{"product_id":"starfield-ed102-f-7-560mm-fpl-53-apo-doublet-s102","title":"Starfield ED102 F\/7 560mm FPL-53 APO Doublet (S102)","description":"\u003ch2\u003eStarfield ED102 F\/7 560mm FPL-53 APO Doublet\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eThe Starfield ED102 APO doublet offers incredible performance in both imaging a visual astronomy. Using FPL53 (Ohara, Japan) and a lanthanum element, chromatic correction rivals more expensive triplet telescopes with the advantage of faster cool down time.  Taken to the highest magnification, images and views remain colour free.  This fast refractor for lunar and solar system observation and demanding astrophotography applications.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" src=\"https:\/\/img1.wsimg.com\/isteam\/ip\/d66e8571-427a-4cd6-ac4e-4734ad6fa841\/ED102_2.jpg\/:\/cr=t:0%25,l:0%25,w:100%25,h:100%25\/rs=w:600,h:300,cg:true\" alt='ED102 f\/7 APO with 2.5\" focuser' width=\"301\" height=\"247\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp role=\"heading\" aria-level=\"4\" data-ux=\"ContentHeading\" data-aid=\"ABOUT_HEADLINE_RENDERED1\" data-typography=\"HeadingDelta\" class=\"x-el x-el-h4 c1-53 c1-3b c1-18 c1-19 c1-9v c1-4r c1-4s c1-1b c1-1c c1-b c1-36 c1-c c1-26 c1-d c1-e c1-f c1-g\"\u003e\u003cstrong\u003eHIGH QUALITY BUILD AND FEATURES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv data-ux=\"ContentText\" data-aid=\"ABOUT_DESCRIPTION_RENDERED1\" data-typography=\"BodyAlpha\" class=\"x-el c1-1 c1-2 c1-18 c1-19 c1-1a c1-1b c1-1c c1-8x c1-8y c1-8z c1-90 c1-91 c1-92 c1-93 c1-94 c1-95 c1-96 c1-97 c1-98 c1-99 c1-9a c1-9b c1-9c c1-9d c1-9e c1-9f c1-9g c1-9h c1-9i c1-9j c1-9k c1-9l c1-9m c1-9n c1-9o c1-87 c1-b c1-4w c1-c c1-26 c1-d c1-e c1-f c1-g x-rt\" alignment=\"left\"\u003e\n\u003cul\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003e2.5\" two speed rack and pinion focuser, with ball bearings, that is also fully rotatable rotation. Optional Motor focusers can easily be installed. Self centering rotational lock. No setscrews to come loose. Support for heavy camera loads and accessories.\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eSupports 2\" and 1.25\" eyepiece accessories\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eHD CNC tube rings and Vixen style dovetail bar\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eRetractable dew shield retractable for transport. With dew shield retracted the total length is 24”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"x-el x-el-div x-el c1-1 c1-2 c1-r c1-6s c1-4 c1-8q c1-8r c1-2w c1-8s c1-8n c1-b c1-c c1-8t c1-8u c1-d c1-e c1-f c1-g c1-1 c1-2 c1-b c1-c c1-d c1-e c1-f c1-g\" id=\"27d7aa74-dc35-48f9-948a-96d44e603165\" data-ux=\"ContentBasic\"\u003e\n\u003cdiv class=\"x-el c1-1 c1-2 c1-18 c1-19 c1-1a c1-1b c1-1c c1-8w c1-8x c1-8y c1-8z c1-90 c1-91 c1-92 c1-93 c1-94 c1-95 c1-96 c1-97 c1-98 c1-99 c1-9a c1-9b c1-9c c1-9d c1-9e c1-9f c1-9g c1-9h c1-9i c1-9j c1-9k c1-9l c1-9m c1-9n c1-86 c1-b c1-4w c1-c c1-26 c1-d c1-e c1-f c1-g x-rt\" data-typography=\"BodyAlpha\" data-aid=\"CONTENT_DESCRIPTION1_RENDERED\" data-ux=\"ContentText\" alignment=\"left\"\u003e\n\u003cp class=\"x-el x-el-h4 c1-53 c1-3b c1-18 c1-19 c1-9v c1-4r c1-4s c1-1b c1-1c c1-b c1-36 c1-c c1-26 c1-d c1-e c1-f c1-g\" data-typography=\"HeadingDelta\" data-aid=\"ABOUT_HEADLINE_RENDERED2\" data-ux=\"ContentHeading\" aria-level=\"4\" role=\"heading\"\u003e\u003cstrong\u003e\u003cimg data-mce-fragment=\"1\" src=\"https:\/\/img1.wsimg.com\/isteam\/ip\/d66e8571-427a-4cd6-ac4e-4734ad6fa841\/ED102_3.jpg\/:\/cr=t:0%25,l:0%25,w:100%25,h:100%25\/rs=w:600,h:300,cg:true\" alt=\"102mm f\/7 FPL-53 glass\" style=\"display: block; margin-left: auto; margin-right: auto;\" data-mce-src=\"https:\/\/img1.wsimg.com\/isteam\/ip\/d66e8571-427a-4cd6-ac4e-4734ad6fa841\/ED102_3.jpg\/:\/cr=t:0%25,l:0%25,w:100%25,h:100%25\/rs=w:600,h:300,cg:true\" width=\"280\" height=\"239\"\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"x-el x-el-h4 c1-53 c1-3b c1-18 c1-19 c1-9v c1-4r c1-4s c1-1b c1-1c c1-b c1-36 c1-c c1-26 c1-d c1-e c1-f c1-g\" data-typography=\"HeadingDelta\" data-aid=\"ABOUT_HEADLINE_RENDERED2\" data-ux=\"ContentHeading\" aria-level=\"4\" role=\"heading\"\u003e\u003cstrong\u003eDOUBLET APO 102 MM F\/7 - FPL53 \/ LANTHANUM OBJECTIVE\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"x-el c1-1 c1-2 c1-18 c1-19 c1-1a c1-1b c1-1c c1-8x c1-8y c1-8z c1-90 c1-91 c1-92 c1-93 c1-94 c1-95 c1-96 c1-97 c1-98 c1-99 c1-9a c1-9b c1-9c c1-9d c1-9e c1-9f c1-9g c1-9h c1-9i c1-9j c1-9k c1-9l c1-9m c1-9n c1-9o c1-87 c1-b c1-4w c1-c c1-26 c1-d c1-e c1-f c1-g x-rt\" data-typography=\"BodyAlpha\" data-aid=\"ABOUT_DESCRIPTION_RENDERED2\" data-ux=\"ContentText\" alignment=\"left\"\u003e\n\u003cul\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eAperture 102 mm \/ focal length 714 mm \/ focal ratio f\/7\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eAdjustable doublet in temperature compensated cell\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eImage free of chromatic error due to \"Extra-Low-Dispersion\" FPL53 apo element from Ohara (Japan) and Lanthanum element. Achieving better chromatic correction than comparable apochromats with doublet lenses with lower quality glass.\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eShorter cooling time than with triplet lenses, thus quicker operation possible\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eInternally baffled to prevent stray light and get the contrast you would expect from performance refractors.\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003e2.5\" two speed rack and pinion focuser that is also fully rotatable rotation. Optional Motor focusers can easily be installed. Self centering rotational lock. No setscrews to come loose. Support for heavy camera loads and accessories.\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eSupports 2\" and 1.25\" eyepiece accessories\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eHD CNC tube rings and Vixen style dovetail bar\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eRetractable dew shield retractable for transport. With dew shield retracted the total length is 26”\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eAir-spaced 102mm F7 Doublet ED lens system \u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003e714mm focal length\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eFPL53 ED glass and Lanthanum element housed in a precision adjustable CNC machined lens cell with      temperature compensation interleaving.\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eFully multi coated (STM Coatings)\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eResolving Power (Dawes’ Limit) 1.45 arc seconds\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eVisual Limiting Magnitude 12.2 maximum\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eWeight approx. 12lbs, \u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eOverall length with dew shield retracted, 26 inches.\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eAluminium tube with matte powder coat and hard anodizing finish.\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eRetractable dew shield.\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003e2.5\" \"Rack 'n Pinion\" Geared dual speed focuser with 1:10 micro-fully rotatable focuser. Focuser rotator rides on a Teflon bushing allowing for smooth rotation.\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eSelf-Centering 2\" to 1.25\" reducer with brass compression rings included.\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eVixen style dovetail\u003c\/li\u003e\n\u003cli class=\"x-el x-el-span c1-7v c1-7w c1-b c1-c c1-d c1-e c1-f c1-g\"\u003eHD CNC Tube rings with M6 threaded holes with 30mm spacing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eManuals \u0026amp; Warranty\u003c\/h3\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/istronomyplus.com\/pages\/starfield-warranty\" target=\"_blank\"\u003eStarfield Branded Telescope Limited 3-Year Warranty\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Starfield","offers":[{"title":"Default Title","offer_id":43991516283109,"sku":"SF-S102-07-00","price":1575.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0652\/6245\/2965\/files\/starfield-ed102-f7-560mm-fpl-53-apo-doublet-s102-astronomy-plus.webp?v=1690489485","url":"https:\/\/istronomyplus.com\/products\/starfield-ed102-f-7-560mm-fpl-53-apo-doublet-s102","provider":"Astronomy Plus – Telescopes \u0026 Astrophotography Canada","version":"1.0","type":"link"}