{"title":"Explore Scientific 62° Series Eyepieces","description":"\u003cp\u003eExplore Scientific 62° Series eyepieces are waterproof, argon-purged eyepieces with a 62° apparent field, a step wider than a Plössl while staying compact. The 1.25\" models include 5.5mm, 9mm, 14mm, 20mm and 26mm, and the 32mm and 40mm come in 2\" barrels for low-power views.\u003c\/p\u003e\u003cp\u003eThe range covers planets at high magnification through to wide views of clusters and nebulae, which makes it a practical full set for a first telescope or an upgrade from supplied eyepieces.\u003c\/p\u003e","products":[{"product_id":"explore-scientific-62-9mm-waterproof-eyepiece-1-25","title":"Explore Scientific 62° 9mm Waterproof Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e9mm Focal Length\u003c\/li\u003e\n\u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e1.25\" Barrel Diameter\u003c\/li\u003e\n\u003cli\u003eWaterproof \u0026amp; Argon-Purged\u003c\/li\u003e\n\u003cli\u003eFlat-Field Optical Design\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\u003eDownloads\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\u003eExplore Scientific 62° 9mm Waterproof Eyepiece - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific 62° 9mm Waterproof Eyepiece delivers high-magnification views in a standard 1.25\" barrel, ideal for resolving fine planetary detail and splitting tight double stars. Its 62° apparent field of view provides a wider, more immersive window onto the sky than a typical Plössl design, while its flat-field optics keep stars sharp across the frame.\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\u003eA 62° Flat-Field View in a 1.25\" Barrel\u003c\/h3\u003e\n\u003cp\u003eWith an apparent field of 62°, this eyepiece offers a significant upgrade in sky coverage over conventional Plössls. This wider perspective makes it easier to frame targets and track them in non-motorized mounts. The multi-element, flat-field design corrects for optical aberrations like field curvature, ensuring that stars remain tight points from the center of the field to the very edge.\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\u003eArgon-Purged Construction: A Truly Waterproof Eyepiece\u003c\/h3\u003e\n\u003cp\u003eUnlike standard eyepieces, the Explore Scientific 62° series is fully sealed and purged with inert argon gas. This process prevents internal fogging when moving from a warm house into cold night air and permanently protects the internal lens coatings from moisture, fungus, and dust. This rugged construction ensures long-term optical integrity and allows you to clean the eyepiece without fear of liquids seeping past the seals.\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\u003e9mm Focal Length for High-Contrast Planetary Detail\u003c\/h3\u003e\n\u003cp\u003eThe 9mm focal length is excellent for high-power observation of bright targets. In most telescopes, it yields the right magnification to study cloud bands on Jupiter, the Cassini Division in Saturn's rings, and fine crater detail on the Moon. The high-contrast optics make it easier to employ techniques like averted vision, where you look slightly to the side of a faint object to detect it with the more light-sensitive part of your eye—critical for teasing out detail in planetary nebulae or globular cluster cores.\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\u003eExplore Scientific 62° 9mm vs. a Standard 52° Plössl\u003c\/h3\u003e\n\u003cp\u003eWhile a standard 9mm Plössl is a capable, affordable eyepiece, the Explore Scientific 62° model offers distinct advantages for the dedicated observer.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWider Apparent Field:\u003c\/strong\u003e The 62° field of the Explore Scientific eyepiece feels more immersive and is functionally wider than the typical 52° field of a Plössl, making it easier to locate and track objects.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEdge-to-Edge Sharpness:\u003c\/strong\u003e The flat-field design of the 62° series corrects for off-axis errors that can soften stars at the edge of a Plössl's field, especially in telescopes with faster focal ratios.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAll-Weather Durability:\u003c\/strong\u003e A standard Plössl is not sealed. The argon-purged, waterproof body of the Explore Scientific eyepiece protects it from dew, humidity, and dust for a lifetime of use.\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 objects are best suited for the Explore Scientific 62° 9mm eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe 9mm focal length provides high magnification, making it ideal for observing bright, detailed objects. It excels at revealing features on \u003cstrong\u003eplanets like Jupiter and Saturn\u003c\/strong\u003e, resolving fine detail in \u003cstrong\u003elunar craters\u003c\/strong\u003e, splitting \u003cstrong\u003etight double stars\u003c\/strong\u003e, and viewing the cores of bright \u003cstrong\u003eglobular clusters\u003c\/strong\u003e like M13.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 62° field of view of this Explore Scientific eyepiece compare to a 9mm Plössl?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA standard Plössl eyepiece typically has an apparent field of view around 50°-52°. The \u003cstrong\u003e62° field of the Explore Scientific eyepiece provides a noticeably wider, more expansive view\u003c\/strong\u003e. This makes the observing experience more comfortable and makes it easier to keep an object within the field of view, especially with a non-tracking telescope mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does 'Argon-Purged Waterproof' mean for the Explore Scientific 62° 9mm eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis means the eyepiece barrel is sealed and filled with a dry, inert gas (argon). This has two key benefits:\n\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIt \u003cstrong\u003eprevents internal fogging\u003c\/strong\u003e when the eyepiece is exposed to rapid temperature changes.\u003c\/li\u003e\n\u003cli\u003eIt \u003cstrong\u003eprotects the internal lens surfaces and coatings\u003c\/strong\u003e from moisture, dust, and fungus, ensuring the eyepiece maintains its optical quality for many years.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the Explore Scientific 62° 9mm perform on Jupiter's cloud bands in an 8\" f\/10 SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn a typical 8\" f\/10 SCT with a 2032mm focal length, the 9mm eyepiece will yield a magnification of 226x. This is an \u003cstrong\u003eexcellent magnification for viewing Jupiter\u003c\/strong\u003e, providing a large enough image to clearly resolve the primary equatorial belts, the Great Red Spot (when visible), and potentially smaller ovals and festoons during nights of steady seeing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the 9mm focal length of this Explore Scientific eyepiece a good choice for splitting the Double-Double (Epsilon Lyrae) in a 4\" refractor?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's a very good choice. A 4\" refractor has the resolving power to split the tight components of Epsilon Lyrae, which are separated by about 2.3 arcseconds. A 9mm eyepiece in a typical f\/7 4\" refractor (714mm focal length) would provide about 79x magnification, which is often enough to see the split, but higher power (around 120x or more) is ideal. The high-contrast, sharp optics of the Explore Scientific 62° 9mm will give you a clean view to attempt the split.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre the Explore Scientific 62° eyepieces parfocal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Explore Scientific 62° series is designed to be \u003cstrong\u003enear-parfocal\u003c\/strong\u003e. This means that when you switch between different eyepieces in this series, you should only need to make a very small adjustment to the focuser. This is a convenient feature that saves time and makes it easier to compare views at different magnifications.\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\u003e9mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e62°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaterproof\u003c\/td\u003e\n\u003ctd\u003eYes, Argon-Purged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eFlat-Field\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e812257018635\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\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eExplore Scientific 62° 9mm Eyepiece\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eTop Dust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eBottom Dust Cap\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Explore_Scientific_Introduction_Booklet_Manual.pdf\" target=\"_blank\"\u003e\u003csvg class=\"DAV-img-box\" viewbox=\"0 0 512 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cpath d=\"M0 64C0 28.7 28.7 0 64 0L224 0l0 128c0 17.7 14.3 32 32 32l128 0 0 144-208 0c-35.3 0-64 28.7-64 64l0 144-48 0c-35.3 0-64-28.7-64-64L0 64zm384 64l-128 0L256 0 384 128zM176 352l32 0c30.9 0 56 25.1 56 56s-25.1 56-56 56l-16 0 0 32c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-48 0-80c0-8.8 7.2-16 16-16zm32 80c13.3 0 24-10.7 24-24s-10.7-24-24-24l-16 0 0 48 16 0zm96-80l32 0c26.5 0 48 21.5 48 48l0 64c0 26.5-21.5 48-48 48l-32 0c-8.8 0-16-7.2-16-16l0-128c0-8.8 7.2-16 16-16zm32 128c8.8 0 16-7.2 16-16l0-64c0-8.8-7.2-16-16-16l-16 0 0 96 16 0zm80-112c0-8.8 7.2-16 16-16l48 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 32 32 0c8.8 0 16 7.2 16 16s-7.2 16-16 16l-32 0 0 48c0 8.8-7.2 16-16 16s-16-7.2-16-16l0-64 0-64z\" fill=\"#0047a7\"\u003e\u003c\/path\u003e\u003c\/svg\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDownload Manual\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967199015197,"sku":"ES-EPWP6209LE-01","price":97.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-62-deg-9mm-Waterproof-Eyepiece-EPWP6209LE-01-1__49980.1594240340.1280.1280.jpg?v=1684338708"},{"product_id":"explore-scientific-62-14mm-waterproof-eyepiece-1-25","title":"Explore Scientific 62° 14mm Waterproof Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e14mm Focal Length\u003c\/li\u003e\n\u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e1.25\" Barrel Diameter\u003c\/li\u003e\n\u003cli\u003eWaterproof \u0026amp; Argon-Purged Construction\u003c\/li\u003e\n\u003cli\u003eFlat-Field Multi-Element Design\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\u003eDownloads\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\u003eExplore Scientific 62° 14mm Waterproof Eyepiece - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific 62° 14mm Waterproof Eyepiece provides a generous 62° apparent field of view, offering a more immersive window into the cosmos than standard oculars. Its 14mm focal length delivers versatile medium magnification suitable for any telescope accepting 1.25\" eyepieces.\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\u003eA 62° Flat-Field View for High Contrast\u003c\/h3\u003e\n\u003cp\u003eThis eyepiece is engineered as a flat-field, multi-element system, ensuring stars remain sharp across the entire 62° view. This optical correction is critical for resolving fine detail in open clusters or tracing the faint structures of nebulae right to the edge of the field stop.\u003c\/p\u003e\n\u003cp\u003eThe high-contrast optics make it easier to use averted vision—looking slightly to the side of a faint object—to detect dimmer targets. This technique places the image on a more light-sensitive part of your retina, and the clean optical design of the 62° series enhances this effect for hunting down faint galaxies and nebulosity.\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\u003eA 1.25\" Barrel with Argon-Purged Durability\u003c\/h3\u003e\n\u003cp\u003eDesigned for reliability in all observing conditions, this eyepiece is fully waterproof and purged with inert argon gas. This process prevents internal fogging during nights with heavy dew and permanently seals the optics against dust, fungus, and moisture infiltration.\u003c\/p\u003e\n\u003cp\u003eThe rugged construction ensures the eyepiece can handle the rigors of travel and years of use in the field. The standard 1.25\" barrel provides compatibility with the vast majority of telescope focusers and accessories.\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\u003eExplore Scientific 62° vs. a Standard 52° Plössl\u003c\/h3\u003e\n\u003cp\u003eCompared to a typical 50° or 52° Plössl eyepiece, the 62° apparent field of the Explore Scientific design feels noticeably wider and more engaging. While a Plössl provides a sharp center-field view, the 62° eyepiece offers a more expansive context around your target.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWider Context:\u003c\/strong\u003e The extra 10° of field makes it easier to frame larger objects like the Pleiades (M45) or keep planets within the field of view on non-driven mounts.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlat Field:\u003c\/strong\u003e Unlike many basic eyepieces that show distortion or softness at the edges, this eyepiece's flat-field design maintains image integrity across the view.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrade-Off:\u003c\/strong\u003e While significantly more immersive than a Plössl, the 62° field is not as vast as ultra-wide 82° or 100° eyepieces, which come at a much higher cost and weight.\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 benefit of the Explore Scientific 14mm 62° eyepiece over a kit Plössl?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary benefits are a \u003cstrong\u003ewider 62° apparent field of view\u003c\/strong\u003e for a more immersive experience, a \u003cstrong\u003eflat-field design\u003c\/strong\u003e for sharper edge-to-edge views, and its \u003cstrong\u003ewaterproof, argon-purged construction\u003c\/strong\u003e for superior durability and resistance to internal fogging.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 14mm focal length perform in an 8\" f\/10 SCT for deep-sky?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn a typical 8\" f\/10 Schmidt-Cassegrain with a 2032mm focal length, the Explore Scientific 14mm eyepiece yields 145x magnification. This is an excellent medium power for resolving globular clusters like the Hercules Cluster (M13), viewing details in planetary nebulae like the Ring Nebula (M57), and darkening the sky background to enhance contrast on galaxies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Explore Scientific 14mm 62° eyepiece good for viewing Jupiter?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, at 145x in an 8\" SCT, this eyepiece provides enough magnification to clearly resolve Jupiter's main cloud bands, the Great Red Spot, and its four Galilean moons. The high-contrast, flat-field optics ensure a sharp view of the planet without distracting aberrations at the edge of the field.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"Argon-Purged\" mean for the 14mm 62° eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\"Argon-Purged\" means the air inside the eyepiece has been replaced with inert argon gas and then sealed. This process serves two key purposes: it \u003cstrong\u003eprevents internal lens fogging\u003c\/strong\u003e when moving from a warm house to cold outside air, and it \u003cstrong\u003eprotects the internal coatings\u003c\/strong\u003e from long-term degradation by oxidation or moisture.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eAre the Explore Scientific 62° series eyepieces parfocal?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe manufacturer describes them as a \u003cstrong\u003e\"near parfocal\" design\u003c\/strong\u003e. This means that when you switch between different eyepieces in the 62° series, you should only need to make a very small adjustment to the focuser to regain a sharp image, which is convenient for quick comparisons between different magnifications.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a flat-field design important in the Explore Scientific 14mm eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA flat-field design corrects for optical aberrations that can make stars near the edge of the view appear stretched or out of focus. This ensures that stars remain sharp, pinpoint objects across the entire 62° field of view, which is especially important when observing star clusters or wide star fields.\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\u003e14mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e62°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003eNot Specified\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptical Design\u003c\/td\u003e\n\u003ctd\u003eMulti-Element, Flat-Field\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eWaterproof, Argon-Purged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e812257018628\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\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003e14mm 62° Waterproof Eyepiece\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003eNo manual or software is available for this product.\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Limited USA Lifetime Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967199146269,"sku":"ES-EPWP6214LE-01","price":97.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-62-deg-14mm-Waterproof-Eyepiece-EPWP6214LE-01-1__65551.1594240340.1280.1280.jpg?v=1684338712"},{"product_id":"explore-scientific-62-20mm-waterproof-eyepiece-1-25","title":"Explore Scientific 62° 20mm Waterproof Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e1.25\" Barrel Format\u003c\/li\u003e\n\u003cli\u003eWaterproof \u0026amp; Argon-Purged\u003c\/li\u003e\n\u003cli\u003eFlat-Field Optical Design\u003c\/li\u003e\n\u003cli\u003eMulti-Coated Optics\u003c\/li\u003e\n\u003cli\u003eNear-Parfocal with 62° Series\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\u003eDownloads\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\u003eExplore Scientific 62° 20mm Waterproof Eyepiece - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific 20mm 62° Waterproof Eyepiece is an argon-purged, flat-field ocular designed for high-contrast views of faint deep-sky objects. Its multi-element optical system delivers sharp, wide-field images, while its sealed construction ensures reliability in challenging observing conditions, making it a practical upgrade for any 1.25\" focuser.\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\u003eArgon-Purged Waterproofing for All-Weather Reliability\u003c\/h3\u003e\n\u003cp\u003eThis eyepiece is fully sealed and purged with inert argon gas. This process prevents internal fogging during nights with heavy dew and stops dust or fungus from contaminating the internal lens surfaces, ensuring your views remain clear and high-contrast for the life of the eyepiece.\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\u003eFlat-Field Optics for High-Contrast, Edge-to-Edge Views\u003c\/h3\u003e\n\u003cp\u003eThe multi-element, flat-field optical design corrects for field curvature, keeping stars sharp across the entire field of view. This edge-to-edge sharpness combines with excellent contrast to make faint objects easier to detect, especially when using averted vision to place a target on the more light-sensitive part of your retina.\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\u003eNear-Parfocal Design for Seamless Magnification Changes\u003c\/h3\u003e\n\u003cp\u003eEngineered to be near-parfocal with other eyepieces in the Explore Scientific 62° series, this ocular minimizes the amount of refocusing needed when you switch magnifications. This convenience allows you to spend more time observing and less time adjusting focus, streamlining your journey from a low-power finder view to a high-power detail study.\u003c\/p\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\"\u003eHow does the waterproof design of the Explore Scientific 20mm eyepiece benefit observing in humid conditions?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe eyepiece is \u003cstrong\u003esealed and argon-purged\u003c\/strong\u003e, which prevents moisture from getting inside. This completely stops internal fogging on humid nights, a common problem with unsealed eyepieces, ensuring your view stays clear even when dew is forming on your telescope.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does a 'flat-field' design mean for viewing star clusters like the Pleiades (M45) with the Explore Scientific eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA \u003cstrong\u003eflat-field design\u003c\/strong\u003e corrects optical errors that can make stars near the edge of the view appear stretched or out of focus. When viewing a wide object like the Pleiades (M45), this means all the stars across the cluster will appear as sharp, distinct points, providing a more immersive and detailed image from edge to edge.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Explore Scientific 20mm eyepiece suitable for observing faint galaxies in a Dobsonian telescope?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent choice. The eyepiece's \u003cstrong\u003ehigh-contrast optics\u003c\/strong\u003e create a darker sky background, making it easier to see faint, diffuse objects like the Whirlpool Galaxy (M51). The description also highlights its suitability for \u003cstrong\u003eaverted vision\u003c\/strong\u003e, a key technique for detecting subtle details in faint galaxies.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the advantage of the 'near-parfocal' feature on this Explore Scientific eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eBeing \u003cstrong\u003enear-parfocal\u003c\/strong\u003e means it requires very little, if any, refocusing when you swap it with other eyepieces in the same series. This is a significant convenience, especially when tracking objects manually, as it lets you change magnification quickly without losing focus on your target.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is good contrast important in an eyepiece like this Explore Scientific model?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eHigh contrast is crucial for separating faint objects from the background sky. The advanced multi-coatings on this eyepiece maximize light transmission and suppress internal reflections, resulting in a darker background that makes faint nebulosity in objects like the Orion Nebula (M42) or the outer arms of galaxies stand out more clearly.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill this 1.25\" Explore Scientific eyepiece work with my telescope's filter threads?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The 1.25\" barrel is threaded to accept standard 1.25\" astronomy filters, such as light pollution, nebula, or color filters. This allows you to enhance your views of specific celestial objects by threading a filter directly onto the bottom of the eyepiece.\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\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e812257018642\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\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eExplore Scientific 62° 20mm Waterproof Eyepiece - 1.25\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967199277341,"sku":"ES-EPWP6220LE-01","price":97.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-62-deg-20mm-Waterproof-Eyepiece-EPWP6220LE-01-1__99844.1594240341.1280.1280.jpg?v=1684338716"},{"product_id":"explore-scientific-62-5-5mm-waterproof-eyepiece-1-25","title":"Explore Scientific 62° 5.5mm Waterproof Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e5.5mm Focal Length\u003c\/li\u003e\n\u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e1.25\" Diameter Barrel\u003c\/li\u003e\n\u003cli\u003eWaterproof \u0026amp; Argon-Purged\u003c\/li\u003e\n\u003cli\u003eFlat-Field Multi-Element Design\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\u003eDownloads\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\u003eExplore Scientific 62° 5.5mm Waterproof Eyepiece - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific 62° 5.5mm Waterproof Eyepiece delivers high-magnification views for planetary and double-star observation within an immersive 62° apparent field. Its 5.5mm focal length provides the power needed to resolve fine details on Jupiter's cloud bands or Saturn's rings, all housed in a rugged, argon-purged 1.25\" barrel that prevents internal fogging.\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\u003eA Flat-Field 62° View for High-Contrast Observing\u003c\/h3\u003e\n\u003cp\u003eWith a 62° apparent field, this eyepiece offers a noticeably wider and more comfortable window onto the universe than standard Plössls. The flat-field, multi-element optical design ensures sharp focus from the center to the edge of the view, a critical feature when tracking objects across the field at high power. The excellent contrast makes it easier to employ averted vision to detect faint planetary moons or subtle details in brighter nebulae.\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\u003eArgon-Purged Waterproofing in a 1.25\" Barrel\u003c\/h3\u003e\n\u003cp\u003eBuilt to withstand challenging field conditions, this eyepiece is fully waterproof and purged with inert argon gas. This process seals the internal optics, preventing moisture from fogging the lens elements during nights with heavy dew and protecting the coatings from fungus and dust over the long term. The 62° series is also designed to be near-parfocal, minimizing the amount of refocusing needed when you switch between different focal lengths in the same lineup.\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\u003eExplore Scientific 62° 5.5mm vs. a Standard 5.5mm Plössl\u003c\/h3\u003e\n\u003cp\u003eWhile a standard Plössl eyepiece is a reliable workhorse, the Explore Scientific 62° 5.5mm represents a significant step up in several key areas.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eField of View:\u003c\/strong\u003e The Plössl design is typically limited to a 50-52° apparent field, while the ES 62° provides a wider, more immersive view that feels less like looking through a tunnel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEdge Correction:\u003c\/strong\u003e The ES 62° uses a more complex, flat-field optical design to correct for aberrations at the edge of the field, especially noticeable in faster telescopes where a Plössl might show distorted stars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e The waterproof and argon-purged construction of the ES 62° is a professional feature not found in standard eyepieces, ensuring reliability and longevity in all weather conditions.\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 Explore Scientific 62° 5.5mm eyepiece best for?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eExplore Scientific 62° 5.5mm\u003c\/strong\u003e eyepiece excels at high-magnification observations. It is ideal for resolving fine detail on planets like Jupiter and Saturn, splitting tight double stars, and examining the cores of bright globular clusters like M13.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the 5.5mm Explore Scientific eyepiece perform on Jupiter with an 8\" f\/10 SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn an 8\" (203mm) f\/10 Schmidt-Cassegrain Telescope with a 2032mm focal length, the \u003cstrong\u003eExplore Scientific 5.5mm eyepiece\u003c\/strong\u003e will yield approximately 369x magnification. This is a very high power, perfect for nights of steady seeing to observe details like the Great Red Spot, shadow transits of the Galilean moons, and intricate cloud bands.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Explore Scientific 62° 5.5mm a good choice for splitting the Double Double (Epsilon Lyrae)?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent choice. Splitting the tight components of Epsilon Lyrae requires high magnification and sharp optics. The \u003cstrong\u003e5.5mm focal length\u003c\/strong\u003e provides ample power in most telescopes, and the eyepiece's high-contrast, flat-field view will help you cleanly separate the four stars.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"Argon-Purged Waterproof\" mean for the Explore Scientific 5.5mm eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis means the eyepiece barrel is sealed and filled with an inert gas (argon) to prevent internal fogging on humid nights. It also protects the internal lens surfaces and coatings from dust, moisture, and fungus, ensuring a long operational life.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWill I need to refocus when switching from this 5.5mm eyepiece to others in the Explore Scientific 62° series?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Explore Scientific 62° series eyepieces are designed to be \u003cstrong\u003enear-parfocal\u003c\/strong\u003e. This means you should only need to make a very small adjustment to the focuser when changing between different focal lengths in the series, saving you time and effort during your observing session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use filters with the Explore Scientific 62° 5.5mm eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes. The \u003cstrong\u003e1.25\" barrel\u003c\/strong\u003e of the eyepiece is threaded to accept standard 1.25\" astronomy filters, such as planetary color filters or neutral density moon filters.\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\u003e5.5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e62°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaterproof\u003c\/td\u003e\n\u003ctd\u003eYes, Argon-Purged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e812257018680\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\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eExplore Scientific 62° 5.5mm Eyepiece\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eDust Caps\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 2\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967199310109,"sku":"ES-EPWP6255LE-01","price":97.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-62-deg-5-5mm-Waterproof-Eyepiece-EPWP6255LE-01-1__41434.1594240341.1280.1280.jpg?v=1684338720"},{"product_id":"explore-scientific-62-26mm-waterproof-eyepiece-1-25","title":"Explore Scientific 62° 26mm Waterproof Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e26mm Focal Length\u003c\/li\u003e\n\u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e1.25\" Barrel Diameter\u003c\/li\u003e\n\u003cli\u003eWaterproof, Argon-Purged Construction\u003c\/li\u003e\n\u003cli\u003eFlat-Field Multi-Element Optical Design\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\u003eExplore Scientific 62° 26mm Waterproof Eyepiece - 1.25\"\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific 62° 26mm Waterproof Eyepiece delivers a wide 62° apparent field of view in a standard 1.25\" barrel, providing a significant upgrade over basic eyepieces. Its 26mm focal length produces low-to-medium magnification, perfect for scanning the Milky Way's star fields and framing large targets like the Orion Nebula (M42) or the Andromeda Galaxy (M31).\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\u003eA 62° Flat-Field Window on the Universe\u003c\/h3\u003e\n\u003cp\u003eThis eyepiece's multi-element, flat-field design presents a 62° apparent field that feels noticeably more immersive than a standard 50° ocular. The wider view keeps objects in the field longer in non-driven scopes and provides a \"spacewalk\" context around your primary target. The high-contrast optics make it easier to use averted vision to detect faint details, letting you place an object slightly off-center to activate the more light-sensitive parts of your eye.\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\u003eArgon-Purged Waterproofing for Dewy Nights\u003c\/h3\u003e\n\u003cp\u003eUnlike standard eyepieces, the Explore Scientific 62° 26mm is fully sealed and purged with inert argon gas. This process prevents internal fogging when moving from a warm house to cool outdoor air and stops moisture from penetrating the housing on nights with heavy dew. The sealed optics protect the delicate multi-coatings from fungus and decay, ensuring the eyepiece maintains its optical integrity for years of use in any weather condition.\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\u003eES 62° 26mm vs. a Standard 25mm Plössl: A Wider Perspective\u003c\/h3\u003e\n\u003cp\u003eWhile a classic 25mm Plössl eyepiece is a reliable optic, its typical 52° field of view can feel restrictive. The Explore Scientific 62° 26mm eyepiece offers a tangible upgrade in visual immersion at a similar focal length.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePlössl Advantage:\u003c\/strong\u003e A simple four-element Plössl design often has slightly higher on-axis light transmission, which can be beneficial on the brightest point-like targets.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExplore Scientific 62° Advantage:\u003c\/strong\u003e The 10° increase in apparent field makes scanning for objects easier and provides a more engaging, wide-screen view. The flat-field correction also ensures stars remain sharp closer to the edge of the field than in many basic oculars.\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 main benefit of the 62° field on the Explore Scientific 26mm eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe \u003cstrong\u003e62° apparent field of view\u003c\/strong\u003e provides a wider, more immersive window into space compared to the standard 50-52° field of typical Plössl eyepieces. This makes it easier to locate objects, frame large nebulae and star clusters, and enjoy a more engaging \"spacewalk\" feeling when observing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the waterproofing on the ES 62° 26mm eyepiece actually work?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe eyepiece is completely sealed with O-rings and filled with \u003cstrong\u003einert argon gas\u003c\/strong\u003e. This process, known as gas purging, displaces all internal moisture-laden air. As a result, the internal lenses cannot fog up due to temperature changes, and the multi-coatings are protected from moisture, fungus, and dust for the life of the eyepiece.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Explore Scientific 62° 26mm a good eyepiece for my 8\" f\/10 SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent choice. In a typical 8\" f\/10 SCT with a 2032mm focal length, the 26mm eyepiece will provide about 78x magnification. This is a perfect low-power magnification for locating objects, observing large open clusters like the Pleiades (M45), and viewing the full disk of the Moon.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the Andromeda Galaxy (M31) look through the ES 62° 26mm eyepiece in a 10\" Dobsonian?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIn a typical 10\" f\/4.7 Dobsonian (around 1200mm focal length), this eyepiece yields 46x magnification. This low power and the wide 62° field of view are ideal for framing the entirety of the Andromeda Galaxy (M31). You will be able to see the bright core and the extended galactic disk, along with its companion galaxies M32 and M110, all within a single field of view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"near parfocal\" mean for the Explore Scientific 62° series?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003e\"Near parfocal\"\u003c\/strong\u003e means that when you switch between different eyepieces in the same Explore Scientific 62° series, you will need to make only a very small adjustment to the focuser, if any at all. This saves significant time and effort when you want to change magnification quickly during an observing session.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is the ES 62° 26mm eyepiece good for \"averted vision\"?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe eyepiece's high-contrast, flat-field optics produce a dark sky background and sharp stars across the field. This clarity makes it easier to practice \u003cstrong\u003eaverted vision\u003c\/strong\u003e—looking slightly to the side of a faint object. This technique puts the object's light onto the more sensitive peripheral part of your retina, often making faint galaxies or nebular details \"pop\" into view against the dark background.\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\u003e26mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e62°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBarrel Size\u003c\/td\u003e\n\u003ctd\u003e1.25\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWaterproof\u003c\/td\u003e\n\u003ctd\u003eYes, Argon-Purged\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e812257018659\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\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967199375645,"sku":"ES-EPWP6226LE-01","price":111.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-62-deg-26mm-Waterproof-Eyepiece-EPWP6226LE-01-1__08180.1594240342.1280.1280.jpg?v=1684338808"},{"product_id":"explore-scientific-62-32mm-waterproof-eyepiece-2","title":"Explore Scientific 62° 32mm Waterproof Eyepiece -2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e32mm Focal Length\u003c\/li\u003e\n\u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e2\" Barrel Diameter\u003c\/li\u003e\n\u003cli\u003eWaterproof \u0026amp; Argon-Purged Construction\u003c\/li\u003e\n\u003cli\u003eFlat-Field Multi-Element Optics\u003c\/li\u003e\n\u003cli\u003eNear Parfocal Design\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\u003eDownloads\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\u003eExplore Scientific 62° 32mm Waterproof Eyepiece - 2\"\u003c\/h2\u003e\n\u003cp\u003eThe Explore Scientific 62° 32mm Waterproof Eyepiece delivers an immersive 62° apparent field of view in a versatile 2-inch barrel format. Its 32mm focal length provides low-power, wide true fields of view, making it an ideal ocular for framing large deep-sky objects and scanning the Milky Way's star fields.\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\u003eA Flat 62° Apparent Field of View\u003c\/h3\u003e\n\u003cp\u003eStepping up from the 50-52° field of a standard Plössl, the 62° apparent field of this eyepiece provides a noticeably more immersive window on the universe. The multi-element, flat-field optical design ensures stars remain sharp across the view, not just in the center. This high-contrast optical system makes it easier to detect faint details in nebulae and galaxies, especially when using averted vision to place targets on the more light-sensitive parts of your retina.\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\u003eArgon-Purged Waterproof Construction\u003c\/h3\u003e\n\u003cp\u003eThis eyepiece is built to withstand challenging field conditions. The optical housing is sealed and purged with inert argon gas, which prevents the formation of internal fogging when moving from a warm house to a cold observing site. This waterproofing also protects the internal lens elements and coatings from moisture, fungus, and dust over the lifetime of the eyepiece, ensuring it delivers consistent views year after year.\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 32mm Focal Length: Low Power for Faint Deep-Sky Objects\u003c\/h3\u003e\n\u003cp\u003eIn a 2-inch barrel, a 32mm focal length excels at providing low magnification and a wide true field of view, turning your telescope into a rich-field instrument. This is essential for locating objects and for observing large-scale structures like the Andromeda Galaxy (M31) or the North American Nebula (NGC 7000) in a single frame. The near-parfocal design of the 62° series also minimizes the amount of refocusing needed when switching between eyepieces in the same line.\u003c\/p\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 main benefit of the Explore Scientific 32mm eyepiece being waterproof?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe primary benefit is durability and reliability in the field. The \u003cstrong\u003eargon-purged and sealed barrel\u003c\/strong\u003e prevents internal fogging during temperature changes, which is a common issue on dewy nights. It also protects the internal coatings from long-term damage due to moisture, ensuring the eyepiece maintains its optical clarity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the 62° field of view in the Explore Scientific 32mm eyepiece compare to a standard Plössl?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA standard Plössl eyepiece typically has a 50-52° apparent field of view. The \u003cstrong\u003e62° field\u003c\/strong\u003e of this Explore Scientific eyepiece offers a wider, more immersive experience without the significant cost or complexity of ultra-wide 82° or 100° designs. The view feels less like looking through a narrow tube and more like a \"spacewalk\" view.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Explore Scientific 62° 32mm eyepiece a good choice for my 8-inch f\/10 SCT?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYes, it's an excellent choice. On a typical 8\" f\/10 SCT with a 2032mm focal length, this 32mm eyepiece will provide 63.5x magnification. This low power is ideal for locating objects, scanning star fields, and viewing large targets like open clusters and emission nebulae that are too big to fit in the field of view at higher powers.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow will the Andromeda Galaxy (M31) look through the Explore Scientific 62° 32mm eyepiece?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThis eyepiece is perfectly suited for framing the Andromeda Galaxy (M31). Its low power and wide true field of view will allow you to see the galaxy's bright core and a significant portion of its extended spiral arms in a single view, along with its satellite galaxies M32 and M110. The flat field ensures stars across the view remain pinpoints, providing a rich backdrop for the galaxy.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does 'near parfocal' mean for the Explore Scientific 62° eyepiece series?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003e\u003cstrong\u003eNear parfocal\u003c\/strong\u003e means that you will need to make only minimal adjustments to your telescope's focuser when you switch between different eyepieces within the Explore Scientific 62° series. This is a convenient feature that saves time and makes comparing views at different magnifications much easier.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhy is a 2-inch barrel important for a 32mm eyepiece like this one?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eA 1.25-inch barrel has a physical limit on the size of the field stop, which restricts the true field of view. To achieve a wide 62° apparent field at a long 32mm focal length without vignetting (darkening at the edges), a \u003cstrong\u003e2-inch barrel\u003c\/strong\u003e is necessary to accommodate a larger internal field stop, allowing for a wider true field on the sky.\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\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e812257018666\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\u003cli class=\"DAV-grid-item\"\u003e\n\u003cdiv\u003e\n\u003cp class=\"DAV-item-title\"\u003eExplore Scientific 62° 32mm Waterproof Eyepiece - 2\"\u003c\/p\u003e\n\u003cp class=\"DAV-item-subtitle\"\u003e× 1\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cul class=\"DAV-grid\"\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/davidastro.com\/pages\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967199408413,"sku":"ES-EPWP6232LE-01","price":167.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-62-deg-32mm-Waterproof-Eyepiece-EPWP6232LE-01-1__91541.1594240342.1280.1280.jpg?v=1684338812"},{"product_id":"explore-scientific-62-40mm-waterproof-eyepiece-2","title":"Explore Scientific 62° 40mm Waterproof Eyepiece - 2\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003e40mm Focal Length\u003c\/li\u003e\n\u003cli\u003e62° Apparent Field of View\u003c\/li\u003e\n\u003cli\u003e2\" Diameter Barrel\u003c\/li\u003e\n\u003cli\u003eWaterproof \u0026amp; Argon-Purged Construction\u003c\/li\u003e\n\u003cli\u003eFlat-Field Multi-Element Optics\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\u003eDownloads\u003c\/li\u003e\n\u003cli\u003eWarranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\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\u003eExplore Scientific 62° 40mm Waterproof Eyepiece - 2\"\u003c\/h2\u003e\n      \u003cp\u003eThe Explore Scientific 62° 40mm eyepiece delivers the lowest practical magnification for most telescopes using its 2\" barrel, producing bright, expansive views of the night sky. Its flat-field, multi-element optical design presents a 62° apparent field of view that remains sharp to the edge. This 40mm eyepiece is fully waterproof and argon-purged, ensuring its internal optics are protected from moisture and dust for long-term reliability.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eLow-Power Immersion: A 62° Flat-Field View at 40mm\u003c\/h3\u003e\n      \u003cp\u003eWith a 40mm focal length, this eyepiece is designed to be your primary tool for locating objects and framing large-scale celestial targets. The 62° apparent field of view offers a noticeably wider and more immersive window than standard Plössl designs, creating a \"spacewalk\" effect as you sweep through star fields. Its flat-field optics correct for distortions at the edge, keeping stars sharp across the entire view.\u003c\/p\u003e\n      \u003cp\u003eThis design produces excellent contrast, making it easier to use averted vision to detect faint details in nebulae or the outer arms of galaxies. The near-parfocal design within the 62° series also means you'll spend less time refocusing when switching between eyepieces.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n    \n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eAll-Weather Observing: The Argon-Purged, Waterproof Design\u003c\/h3\u003e\n      \u003cp\u003eUnlike standard eyepieces, the Explore Scientific 62° 40mm is built to withstand challenging environmental conditions. The optical housing is sealed and purged with inert argon gas, which is more effective than nitrogen at preventing internal fogging over a wider temperature range. This means you can move the eyepiece from a warm room into the cold night air without losing your view to condensation.\u003c\/p\u003e\n      \u003cp\u003eThis sealed construction also provides a permanent barrier against dust, moisture, and fungus, protecting the lens coatings and ensuring the eyepiece delivers high-contrast views for years. It's a robust, low-maintenance design for observers who don't let dew or humidity end their night.\u003c\/p\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n  \u003cdiv class=\"DAV-bg-light\"\u003e\n    \u003cdiv class=\"DAV-section\"\u003e\n      \u003ch3\u003eExplore Scientific 62° 40mm vs. a Standard 2\" Plössl\u003c\/h3\u003e\n      \u003cp\u003eWhile a standard 2\" 40mm Plössl eyepiece may be a simpler and less expensive option, the Explore Scientific 62° model offers distinct optical and mechanical advantages.\u003c\/p\u003e\n      \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eWider Apparent Field:\u003c\/strong\u003e The primary difference is the view itself. The ES 62° eyepiece provides a 62° apparent field, which is significantly more expansive than the typical 50° field of a Plössl, making observations more engaging.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eEdge-of-Field Correction:\u003c\/strong\u003e The flat-field design of the ES 62° delivers sharper star points at the edge of the field compared to a standard Plössl, which often exhibits some softness away from the center, especially in faster telescopes.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e The waterproof, argon-purged construction of the Explore Scientific eyepiece provides a level of environmental protection and longevity that is absent in non-sealed Plössl designs.\u003c\/li\u003e\n      \u003c\/ul\u003e\n    \u003c\/div\u003e\n  \u003c\/div\u003e\n\n\u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of the Explore Scientific 62° 40mm eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIts primary benefit is providing a very wide \u003cstrong\u003etrue field of view\u003c\/strong\u003e with low magnification. This makes the Explore Scientific 62° 40mm an excellent \"finder\" eyepiece for locating celestial objects and for observing large deep-sky targets like the Andromeda Galaxy (M31) or the North American Nebula (NGC 7000) in their entirety.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eHow would the ES 62° 40mm perform on the Andromeda Galaxy (M31) in an 8\" f\/10 SCT?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eIt would perform exceptionally well. In a typical 8\" f\/10 SCT with a 2032mm focal length, the 40mm eyepiece yields a magnification of 51x and a true field of view of about 1.2 degrees. This is wide enough to comfortably frame the core and a significant portion of the spiral arms of the Andromeda Galaxy (M31), providing a bright, detailed, and complete view of our galactic neighbor.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"argon-purged waterproof\" mean for the ES 62° 40mm eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eThis means the eyepiece is internally sealed and filled with inert argon gas. This process offers two key advantages:\n    \u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003eIt \u003cstrong\u003eprevents internal fogging\u003c\/strong\u003e when moving the eyepiece between different temperatures, such as from a warm house to a cold observing site.\u003c\/li\u003e\n    \u003cli\u003eIt \u003cstrong\u003eprotects the internal optics\u003c\/strong\u003e from dust, moisture, and fungus, ensuring the eyepiece maintains high contrast and clarity over its lifetime.\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eIs the ES 62° 40mm eyepiece good for \"fast\" telescopes like f\/5 Newtonians?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eYes, its \u003cstrong\u003eflat-field design\u003c\/strong\u003e makes it a good choice for faster telescopes. It will maintain sharper stars towards the edge of the 62° field of view compared to simpler designs like a Plössl. However, be aware that in an f\/5 telescope, this 40mm eyepiece will produce a very large 8mm exit pupil, which may be larger than your eye's pupil, causing some light loss and potentially making the secondary mirror shadow visible.\u003c\/p\u003e\n  \u003c\/div\u003e\n    \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eI have a 12\" Dobsonian. Is the ES 62° 40mm a good finder eyepiece?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003eAbsolutely. For a 12\" (305mm) f\/5 Dobsonian, the 40mm eyepiece provides 38x magnification and a wide true field of view, making it an ideal first-step eyepiece for star-hopping and locating objects. The bright, expansive view helps you orient yourself in the sky before switching to higher-power eyepieces for detailed observation.\u003c\/p\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion\"\u003e\n    \u003ch3 class=\"DAV-accordion-Q\"\u003eWhat does \"near parfocal\" mean for the ES 62° eyepiece series?\u003c\/h3\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"DAV-accordion-A\"\u003e\n    \u003cp\u003e\u003cstrong\u003eNear parfocal\u003c\/strong\u003e means that you will only need to make minimal, if any, adjustments to your telescope's focuser when you switch between different eyepieces within the Explore Scientific 62° series. This is a convenient feature that saves time and makes comparing views at different magnifications much easier.\u003c\/p\u003e\n  \u003c\/div\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003ctable class=\"DAV-specifications\"\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eGTIN\u003c\/td\u003e\n\u003ctd\u003e812257018673\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/li\u003e\n\n\u003cli\u003e\n  \u003cul class=\"DAV-grid\"\u003e\n  \u003c\/ul\u003e\n\u003c\/li\u003e\n\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\/explore-scientific-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eExplore Scientific Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":44967199539485,"sku":"ES-EPWP6240LE-01","price":363.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/products\/Explore-Scientific-62-deg-40mm-Waterproof-Eyepiece-EPWP6240LE-01-1__41903.1594240344.1280.1280.jpg?v=1684338821"}],"url":"https:\/\/davidastro.com\/en-us\/collections\/explore-scientific-62-series-eyepieces.oembed","provider":"David Astro","version":"1.0","type":"link"}