{"product_id":"tele-vue-delos-6mm-72-degree-eyepiece","title":"Tele Vue Delos 6mm 72° Eyepiece - 1.25\"","description":"\u003cul class=\"DAV-feature-list\"\u003e\n\u003cli\u003eFocal Length: 6mm\u003c\/li\u003e\n\u003cli\u003eApparent Field of View: 72°\u003c\/li\u003e\n\u003cli\u003eBarrel Size: 1.25\"\u003c\/li\u003e\n\u003cli\u003eEye Relief: 20mm\u003c\/li\u003e\n\u003cli\u003eOptical Design: Delos\u003c\/li\u003e\n\u003cli\u003eCoatings: Fully Multi-Coated\u003c\/li\u003e\n\u003cli\u003eWeight: 0.45 lbs\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\u003ePlanetary Power Meets Deep-Sky Comfort: The Delos 6mm Eyepiece\u003c\/h2\u003e\n\u003cp\u003eThe Tele Vue Delos 6mm 72° Eyepiece is an optical instrument designed for high-magnification observers who refuse to compromise on comfort or field of view. It delivers the sharp, high-contrast performance required for detailed planetary, lunar, and double-star observation, while providing a wide 72° apparent field and a generous 20mm of eye relief. This unique combination solves the classic problem of high-power eyepieces: the trade-off between power and viewing comfort.\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 Wide-Field Window for High-Power Observing\u003c\/h3\u003e\n\u003cp\u003eThe Delos 6mm provides a 72-degree apparent field of view that feels expansive at high power. This moderately wide field makes it easier to locate and track objects, especially with non-driven mounts, as the target drifts more slowly across your view. The optical system is engineered to maintain sharp, high-contrast star points and planetary details across the entire field, largely free of distracting lateral color or edge-of-field astigmatism, even in fast f\/ratio telescopes.\u003c\/p\u003e\n\u003cp\u003eFor the observer, this means you can study the delicate banding on Jupiter or the Cassini Division in Saturn's rings without the planet softening as it moves away from the center. The wider field provides a more immersive context, framing the target against a dark, velvety background, which makes the experience more like looking through a porthole than a keyhole.\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\u003eMaximum Contrast Through Advanced Coatings\u003c\/h3\u003e\n\u003cp\u003eEvery air-to-glass surface in the Delos 6mm receives Tele Vue's proprietary index-matched multi-coatings, while the lens edges are meticulously blackened. This two-part approach is critical for high-magnification work, where maximizing light throughput and minimizing scatter are paramount. The coatings ensure that the maximum amount of light from the target reaches your eye, while the blackened edges prevent stray light from bouncing between elements and reducing contrast.\u003c\/p\u003e\n\u003cp\u003eThe visual result is a view with a starkly black background, allowing faint planetary details, subtle lunar crater floor textures, and the dim companions of double stars to stand out. This high signal-to-noise ratio is what separates a good view from a memorable one, especially when pushing the limits of your telescope on a night of steady seeing.\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\u003eConsistent 20mm Eye Relief for Viewing Comfort\u003c\/h3\u003e\n\u003cp\u003eOne of the defining features of the Delos series is its consistent, long 20mm eye relief. Unlike many high-power eyepieces that force you to press your eye against the lens, the Delos 6mm allows you to maintain a comfortable distance. This is a significant advantage for eyeglass wearers, who can see the entire 72° field of view without removing their glasses. For all observers, it reduces eye strain during long sessions, allowing your eye to relax and perceive more subtle details.\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\u003ePrecision Tuning with the Locking Eyeguard\u003c\/h3\u003e\n\u003cp\u003eTo complement the long eye relief, the Delos features an adjustable, locking eyeguard. This mechanical system allows you to set the perfect distance between your eye and the top lens, effectively tuning the eyepiece to your unique facial structure and preference, with or without glasses. Once you find the sweet spot where the full field is visible without blackouts or \"kidney-beaning,\" you can lock it in place for repeatable, instant comfort every time you use it.\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\u003eSeamless Transitions with a Parfocal Design\u003c\/h3\u003e\n\u003cp\u003eThe Delos 6mm is designed to be parfocal with the entire Delos line and most other Tele Vue 1.25\" eyepieces, such as Plössls and Panoptics. This means that when you switch from a lower-power Tele Vue eyepiece to the 6mm Delos, you will only need a minimal turn of the focus knob, if any. This practical feature saves valuable time in the field, keeping your target in sharp focus as you step up in magnification and preventing the frustration of having to re-acquire the object.\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\u003eCorrecting Astigmatism with DIOPTRX\u003c\/h3\u003e\n\u003cp\u003eFor observers with astigmatism, the Delos 6mm is threaded to accept Tele Vue's DIOPTRX correctors. This accessory attaches directly to the eyepiece, allowing you to dial in your precise astigmatism correction. The benefit is significant: you can observe without your eyeglasses, eliminating the extra glass surfaces and potential reflections, while still enjoying the sharpest possible star points your telescope can deliver. It makes the eyepiece a truly customized tool for your eyes.\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\u003eObserving with the Delos 6mm\u003c\/h3\u003e\n\u003cp\u003eOn a night of good seeing, insert the 6mm Delos into a quality 4-inch refractor to achieve around 160x. Center on the lunar crater Clavius. The view is not just a flat white disk; the high-contrast optics reveal the subtle grayscale variations in the crater floor and the crisp shadows cast by the central peaks. The 72° field allows you to take in the entire crater and its surroundings without feeling cramped, and the long eye relief lets you study the details for minutes on end without fatigue.\u003c\/p\u003e\n\u003cp\u003eThe main limitation of any high-power eyepiece is its dependence on atmospheric conditions. The 6mm focal length will deliver very high magnification in most telescopes, and if the seeing is poor, the image will appear soft or blurry. On such nights, a lower-power eyepiece will provide a more satisfying view. However, when the atmosphere is stable, the Delos 6mm provides a level of detail that makes waiting for those nights worthwhile.\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\u003eChoosing Your High-Power Tele Vue Eyepiece\u003c\/h3\u003e\n\u003cp\u003eTele Vue offers several options for high-magnification observing. Understanding the trade-offs helps in making the right choice for your observing style.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Nagler Type 6 5mm:\u003c\/strong\u003e The 5mm Nagler provides a wider 82° apparent field, creating a more immersive \"spacewalk\" experience. However, it achieves this with a much shorter eye relief of 12mm, which can be difficult for eyeglass wearers. The Delos 6mm prioritizes viewing comfort with its 20mm eye relief while still offering a generous 72° field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003evs. Plössl 8mm + 2x Barlow:\u003c\/strong\u003e A classic combination that is sharp on-axis but suffers from a narrow 50° apparent field and tight eye relief. The Delos 6mm offers a significantly wider, more comfortable, and more engaging view in a single, integrated package. Choose the Delos when field of view and comfort are as important as raw power.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cli\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eIs the Delos 6mm a good choice for my 8\" Dobsonian?\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 f\/6 Dobsonian, a 6mm eyepiece yields 200x magnification, a sweet spot for planetary and lunar detail. The 72° field of view provides more time to observe an object as it drifts, which is a major advantage with a non-tracking mount.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eHow does the Delos 6mm compare to the Nagler 5mm?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe Delos prioritizes viewing comfort with 20mm of eye relief, making it ideal for eyeglass wearers. The Nagler provides a wider 82° field but has a tighter 12mm eye relief. If you value comfort and wear glasses, choose the Delos; if you want the most immersive field possible and don't require long eye relief, the Nagler is a strong option.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eCan I use the Delos 6mm with a Barlow lens?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eYou can, but it will result in extremely high magnification that is only usable on nights of exceptional atmospheric stability. A 2x Barlow would yield magnifications often too high for most telescopes and seeing conditions. The Delos is designed to be a primary high-power eyepiece on its own.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eWhat is the main benefit of the locking eyeguard?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eThe locking eyeguard allows you to set the perfect eye distance to see the full field of view without blackouts. Once you find your ideal position, you can lock it, so it's perfectly set for you every time, saving adjustment time in the dark.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion\"\u003e\n\u003ch3 class=\"DAV-accordion-Q\"\u003eDo I need DIOPTRX if I have astigmatism?\u003c\/h3\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"DAV-accordion-A\"\u003e\n\u003cp\u003eIf you have astigmatism, you can observe with your glasses on thanks to the Delos's long eye relief. However, using the DIOPTRX allows you to observe without glasses, removing extra layers of glass for a higher-contrast view and providing a perfectly sharp focus customized for your eyes.\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\u003e6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApparent Field of View\u003c\/td\u003e\n\u003ctd\u003e72°\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEye Relief\u003c\/td\u003e\n\u003ctd\u003e20mm\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\u003eField Stop Diameter\u003c\/td\u003e\n\u003ctd\u003e7.6mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoatings\u003c\/td\u003e\n\u003ctd\u003eFully index-matched multi-coatings\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e0.45 lbs \/ 204 g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions\u003c\/td\u003e\n\u003ctd\u003e1.5\" D x 3.5\" H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eParfocal\u003c\/td\u003e\n\u003ctd\u003eYes, with Tele Vue Group \"B\" eyepieces (Plössl, Panoptic, Nagler, etc.)\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\"\u003eTele Vue Delos 6mm 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\/Tele_Vue_Delos_6mm_Eyepiece_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\/tele-vue-warranty-policy\" rel=\"noopener\" target=\"_blank\"\u003eTele Vue 5-Year Limited Warranty\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/div\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TeleVue","offers":[{"title":"Default Title","offer_id":51223878992157,"sku":"TV-EDL-06.0","price":613.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0753\/5280\/1565\/files\/Tele_Vue_Delos_6mm_Eyepiece_1.jpg?v=1777515020","url":"https:\/\/davidastro.com\/fr\/products\/tele-vue-delos-6mm-72-degree-eyepiece","provider":"David Astro","version":"1.0","type":"link"}