{"title":"Eyepiece","description":"\u003cp\u003eBrowse our Eyepiece collection. Free Shipping.\u003c\/p\u003e","products":[{"product_id":"explore-scientific-100-series-55mm-waterproof-eyepiece-argon-purged","title":"Explore Scientific 100° Series 5.5mm Waterproof Eyepiece Argon-Purged","description":"\u003cul\u003e\n\u003cli\u003eHuge apparent field of view not only gave the observer a panoramic visual experience, but they relax the eye so the observer could pay attention to subtle details for extended periods.\u003c\/li\u003e\n\u003cli\u003eEach 100° Series Argon-Purged Waterproof eyepiece is internally sealed and purged with inert, dry argon gas.\u003c\/li\u003e\n\u003cli\u003eThis also maximizes the life of the internal coatings.\u003c\/li\u003e\n\u003cli\u003eEvery 100° eyepiece is tested by submerging them down to 1 meter of water for 30 minutes.\u003c\/li\u003e\n\u003cli\u003eAll 100° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eExplore Ultra-Wide Eyepieces - Comfort, Quality, Value. The Explore Scientific 100° Series eyepieces are hyper-wide class oculars that can transform your visual astronomy experience. You may be startled at the amazingly wide expanse of inky black sky you behold the first time you bring your eye to a 100° Series eyepiece, and after awhile, you may even forget that you have an eyepiece between you and the universe! With an apparent field of view that is close to the maximum for hyper-wide eyepiece design, objects are not only easier to locate, but for non-driven telescopes the object will stay in the field of view for a very long time before any adjustments need to be made.\u003c\/p\u003e\n\u003cp\u003eAnother great benefit of hyper-wide eyepieces is the ease with which you can gaze, not directly at an object, but slightly to either side. This skill, called using averted vision, is especially helpful when observing faint objects, because using averted vision puts the image on a part of your eye that is more sensitive to light, allowing you to see fainter images.\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFocal Length:\u003c\/b\u003e 5.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBarrel Diameter:\u003c\/b\u003e 2\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength:\u003c\/b\u003e 150mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWidth:\u003c\/b\u003e 56mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eAFOV:\u003c\/b\u003e 100 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEye Relief:\u003c\/b\u003e 10.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eField Stop Diameter:\u003c\/b\u003e 9.6mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCoatings:\u003c\/b\u003e All lens-to-air surfaces are fully multi-coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEyecups:\u003c\/b\u003e Soft rubber folding style; Replaceable\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWeight:\u003c\/b\u003e 21.6 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":45451069161495,"sku":"vmu1787927816818","price":188.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/8931\/3815\/files\/explore-scientific-100-series-55mm-waterproof-eyepiece-argon-purged_1.jpg?v=1787927822"},{"product_id":"tele-vue-55mm-plossl-2-eyepiece","title":"Tele Vue 55mm Plossl 2\" Eyepiece","description":"\u003cp\u003eSince Tele Vue introduced their Plössls in 1980, they have won praise and patents, including a patent in Japan. Tele Vue Plössls, designed by Al Nagler, have been a recognized benchmark of performance and value in the class of 50 degree apparent field of view eyepieces. While the Plössls may be Tele Vue's least expensive eyepiece line, they still enjoy the same care and attention to detail as the most expensive. While it's easy for other manufacturers to vie for the lowest price, Tele Vue continues to believe that quality, performance and consistency will ultimately reward you with the most value for your dollar. \u003c\/p\u003e\u003cp\u003eDiffraction limited \"on-axis\" performance is a given. Using more expensive high-index glasses to reduce astigmatism and lateral color at the field's edge, Tele Vue Plössls deliver sharper images than any other brand of 4 or 5 element \"Plossl\" or Orthoscopic designs. The faster the focal ratio of your telescope, the greater your visual reward for using Tele Vue eyepieces. Tele Vue Plössls feature full multicoatings for greatest light transmission and contrast. Blackened lens edges and internal anti-reflection threads tweak the last bit of contrast for maximum image detail. The sharper field focuses faint star light into perceptible points and allows those with undriven mounts to gaze longer before repositioning the image.\u003c\/p\u003e\u003cp\u003eThe 55mm focal length has the largest true field possible for 2\" eyepiece holders - 3 times the true field area of any 1-1\/4\" eyepiece. The focal plane is placed at the end of the barrel to minimize vignetting. Performance with Schmidt-Cassegrains is remarkable since it avoids the image degradation and severe vignetting which occurs when using telecompressors. Long eye-relief and unique adjustable eyeguard for eyeglass wearers. \u003c\/p\u003e","brand":"Tele Vue","offers":[{"title":"Default Title","offer_id":45451069194263,"sku":"fsa1787927816943","price":203.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/8931\/3815\/files\/tele-vue-55mm-plossl-2-eyepiece_1.jpg?v=1787927822"},{"product_id":"explore-scientific-68-series-20mm-waterproof-eyepiece","title":"Explore Scientific 68° Series 20mm Waterproof Eyepiece","description":"\u003cp\u003eUsing advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coatings, Explore Scientific 68° Series Argon-Purged Waterproof extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics. The visual effect of these eyepieces with their long eye-relief and their 68° apparent field is truly a full-immersion experience. The 68° Series eyepieces are parfocal (meaning they focus at near the same point regardless of the focal length you select) and come with a removable and foldable soft silicone rubber eyecup for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope.\u003c\/p\u003e\n\u003cp\u003eProtection from the Outdoors - By making the eyepiece body Argon-purged, the waterproof eyepiece internal elements will remain as pristine as the day they were assembled.\u003c\/p\u003e\n\u003cp\u003eArgon atoms are larger than that of Nitrogen and therefore they are less likely to leak or diffuse their way through the seals over the life of the eyepiece. The atomic radius of Argon is larger than Nitrogen by 0.13 angstroms and has a larger atomic volume by 11.2 cubic centimeters\/molecule. Argon also has superior inertness vs Nitrogen (i.e. forming few or no chemical compounds with other elements) that prevents adverse reactions with eyepiece components and therefore extends the longevity of the internal components, and also prevents chemical reactions with other elemental contaminants that may be introduced through a weakened seal. And, finally because Argon is less conductive of heat than Nitrogen, Argon cools slower thereby buffering the effects of rapid temperature changes of the optics.\u003c\/p\u003e\n\u003cp\u003eThe sealed, dry environment is impervious to internal fogging and contaminants such as fungus growing in between the lens elements. Our waterproof eyepiece is easier to clean, and there is no risk of cleaning solution migrating from the top of the lens and seeping around edges to be trapped in between elements. To insure a perfect seal we test every eyepiece in one meter of water for 30 minutes.\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c!----\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":45451069227031,"sku":"oax1787927817278","price":72.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/8931\/3815\/files\/explore-scientific-68-series-20mm-waterproof-eyepiece_1.jpg?v=1787927823"},{"product_id":"luminos-23mm-eyepiece-2","title":"Luminos 23mm Eyepiece - 2\"","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnjoy wide 82° views with Celestron Luminos Eyepieces\u003c\/li\u003e\n\u003cli\u003eRetractable eyecup pops up when you need it, drops down when you don’t\u003c\/li\u003e\n\u003cli\u003eSturdy anodized aluminum barrels are threaded for filters\u003c\/li\u003e\n\u003cli\u003eA rubber grip keeps the eyepiece securely in your hands, even when it’s cold or you have gloves on\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Luminos series eyepieces offer a wide 82º field of view in both high power and low power models, allowing you to make the most of your telescope, whether you own a short, fast refractor or a Celestron EdgeHD telescope. The optical set consists of six or seven elements (depending on the model) and is fully multi-coated for crisp, sharp views. All six Luminos eyepieces are parfocal, which means you can switch out eyepieces during observing sessions with little or no additional focusing required.\u003c\/p\u003e\n\u003cp\u003eThe Luminos eyepiece body is made of polished and anodized aluminum. A rubber grip runs around the equator of the eyepiece, giving you a secure grip and an easy method for raising and lowering the retractable eyecup. Simply twist the rubber grip to adjust the height of the eyecup. The insert barrel is threaded to accept filters.\u003c\/p\u003e\n\u003c!----\u003e","brand":"Celestron","offers":[{"title":"Default Title","offer_id":45451069325335,"sku":"opo1787927817912","price":179.96,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/8931\/3815\/files\/luminos-23mm-eyepiece---2_1.jpg?v=1787927824"},{"product_id":"explore-scientific-82-series-18mm-waterproof-eyepiece-argon-purged","title":"Explore Scientific 82° Series 18mm Waterproof Eyepiece Argon-Purged","description":"\u003cp\u003eThe 18mm 82° Series Waterproof Argon-Purged Eyepiece is a popular focal length in the upper-medium power magnification class providing both super-wide apparent field and generous eye relief. It is perfect for any application where more power is desired including observing globular star clusters, planetary nebulae, the bright cloud structure near the nucleus of comets, initial observations of planets, and (with the proper safe filtration on your telescope), observations of active regions of the sun. Use with Explore Scientific Focal Extenders for 2X, 3X, or 5X magnification increases while maintaining the eyepiece native apparent field and eye relief.\u003c\/p\u003e\n\u003cp\u003eUsing advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable enhanced multilayer deposition (EMD) coatings, Explore Scientific 82° Series super wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics. The visual effect of these eyepieces with their long eye-relief and their 82° apparent field is truly a full-immersion experience. Your eye is relaxed, allowing you to easily use the “averted vision” technique to study faint details across a huge field-of-view.\u003c\/p\u003e\n\u003cp\u003eEach eyepiece is meticulously assembled into precision machined metal lens barrels that maintain the perfect alignment of the optical train for years of rugged use in the field. To keep internal reflections to a minimum, all internal surfaces of the eyepiece barrel are flat black, as well as the edges of the lenses themselves to minimize the scattering of light within the lenses themselves.\u003c\/p\u003e\n\u003cp\u003eExplore Ultra-Wide Eyepieces - Comfort, Quality, Value. Explore Scientific 82° Series eyepieces, with their 82° apparent field of view, immerses you in a very comfortable ultra-wide field that naturally promotes relaxation at the eyepiece. When you relax your eyes and take in the scene presented before you, it is much easier to observe for longer periods of time, and details begin to materialize that may not have become apparent to you at first glance. Another great benefit of ultra-wide eyepieces is the ease with which you can gaze, not directly at an object, but slightly to either side. This skill, called using averted vision, is especially helpful when observing faint objects, because using averted vision puts the image on a part of your eye that is more sensitive to light, allowing you to see fainter images.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBarrel Diameter:\u003c\/b\u003e 2\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEye Relief:\u003c\/b\u003e 13mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLens Elements:\u003c\/b\u003e 6 in 4 Groups\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWeight:\u003c\/b\u003e 14 oz.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":45451070210071,"sku":"uel1787927834094","price":119.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/8931\/3815\/files\/explore-scientific-82-series-18mm-waterproof-eyepiece-argon-purged_1.jpg?v=1787927839"},{"product_id":"explore-scientific-82-series-24mm-waterproof-eyepiece-argon-purged","title":"Explore Scientific 82° Series 24mm Waterproof Eyepiece Argon-Purged","description":"\u003cp\u003eThe 24mm 82° Series Waterproof Argon-Purged Eyepiece is a popular focal length in the upper-medium power magnification class providing both super-wide apparent field and generous eye relief. It is perfect for any application where more power is desired including observing globular star clusters, planetary nebulae, the bright cloud structure near the nucleus of comets, initial observations of planets, and (with the proper safe filtration on your telescope), observations of active regions of the sun. Use with Explore Scientific Focal Extenders for 2X, 3X, or 5X magnification increases while maintaining the eyepiece native apparent field and eye relief.\u003c\/p\u003e\n\u003cp\u003eUsing advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable enhanced multilayer deposition (EMD) coatings, Explore Scientific 82° Series super wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics. The visual effect of these eyepieces with their long eye-relief and their 82° apparent field is truly a full-immersion experience. Your eye is relaxed, allowing you to easily use the “averted vision” technique to study faint details across a huge field-of-view.\u003c\/p\u003e\n\u003cp\u003eEach eyepiece is meticulously assembled into precision machined metal lens barrels that maintain the perfect alignment of the optical train for years of rugged use in the field. To keep internal reflections to a minimum, all internal surfaces of the eyepiece barrel are flat black, as well as the edges of the lenses themselves to minimize the scattering of light within the lenses themselves.\u003c\/p\u003e\n\u003cp\u003eExplore Ultra-Wide Eyepieces - Comfort, Quality, Value. Explore Scientific 82° Series eyepieces, with their 82° apparent field of view, immerses you in a very comfortable ultra-wide field that naturally promotes relaxation at the eyepiece. When you relax your eyes and take in the scene presented before you, it is much easier to observe for longer periods of time, and details begin to materialize that may not have become apparent to you at first glance. Another great benefit of ultra-wide eyepieces is the ease with which you can gaze, not directly at an object, but slightly to either side. This skill, called using averted vision, is especially helpful when observing faint objects, because using averted vision puts the image on a part of your eye that is more sensitive to light, allowing you to see fainter images.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eSpecifications\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eBarrel Size:\u003c\/b\u003e 2\"\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFocal Length\u003c\/strong\u003e: 24mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEye Relief:\u003c\/b\u003e 17.5mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eLength: \u003c\/b\u003e110mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWidth\u003c\/strong\u003e: 70mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eWeight: \u003c\/b\u003e24.8oz; 704g\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":45451070242839,"sku":"vvf1787927834028","price":172.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/8931\/3815\/files\/explore-scientific-82-series-24mm-waterproof-eyepiece-argon-purged_1.jpg?v=1787927840"},{"product_id":"explore-scientific-68-series-16mm-waterproof-eyepiece","title":"Explore Scientific 68° Series 16mm Waterproof Eyepiece","description":"\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"tab-pane\" id=\"tab-0\"\u003e\n\u003cdiv class=\"tabcontent\"\u003e\n\u003cp\u003eUsing advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coatings, Explore Scientific 68° Series Argon-Purged Waterproof extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics. The visual effect of these eyepieces with their long eye-relief and their 68° apparent field is truly a full-immersion experience. The 68° Series eyepieces are parfocal (meaning they focus at near the same point regardless of the focal length you select) and come with a removable and foldable soft silicone rubber eyecup for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope.\u003c\/p\u003e\n\u003cp\u003eProtection from the Outdoors - By making the eyepiece body Argon-purged, the waterproof eyepiece internal elements will remain as pristine as the day they were assembled.\u003c\/p\u003e\n\u003cp\u003eArgon atoms are larger than that of Nitrogen and therefore they are less likely to leak or diffuse their way through the seals over the life of the eyepiece. The atomic radius of Argon is larger than Nitrogen by 0.13 angstroms and has a larger atomic volume by 11.2 cubic centimeters\/molecule. Argon also has superior inertness vs Nitrogen (i.e. forming few or no chemical compounds with other elements) that prevents adverse reactions with eyepiece components and therefore extends the longevity of the internal components, and also prevents chemical reactions with other elemental contaminants that may be introduced through a weakened seal. And, finally because Argon is less conductive of heat than Nitrogen, Argon cools slower thereby buffering the effects of rapid temperature changes of the optics.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe sealed, dry environment is impervious to internal fogging and contaminants such as fungus growing in between the lens elements. Our waterproof eyepiece is easier to clean, and there is no risk of cleaning solution migrating from the top of the lens and seeping around edges to be trapped in between elements. To insure a perfect seal we test every eyepiece in one meter of water for 30 minutes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!----\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":45451070308375,"sku":"qin1787927834013","price":83.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/8931\/3815\/files\/explore-scientific-68-series-16mm-waterproof-eyepiece_1.jpg?v=1787927841"},{"product_id":"explore-scientific-68-series-34mm-waterproof-eyepiece","title":"Explore Scientific 68° Series 34mm Waterproof Eyepiece","description":"\u003cp\u003eUsing advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coatings, Explore Scientific 68° Series Argon-Purged Waterproof extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics. The visual effect of these eyepieces with their long eye-relief and their 68° apparent field is truly a full-immersion experience. The 68° Series eyepieces are parfocal (meaning they focus at near the same point regardless of the focal length you select) and come with a removable and foldable soft silicone rubber eyecup for the comfort of the observer, and as experienced astronomers know, eye comfort is critical when trying to observe at the visual limits of the telescope.\u003c\/p\u003e\n\u003cp\u003eProtection from the Outdoors - By making the eyepiece body Argon-purged, the waterproof eyepiece internal elements will remain as pristine as the day they were assembled.\u003c\/p\u003e\n\u003cp\u003eArgon atoms are larger than that of Nitrogen and therefore they are less likely to leak or diffuse their way through the seals over the life of the eyepiece. The atomic radius of Argon is larger than Nitrogen by 0.13 angstroms and has a larger atomic volume by 11.2 cubic centimeters\/molecule. Argon also has superior inertness vs Nitrogen (i.e. forming few or no chemical compounds with other elements) that prevents adverse reactions with eyepiece components and therefore extends the longevity of the internal components, and also prevents chemical reactions with other elemental contaminants that may be introduced through a weakened seal. And, finally because Argon is less conductive of heat than Nitrogen, Argon cools slower thereby buffering the effects of rapid temperature changes of the optics.\u003c\/p\u003e\n\u003cp\u003eThe sealed, dry environment is impervious to internal fogging and contaminants such as fungus growing in between the lens elements. Our waterproof eyepiece is easier to clean, and there is no risk of cleaning solution migrating from the top of the lens and seeping around edges to be trapped in between elements. To insure a perfect seal we test every eyepiece in one meter of water for 30 minutes.\u003c\/p\u003e\n\u003cp\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cstrong\u003eSpecs: \u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFocal Length: 34mm\u003c\/li\u003e\n\u003cli\u003eLength: \u003cspan\u003e100.8mm\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWidth: 69.6mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eWeight: 24.1oz; 685g\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBarrel Size: 2.00\"\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEye Relief: 26.4mm\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eField Stop Diameter: 38.6mm\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!----\u003e","brand":"Explore Scientific","offers":[{"title":"Default Title","offer_id":45451071258647,"sku":"pnp1787927830476","price":140.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0750\/8931\/3815\/files\/explore-scientific-68-series-34mm-waterproof-eyepiece_1.jpg?v=1787927859"}],"url":"https:\/\/elviora.shop\/collections\/eyepiece.oembed","provider":"My Store","version":"1.0","type":"link"}