograph-203mm-lens-f-4-5-w9317b","title":"SVBONY SV545 Petzval Astrograph 203mm Lens F\/4.5 (W9317B)","description":"\u003cdiv style=\"text-align: start;\" class=\"modal-body\"\u003e\n\u003ch1 class=\"text-center\"\u003eSVBONY SV545 Petzval Astrograph 203mm Lens F\/4.5\u003c\/h1\u003e\n\u003ch2 class=\"text-center\"\u003eKey Features\u003c\/h2\u003e\n\u003cul style=\"list-style: none; padding: 0; margin: 0;\"\u003e\n\u003cli style=\"margin-bottom: 20px;\"\u003e\n\u003ch4 style=\"margin-bottom: 8px; font-size: 16px; font-weight: 600; color: #333;\"\u003eAdvanced 3G5E Petzval APO Design\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #666; line-height: 1.6;\"\u003eOur 3-group, 5-element triplet Petzval APO structure ensures superior optical consistency and portability compared to complex 6-group all-separated designs—delivering exceptional sharpness with a simpler, more reliable form.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 20px;\"\u003e\n\u003ch4 style=\"margin-bottom: 8px; font-size: 16px; font-weight: 600; color: #333;\"\u003eBuilt-in Flat Field for Perfect Frame\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #666; line-height: 1.6;\"\u003eFeaturing a native flat-field design, it eliminates the need for external correctors—saving cost and setup time while providing edge-to-edge star clarity right out of the box.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 20px;\"\u003e\n\u003ch4 style=\"margin-bottom: 8px; font-size: 16px; font-weight: 600; color: #333;\"\u003eIntegrated Focus with EAF Readiness\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #666; line-height: 1.6;\"\u003eThe one-piece helical focuser comes pre-equipped for Electronic Auto Focuser (EAF) mounting—enabling smooth, automated fine-tuning during imaging, unlike separate manual focus systems.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 20px;\"\u003e\n\u003ch4 style=\"margin-bottom: 8px; font-size: 16px; font-weight: 600; color: #333;\"\u003eUniversal Compatibility \u0026amp; Easy Integration\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #666; line-height: 1.6;\"\u003eDesigned with standard threaded interfaces and ample back focus, it seamlessly connects to DSLRs, astronomy cameras, and filter wheels—streamlining your imaging train without adapters.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli style=\"margin-bottom: 20px;\"\u003e\n\u003ch4 style=\"margin-bottom: 8px; font-size: 16px; font-weight: 600; color: #333;\"\u003eRobust Build for Demanding Conditions\u003c\/h4\u003e\n\u003cp style=\"margin: 0; font-size: 14px; color: #666; line-height: 1.6;\"\u003eWith an all-metal body, protective lens coatings, and sealed construction, it performs reliably in humid or dusty environments—made for lasting performance under the stars.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-bottom: 20px;\"\u003e\u003cimg style=\"float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/W9317B-Description-10_20251219101629_5486_1024x1024.webp?v=1769901312\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 20px;\"\u003e\u003cimg style=\"float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/W9317B-Description-12_20251219101635_4375_1024x1024.webp?v=1769901342\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 20px;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/W9317B-Description-14_20251219101641_3151.webp?v=1769901368\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 20px;\"\u003e\u003cimg style=\"float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/W9317B-Description-16_20251219101713_3423_1024x1024.webp?v=1769901385\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 20px;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/W9317B-Description-18_20251219101718_2772.webp?v=1769901411\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 20px;\"\u003e\u003cimg style=\"float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/W9317B-Description-20_20251219101723_5148_1024x1024.webp?v=1769901426\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 20px;\"\u003e\u003cimg style=\"float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/W9317B-Description-22_20251219101729_5597_1024x1024.webp?v=1769901445\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 20px;\"\u003e\u003cimg alt=\"\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/W9317B-Description-23_20251219101734_2821.webp?v=1769901491\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 20px;\"\u003e\u003cimg style=\"float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/W9317B-Description-24_20251219101755_4933_1024x1024.webp?v=1769901507\"\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 20px;\"\u003e\u003cimg style=\"float: none;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/W9317B-Description-26_20251219101800_4141_1024x1024.webp?v=1769901532\"\u003e\u003c\/p\u003e\n\u003ch3 style=\"margin-bottom: 20px;\"\u003eTechnical Specifications \u003c\/h3\u003e\n\u003ctable style=\"width: 100%; height: 225px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 15.75pt;\" height=\"21\"\u003e\n\u003ctd style=\"height: 17.25pt; width: 263.25pt; text-align: center;\" width=\"351\" height=\"23\" class=\"et2\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eModel\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 136.5pt; text-align: center;\" width=\"182\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eSV545\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 25.6076px;\"\u003e\n\u003ctd style=\"height: 17.25pt; text-align: center;\" height=\"23\" class=\"et2\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eObjective Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003ePetzval Design（5 Elements in 3 Groups)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.75pt;\" height=\"21\"\u003e\n\u003ctd style=\"height: 17.25pt; text-align: center;\" height=\"23\" class=\"et2\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eAperture\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e45mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 15.75pt;\" height=\"21\"\u003e\n\u003ctd style=\"height: 17.25pt; text-align: center;\" height=\"23\" class=\"et2\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eOptic Coated\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eFMC\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"height: 17.25pt; text-align: center;\" height=\"23\" class=\"et2\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eFocal Length\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e203mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"height: 17.25pt; text-align: center;\" height=\"23\" class=\"et2\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eFocal Ratio\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003ef\/4.5\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"height: 17.25pt; text-align: center;\" height=\"23\" class=\"et2\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eFocuser\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eHelical\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"height: 17.25pt; text-align: center;\" height=\"23\" class=\"et2\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eLockable 360º rotator\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eYes\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"height: 17.25pt; text-align: center;\" height=\"23\" class=\"et2\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eMount Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eDovetail Plate\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"height: 17.25pt; text-align: center;\" height=\"23\" class=\"et2\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eBack-end connection\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eM48x0.75 male thread\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003eEstimated weight\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\u003cspan style=\"font-size: 16px;\"\u003e2750g\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp style=\"margin-bottom: 20px;\"\u003e \u003c\/p\u003e\n\u003ch3 style=\"margin-bottom: 20px;\"\u003eIn the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAstro APO Camera Lens\u003c\/li\u003e\n\u003cli\u003eEAF Mount Kit\u003c\/li\u003e\n\u003cli\u003eHandle with integrated Vixen Finder saddle\u003c\/li\u003e\n\u003cli\u003eDovetail plate\u003c\/li\u003e\n\u003cli\u003eCamera Angle Adjuster\u003c\/li\u003e\n\u003cli\u003e2\" Filter Holder (assembled with the Lens)\u003c\/li\u003e\n\u003cli\u003ePlastic Lens Cover\u003c\/li\u003e\n\u003cli\u003eM48 Metal Lens Cover\u003c\/li\u003e\n\u003cli\u003eSoft Padded Case\u003c\/li\u003e\n\u003cli\u003eWrench \u0026amp; Screw\u003c\/li\u003e\n\u003cli\u003eInstruction Manual\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWarranty \u0026amp; Manual\u003c\/h3\u003e\n\u003cp\u003eSVBONY 1 Year Warranty\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 20px;\"\u003e \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Svbony","offers":[{"title":"Default Title","offer_id":48354529837285,"sku":"SVB-W9317B","price":549.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/W9317B-W9184D-0_20251211154959_7509.webp?v=1769901740","url":"https:\/\/istronomyplus.com\/products\/svbony-petzval-astrograph-203mm-lens-f-4-5-w9317b","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}