{"product_id":"used-zhumell-18mm-long-eye-relief-eyepiece-1-25","title":"Used Zhumell 18mm Long Eye Relief eyepiece, 1.25\"","description":"\u003ch4\u003eCondition:\u003c\/h4\u003e\n\u003cp\u003eThis is a used Zhumell 18mm LER eyepiece in excellent condition.  The optics and body are clean and free of any marks. This does not include a box or case, but comes with both dust caps. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch5\u003eDescription:\u003c\/h5\u003e\n\u003cdiv class=\"product info short_description\"\u003e\n\u003cdiv class=\"value\"\u003e\n\u003cdiv class=\"product attribute short_description\"\u003e\n\u003cdiv class=\"value\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product info description\"\u003e\n\u003cp\u003e\u003cspan\u003eZhumell Z Series Planetary 18mm Eyepiece will heighten the enjoyment of your telescope by increasing magnification without breaking the bank\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eOne of the features that sets Zhumell Z Series Planetary Eyepieces apart from the competition is their extra long eye relief of 20mm. \u003c\/span\u003e\u003cspan\u003eWith great eye relief such as this, your eyelashes will stay away from the glass, and if you wear eyeglasses, \u003c\/span\u003e\u003cspan\u003eyou will find that viewing is extra comfortable and you can see the entire field of view\u003c\/span\u003e\u003cspan\u003e.\u003c\/span\u003e\u003cspan\u003e A soft rubber eyecup provides a cushion between the eyepiece barrel and your eye or glasses. Just fold the eyecup down if you’re an eyeglass wearer, or keep it upright if you’re not.\u003c\/span\u003e\u003cbr aria-hidden=\"true\"\u003e\u003cbr aria-hidden=\"true\"\u003e\u003cspan\u003eThe Zhumell Z Series eyepieces reveal an apparent field of view of 55 degrees; perfect for planets, the Moon, and most deep-sky objects. Their barrel size is a standard 1.25” in diameter, making them compatible with a huge variety of telescope focusers, diagonals, Barlow lenses, and other astronomical accessories. To help bring out details on the planets, or decrease the light throughput when viewing brilliant objects such as the Moon and Venus, simply thread an 1.25” planetary or moon filter to the end of the eyepiece barrel.\u003c\/span\u003e \u003c\/p\u003e\n\u003cdiv class=\"value\"\u003e\n\u003cdiv class=\"product attribute description\"\u003e\n\u003cdiv class=\"value\"\u003e\n\u003cp\u003eThese eyepieces bring together in an extraordinary way the\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eelegance\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eoptical power\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eand will enrich your observation results in the future. All Zhumell LER eyepieces feature a\u003cspan\u003e \u003c\/span\u003e\u003cb\u003every high synchronized power with respect to sharpness and contrast\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003ethat you search in vain in eyepieces of this category. Which is attached to an excellent optical design, as the eyepieces correspond exactly to the conditions required by the people making the observations.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eComfortable handling and excellent contrast\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eEven in the case of high-power reflector telescopes, LER eyepieces give\u003cspan\u003e \u003c\/span\u003e\u003cb\u003ecompletely distortion-free representations up to the edge of the visual field\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e. The interior layout consists of\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eseven groups of lens elements in four groups\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003e(in the case of 3mm focal length, five elements in three groups). The\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eedges of all lenses\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eThey have a black coating, and the glass\/air surfaces are vaporized with a highly effective multi-layer coating to suppress reflections. A notable difference from conventional eyepieces is the\u003cspan\u003e \u003c\/span\u003e\u003cb\u003elarge interocular distance\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eof 20mm, which guarantees the\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eVery comfortable handling\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e. Even people who wear glasses can benefit from the full field of vision. The apparent field of vision increases to 55\u003cspan\u003e \u003c\/span\u003e\u003csup\u003e°\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eBrilliant renderings and excellent transparency\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eVarious tests have demonstrated, compared to similar eyepieces, greater transparency and brighter images with dark backgrounds and without disturbing stray light. The internal aperture system contributes substantially to the reduction of stray light. All focusing distances have 21 mm diameter lenses at the observation end. The eyepieces, at the edges, do not artificially increase the field of view, but rather\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eThey represent a real field without serious distortions\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eon the edges.\u003c\/p\u003e\n\u003cp\u003eWhen using LE eyepieces,\u003cspan\u003e \u003c\/span\u003e\u003cb\u003eIt is not necessary to adhere exactly to the optical axis.\u003cspan\u003e \u003c\/span\u003e\u003c\/b\u003eVibrations when viewed through this device do not disturb observation, as they do not cause shadows, which are often called the \"kidney bean effect.\"\u003cb\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eThe advantages at a glance:\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHigh-quality eyepieces\u003c\/li\u003e\n\u003cli\u003eRobust body of the eyepiece\u003c\/li\u003e\n\u003cli\u003eHigh contrasts\u003c\/li\u003e\n\u003cli\u003eComfortable to handle\u003c\/li\u003e\n\u003cli\u003eInterocular distance of 20mm\u003c\/li\u003e\n\u003cli\u003eSoft rubber goggles\u003c\/li\u003e\n\u003cli\u003eSuitable for double application\u003c\/li\u003e\n\u003cli\u003eNo noticeable kidney-bean effect\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote:\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eLER-Planetary eyepieces are ideal for observing planets, providing high-contrast images. They are also ideal for observing deep sky objects, as they also provide high contrast and high transmission.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Zhumell","offers":[{"title":"Default Title","offer_id":50139196031235,"sku":"U2610-HS-ZLER18","price":30.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1979\/5379\/files\/camera-DD596745-589F-4880-B468-315693EFC1B2.jpg?v=1793830961","url":"https:\/\/milehighastro.com\/products\/used-zhumell-18mm-long-eye-relief-eyepiece-1-25","provider":"Mile High Astronomy","version":"1.0","type":"link"}