{"product_id":"zwo-ff-apo-flat-field-apochromatic-refractor-astronomical-telescope-lightweight-70mm-90mm-110mm-131mm","title":"ZWO FF APO Flat Field Apochromatic Refractor Astronomical Telescope Lightweight 70mm 90mm 110mm 131mm","description":"\u003cp\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003eSpecifications (Depending on Selected Model):\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e\u003cspan style=\"color: rgb(0, 0, 0);\"\u003e\u003cstrong\u003eFF70 70mm F\/7.0:\u003c\/strong\u003e\u003c\/span\u003e\u003cbr\u003e- Product Name: FF70 APO\u003cbr\u003e- Effective Aperture: 70mm\u003cbr\u003e- Focal Length: 490mm\u003cbr\u003e- Focal Ratio: f\/7.0\u003cbr\u003e- Objective Type: Four-element air-spaced APO (includes 1 ED element)\u003cbr\u003e- Image Circle: 44mm\u003cbr\u003e- Maximum Rear Connection Length (Focuser Retracted)     \u003cbr\u003e  Imaging Mode: 82.5 mm (measured from M48x0.75 male thread); 100.5 mm (measured from M54x0.75 male thread)\u003cbr\u003e  Observation Mode: 117 mm (measured from 1.25″ eyepiece holder); 127 mm (measured from 2″ eyepiece holder)\u003cbr\u003e  Overall Length: 372.5 mm (with 1.25″ interface retracted); 415 mm (with photography extension tube retracted); 430.9 mm (with 1.25″ interface extended); 473.4 mm (with photography extension tube extended)\u003cbr\u003e- Telescope Body Weight: 2.5kg\u003cbr\u003e- Standard Configuration Weight: 3.0kg (including handle, mounting rings, and dovetail plate)\u003cbr\u003e- Rear Interfaces:\u003cbr\u003e  M64x0.75-M54x0.75\u003cbr\u003e  M54x0.75-M54x0.75\u003cbr\u003e  M54x0.75-M48x0.75 (built-in M48x0.75 filter thread)\u003cbr\u003e- Interface of the three-stage imaging adapter: M48x0.75\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFF90 90mm F\/6.8:\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e- Product Name: FF90 APO\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Effective Aperture: 90mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Focal Length: 609mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Focal Ratio: f\/6.8\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Objective Type: Four-element air-spaced APO (includes 1 ED element)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Image Circle: 44mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Maximum Rear Connection Length (Focuser Retracted)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  Imaging Mode: 75mm (measured from M48x0.75 male thread); 93mm (measured from M54x0.75 male thread)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  Observation Mode: 112mm (measured from 1.25″ eyepiece holder); 122mm (measured from 2″ eyepiece holder)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  Overall Length: 513mm (with 1.25″ interface retracted); 550mm (with photography extension tube retracted); 599mm (with 1.25″ interface extended); 636mm (with photography extension tube extended)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Telescope Body Weight: 3.92kg\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Standard Configuration Weight: 4.52kg (including handle, mounting rings, and dovetail plate)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Rear Interfaces:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  M64x0.75-M54x0.75\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  M54x0.75-M54x0.75\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  M54x0.75-M48x0.75 (built-in M48x0.75 filter thread)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFF110 110mm F\/7.0:\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e- Product Name: FF110 APO\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Effective Aperture: 110mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Focal Length: 766mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Focal Ratio: f\/7.0\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Objective Type: Four-element air-spaced APO (includes 1 ED element)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Image Circle: 44mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Maximum Rear Connection Length (Focuser Retracted)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  Imaging Mode: 73mm (measured from M48x0.75 male thread); 91mm (measured from M54x0.75 male thread)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  Observation Mode: 132mm (measured from 1.25″ eyepiece holder); 142mm (measured from 2″ eyepiece holder)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Minimum Rear Connection Length (Focuser Retracted)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  Imaging Mode: 42mm (measured from M48x0.75 male thread); 60mm (measured from M54x0.75 male thread)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  Observation Mode: 101mm (measured from 1.25″ eyepiece holder); 111mm (measured from 2″ eyepiece holder)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Overall Length: 664mm (with 1.25″ interface retracted); 728mm (with photography extension tube retracted); 751mm (with 1.25″ interface extended); 815mm (with photography extension tube extended)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Telescope Body Weight: 5.74kg\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Standard Configuration Weight: 6.76kg (including handle, mounting rings, and dovetail plate)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Rear Interfaces:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  M78x1- 55mm Extension Adapter\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  M78x1 - M54x0.75\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  M54x0.75 - M54x0.75\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  M54x0.75 - M48x0.75 (built-in M48x0.75 filter thread)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eFF131 131mm F\/7.5:\u003c\/strong\u003e\u003cbr\u003e\u003cspan\u003e- Product Name: FF131 APO\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Effective Aperture: 131mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Focal Length: 983mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Focal Ratio: f\/7.5\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Objective Type: Four-element air-spaced APO (includes 1 ED element)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Image Circle: 44mm\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Maximum Rear Connection Length (Focuser Retracted)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  Imaging Mode: 73mm (measured from M48x0.75 male thread); 91mm (measured from M54x0.75 male thread)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  Observation Mode: 131mm (measured from 1.25” eyepiece holder); 142mm (measured from 2” eyepiece holder)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Minimum Rear Connection Length (Focuser Retracted)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  Imaging Mode: 42mm (measured from M48x0.75 male thread); 60mm (measured from M54x0.75 male thread)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  Observation Mode: 100mm (measured from 1.25” eyepiece holder); 111mm (measured from 2” eyepiece holder)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Overall Length: 878mm (with 1.25” interface retracted); 941mm (with photography extension tube retracted); 963mm (with 1.25” interface extended); 1026mm (with photography extension tube extended)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Telescope Body Weight: 7.9kg\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Standard Configuration Weight: 9.4kg (including handle, mounting rings, and dovetail plate)\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e- Rear Interfaces:\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  M78x1- 55mm Extension Adapter\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  M78x1 - M54x0.75\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  M54x0.75 - M54x0.75\u003c\/span\u003e\u003cbr\u003e\u003cspan\u003e  M54x0.75 - M48x0.75 (built-in M48x0.75 filter thread)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan style=\"background-color: rgb(255, 255, 0);\"\u003e\u003cb\u003ePackage Included:\u003c\/b\u003e\u003c\/span\u003e\u003cbr\u003e- 1 x Set of APO\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-01.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-02.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-03.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-04.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-05.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-06.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-07.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-08.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-09.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-10.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-11.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-12.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-13.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-14.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-15.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-16.jpg\"\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/www.comseek.com\/image\/catalog\/103886\/103886-17.jpg\"\u003e\u003c\/p\u003e","brand":"ZWO","offers":[{"title":"FF70 70mm F\/7.0","offer_id":41176390074417,"sku":"103886","price":801.94,"currency_code":"USD","in_stock":true},{"title":"FF90 90mm F\/6.8","offer_id":41176390107185,"sku":"103887","price":1327.61,"currency_code":"USD","in_stock":true},{"title":"FF110 110mm F\/7.0","offer_id":41176390139953,"sku":"103888","price":2054.41,"currency_code":"USD","in_stock":true},{"title":"FF131 131mm F\/7.5","offer_id":41176390172721,"sku":"103889","price":2878.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0578\/4790\/6353\/files\/103886-1.jpg?v=1786675418","url":"https:\/\/www.thanksbuyer.com\/es\/products\/zwo-ff-apo-flat-field-apochromatic-refractor-astronomical-telescope-lightweight-70mm-90mm-110mm-131mm","provider":"Thanksbuyer Online,SDR Radio, Testers and Measurement devices, Astronomy products,  Audio Amplifer and Decoders","version":"1.0","type":"link"}