{"product_id":"askar-140-apo-140mm-f-7-triplet-refractor-telescope-140apo","title":"Askar 140 APO 140mm f\/7 Triplet Refractor Telescope # 140APO","description":"\u003cp\u003eThe Askar 140APO is an OTA with a 140mm aperture, 980mm focal length, and f\/7 native focal ratio.\u003c\/p\u003e\n\u003cp\u003eThe aperture of 140mm gives it an inherent advantage in terms of light-gathering power, resolution, brightness, and contrast, allowing the photographer to gather more light and present more details and brighter objects in the image. Along with more light coming into the astrograph, the limiting magnitude can reach 12.5.\u003c\/p\u003e\n\u003cp\u003eThe Askar 140APO adopts a triplet air-spaced APO lens design, including one piece of ED glass.\u003c\/p\u003e\n\u003cp\u003eThe Askar APO series employs special optical designs and multiple lens elements to correct chromatic aberration, naturally providing higher-quality object details and color accuracy.\u003c\/p\u003e\n\u003cp\u003eIn the refractor's element structure, increasing the number of lens elements and designing lens combinations can effectively improve chromatic aberration correction. However, this also means increased production costs and design complexity.\u003c\/p\u003e\n\u003cp\u003eED glass, also known as low-dispersion glass, is a type of optical glass specifically designed to reduce chromatic aberration.\u003c\/p\u003e","brand":"Askar","offers":[{"title":"Default Title","offer_id":48018923913470,"sku":"140APO","price":2499.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2129\/9429\/files\/76675a63-17a7-4195-9e27-8b9edc65b226.png_1180xaf.webp?v=1775077720","url":"https:\/\/octelescope.com\/products\/askar-140-apo-140mm-f-7-triplet-refractor-telescope-140apo","provider":"oc telescope","version":"1.0","type":"link"}