{"product_id":"ioptron-6242-30","title":"iOptron Super View 68° 30mm Eyepiece (2\")","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e30mm Focal Length\u003c\/li\u003e\n\u003cli\u003e68° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e2-inch Barrel Diameter\u003c\/li\u003e\n\u003cli\u003eLow-Power, Wide-Field Design\u003c\/li\u003e\n\u003cli\u003eIdeal for Locating and Framing Large Objects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- more --\u003e\n\u003cul class=\"tabs\"\u003e\n\u003cli class=\"active\"\u003eDescription\u003c\/li\u003e\n\u003cli\u003eFAQ\u003c\/li\u003e\n\u003cli\u003eSpecifications\u003c\/li\u003e\n\u003cli\u003eIn the Box\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul class=\"tabs-content\"\u003e\n\u003cli class=\"active\"\u003e\n\u003cdiv\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section-center\"\u003e\n\u003ch2\u003eiOptron Super View 68° 30mm Eyepiece (2\")\u003c\/h2\u003e\n\u003cp\u003eThe iOptron Super View 68° 30mm Eyepiece delivers an expansive window into the cosmos, combining a long 30mm focal length with a generous 68° apparent field of view. Designed for the 2-inch format, this eyepiece provides the low magnification needed to frame large deep-sky objects and easily locate targets in long focal length telescopes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003e30mm Focal Length and 68° Field: Your Finder Eyepiece for Deep Sky\u003c\/h3\u003e\n\u003cp\u003eWith its 30mm focal length, this eyepiece yields very low magnification, transforming your telescope into a rich-field instrument for sweeping the Milky Way. The 68° apparent field of view feels significantly more immersive than a standard Plössl, allowing you to fit entire star clusters like the Pleiades (M45) or the full extent of the Andromeda Galaxy (M31) into a single frame.\u003c\/p\u003e\n\u003cp\u003eThis combination makes the Super View 30mm an excellent \"finder\" eyepiece. Instead of searching for faint objects through the narrow field of a high-power eyepiece, you can use its wide perspective to center your target before increasing magnification.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-bg-light\"\u003e\n\u003cdiv class=\"DAV-section\"\u003e\n\u003ch3\u003eThe 2-Inch Barrel Advantage for Maximum Field of View\u003c\/h3\u003e\n\u003cp\u003eThe 2-inch barrel is essential for achieving such a wide true field of view at a long 30mm focal length. A smaller 1.25-inch barrel would physically vignette the light path, cutting off the edges of the view. This larger format ensures you see every bit of the 68° field your eyepiece is designed to deliver.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDeep Sky Scanning:\u003c\/strong\u003e The low power and wide field are ideal for observing large, faint nebulae like the North American Nebula (NGC 7000) or the Veil Nebula complex.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility Note:\u003c\/strong\u003e To use this eyepiece, your telescope must be equipped with a 2-inch focuser and a 2-inch diagonal. It is not compatible with telescopes that only accept 1.25-inch accessories.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExit Pupil Consideration:\u003c\/strong\u003e In very fast telescopes (f\/5 or below), the exit pupil produced by this eyepiece can become quite large. This may reveal the shadow of your telescope's secondary mirror, a trade-off for its expansive field of view.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the iOptron Super View 30mm eyepiece best for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe iOptron Super View 30mm is a low-power, wide-field eyepiece ideal for three main tasks: locating objects, observing large deep-sky targets like open clusters and galaxies, and sweeping across dense star fields like the Milky Way.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the Super View 68° 30mm eyepiece perform in an 8\" f\/10 SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIt's an excellent match. In a typical 8\" f\/10 SCT with a 2032mm focal length, the Super View 30mm will provide 68x magnification and a true field of view of approximately 1°. This is wide enough to frame the entire Andromeda Galaxy (M31) or the Orion Nebula (M42) with surrounding context, making it a superb deep-sky eyepiece for this type of telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDoes the 2\" barrel on the Super View 30mm eyepiece offer an advantage over 1.25\" eyepieces?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, a significant one. A 1.25\" barrel has a physical limit on the field of view it can deliver at long focal lengths. The 2\" barrel of the Super View 30mm allows for a much larger field stop, which is necessary to provide a wide 68° apparent field at 30mm without vignetting (darkening at the edges of the view).\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I see the entire Pleiades (M45) with the Super View 68° 30mm eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, in most amateur telescopes. For example, in a telescope with a 1000mm focal length, this eyepiece gives 33x magnification and a true field of view over 2°. Since the Pleiades (M45) cluster is about 1.8° across, it will fit comfortably within the field of view with room to spare.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the iOptron Super View 30mm a good \"finder\" eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eAbsolutely. Its low magnification and wide field of view make it much easier to scan the sky and locate your desired target. Many observers start with an eyepiece like this to center an object before switching to higher magnifications for detailed views.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need a 2\" diagonal to use the Super View 30mm eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. This eyepiece has a 2-inch barrel and requires a telescope with a 2-inch focuser. For refractors and Schmidt-Cassegrain telescopes, you will also need a 2-inch star diagonal to connect it to your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ctable class=\"DAV-specifications\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFocal Length\u003c\/td\u003e\n\u003ctd\u003e30mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e68°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e2\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/ioptron-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eiOptron Warranty Policy\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"iOptron","offers":[{"title":"Default Title","offer_id":52917294989597,"sku":"IOP-6242-30","price":111.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/iOptron-Super-View-68-30mm-Eyepiece-2-1_ca53944d-904a-4cfb-ade3-159af0f195db.jpg?v=1789142190","url":"https:\/\/davidastro.com\/products\/ioptron-6242-30","provider":"David Astro","version":"1.0","type":"link"}