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Celestron
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Celestron
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Celestron
The Celestron Cheshire Collimation Eyepiece is ideal for precise collimation of Newtonians and helpful for aligning Schmidt-Cassegrains. This special eyepiece fits into 1¼" focusers or diagonals. Alignment is easy using the small opening on one end and thin cross hairs at the other end. The collimation eyepiece is more accurate than the simple Collimation Tool.
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Celestron
If you are looking to move up to a higher quality eyepiece the Omni series provides more enhanced features in a wider selection of focal lengths. Celestron designed this series with the finer points in mind so you, the user, can benefitfrom the features that make this series unique. The Omni is a 4 -element premium symmetrical Plossl optical design. Features include blackened lens edges to minimize internal reflection and maximize contrast, multi-layer coating group oneach lens surface to maximize light transmission and contrast, and each Omni goes through a two-step anodizing process to prevent reflection from the top eyepiece barrel, unlike most other manufactures who use reflective surfaces. Threaded barrels accept 1-1/4" Celestron thread-in filters.
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Celestron
If you are looking for an eyepiece that excels for planetary viewing, then Celestron's X-Cel offers the unique features you are looking for. A 6-element fully multi-coated optical design, the X-Cel utilizes extra low dispersion (ED) glass on its most highly curved surfaces, to minimize chromatic aberration that can hinder sharp planetary views. With a wide 55° apparent field of view, and a large 25mm clear aperture the X-Cel is one of the most comfortable eyepieces to use. Every X-Cel eyepiece is parfocal with each other, meaning little or no focusing is needed when changing from low to high power. The X-Cel comes with soft rubber eyecups and a durable plastic case. In addition, if you are an eyeglass wearer, you will enjoy the 20mm eye relief available on each of the X-Cel focal lengths. Threaded barrels accept 1-1/4" Celestron thread-in filters.
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Meade
This illuminated reticle has a built-in cordless illuminator for use with any make or model telescope and/or off-axis guider . . .
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ORION
With a wide 52-degree apparent field (43-degree for the 40mm), our Sirius Plossl eyepieces provide clear, sharp images of impressively high contrast. They're suitable all telescope types: reflector, refractor, and catadioptric. Each 4-element Sirius Plossl is fully coated with magnesium fluoride on every air-to-glass lens surface, with at least one surface multi-coated for even greater light transmission. Lens edges are blackened to reduce scattering of stray light and maximize contrast. Lenses are mounted in black anodized aluminum housings with 1.25" chrome-plated brass barrels. Each is fitted with a rubber eyeguard and internally threaded to accept standard filters. Upgrade to Sirius Plossls today for a great price!
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Celestron
If you are looking for an eyepiece that excels for planetary viewing, then Celestron's X-Cel offers the unique features you are looking for. A 6-element fully multi-coated optical design, the X-Cel utilizes extra low dispersion (ED) glass on its most highly curved surfaces, to minimize chromatic aberration that can hinder sharp planetary views. With a wide 55° apparent field of view, and a large 25mm clear aperture the X-Cel is one of the most comfortable eyepieces to use. Every X-Cel eyepiece is parfocal with each other, meaning little or no focusing is needed when changing from low to high power. The X-Cel comes with soft rubber eyecups and a durable plastic case. In addition, if you are an eyeglass wearer, you will enjoy the 20mm eye relief available on each of the X-Cel focal lengths. Threaded barrels accept 1-1/4" Celestron thread-in filters.
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Celestron
If you are looking to move up to a higher quality eyepiece the Omni series provides more enhanced features in a wider selection of focal lengths. Celestron designed this series with the finer points in mind so you, the user, can benefitfrom the features that make this series unique. The Omni is a 4 -element premium symmetrical Plossl optical design. Features include blackened lens edges to minimize internal reflection and maximize contrast, multi-layer coating group oneach lens surface to maximize light transmission and contrast, and each Omni goes through a two-step anodizing process to prevent reflection from the top eyepiece barrel, unlike most other manufactures who use reflective surfaces. Threaded barrels accept 1-1/4" Celestron thread-in filters.
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Celestron
If you are looking for an eyepiece that excels for planetary viewing, then Celestron's X-Cel offers the unique features you are looking for. A 6-element fully multi-coated optical design, the X-Cel utilizes extra low dispersion (ED) glass on its most highly curved surfaces, to minimize chromatic aberration that can hinder sharp planetary views. With a wide 55° apparent field of view, and a large 25mm clear aperture the X-Cel is one of the most comfortable eyepieces to use. Every X-Cel eyepiece is parfocal with each other, meaning little or no focusing is needed when changing from low to high power. The X-Cel comes with soft rubber eyecups and a durable plastic case. In addition, if you are an eyeglass wearer, you will enjoy the 20mm eye relief available on each of the X-Cel focal lengths. Threaded barrels accept 1-1/4" Celestron thread-in filters.
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ORION
The Ultrascopic eyepiece series offers unsurpassed image fidelity. Rather than having a single layer of magnesium fluoride on most lens elements, Ultrascopics are Ultra Multi-Coated, meaning that every air-to-glass lens surface is vacuum coated with multiple antireflective layers. There is no higher level of multi-coating. These coatings, coupled with a low-reflection barrel with blackened lens edges, improves both brightness and contrast of faint nebulas and galaxies. These premium 1.25" eyepieces employ 5- or 7-elements using high-refractive-index glass. Each produces a wide 52-degree apparent field of view (49-degree for the 35mm). Internally threaded for filters.
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ORION
Our Explorer II series are good-quality 3- and 4-element eyepieces each with a 50-degree apparent field of view and attractively priced for limited budgets. The lenses are carefully ground and polished from optical quality glass to provide excellent image definition. They're fully coated with anti-reflection material to maximize light transmission. The anodized aluminum barrels are internally blackened to prevent stray light reflections and internally threaded to accept standard light-pollution and color filters.
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ORION
With a wide 50-degree apparent field (43-degree for the 40mm), our Sirius Plossl line of eyepieces provide clear, sharp images of impressively high contrast. They're suitable all telescope types: reflector, refractor, and catadioptric. Each 4-element Sirius Plossl is fully coated with magnesium fluoride on every air-to-glass surface. Lens edges are blackened to reduce scattering of stray light and maximize contrast. Lenses are mounted in black anodized aluminum housings with 1.25" chrome-plated brass barrels. Each is fitted with rubber eyeguards and internally threaded to accept standard filters.
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William Optics
SPL 12.5mm (1.25") Eyepiece... William Optics is proud to introduce the SPL (Super Planetary Long eye-relief) eyepieces. This new Planetary Eyepiece series is designed for users with needs of a high-power, sharp and contrasty views for planetary observations. The long eye relief is a bonus for people with eyeglasses and for people who do not want to strain their eyesight during observation sessions. High Quality Optical Lens: Special glasses and perfect multi-coatings make the optical performance of SPL amazing in almost any telescope. a very well corrected field of view, free from optical aberrations allows you to finally enjoy planets as they deserve. Good transmittance and excellent color rendition will allow you to enjoy planetary details you had missed so far. Leave ghosting and flares to other eyepieces:your William Optics SPL will not disappoint you. High Power and High Contrast: Available in three focal lenghts, 3mm, 6mm, and 12.5mm, these eyepieces will satisfy any power requirement. Easy to Barlow, they will yield amazing results even at the highest powers (provided that atmospherical conditions and your telescope can hold such high powers!). Great contrast and sharp to the edge. Distortion-free EXTRA details is not a miracle: it all goes down to quality construction and design. SPL give you just what you always wanted. Long Eye relief: All three focal lenghts boast very long
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Celestron
This multi-function guiding eyepiece features a laser-etched reticle with a built-in, battery illuminator. The eyepiece is a multi-coated 12.5mm Abbe (four element) Orthoscopic. Usage possibilities include: direct guiding on stars outside the center of the field of view; greatly improved off-axis guiding to capture much fainter, sharply focused guide stars without reducing limiting magnitude; and measuring position angles and separation of double stars.The Micro Guide Eyepiece is totally free of internal reflections and offers sufficient eye relief for the reticle to be viewed easily, even with eyeglasses. Its finely etched micrometer scale has gradations 50 microns apart and 15 microns wide. Included are: the eyepiece, built-in cordless illuminator with adjustable brightness control, batteries and instructions. The apparent field of view is 42°.
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Pentax Sport Optics
All smc PENTAX XW-series eyepieces feature an extra-wide 70-degree apparent angle of view and an extra-long 20mm eye relief to deliver an exciting, wide-perspective image.The high-performance XW-series optics incorporates high-refraction, extra-low-dispersion lanthanum glass elements to produce a well-balanced image with minimal aberrations. It is particularly designed to reduce the disturbing blackout effect by effectively compensating the spherical aberration of the pupil.All lens surfaces that come in contact with air are treated with the original multi-layer coating, while all laminated surfaces are treated with the innovative partial coating, to offer the light transmission efficiency of more than 90 percent (an astonishing 96 percent at 550nm) over the visible light spectrum.Thanks to PENTAX's advanced computer simulation technology, the XW series features a light-shielding diaphragm at the most effective position to drastically reduce internal reflections for a brighter, higher-contrast image.With four different magnifications (7mm, 10mm, 14mm and 20mm) to choose from, the XW series accommodates a wide range of both casual and specialized applications.The XW series features JIS Class 4 weatherproof construction, making it possible to use it in drizzle or under night dew. The XW-series eyepieces are not designed for underwater use and should not be submerged under water.The XW series features the American-standard 31.7mm for smooth, easy installation on the PENTAX spotting scopes. When the rotatable eyecup is removed, it also offers an adapter-mounting screw/thread (43mm in diameter with a 0.75mm pitch).
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Celestron
Guiding (or reticle) eyepieces are mandatory for guided astrophotography. They keep a guide star stationary during long exposures to avoid star trailing. This 5-element guiding eyepiece has a reticle pattern that is a .0075" double spaced line system. The optics are multicoated for increased contrast and have long eyerelief. The high power is ideal for guiding and it has a 50° apparent field of view. This type of reticle pattern allows you to position the guide star in the middle square or at the intersection of two lines, whichever is easier for you. An optional illuminator is required.
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Celestron
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Celestron
If you are looking for an eyepiece that excels for planetary viewing, then Celestron's X-Cel offers the unique features you are looking for. A 6-element fully multi-coated optical design, the X-Cel utilizes extra low dispersion (ED) glass on its most highly curved surfaces, to minimize chromatic aberration that can hinder sharp planetary views. With a wide 55° apparent field of view, and a large 25mm clear aperture the X-Cel is one of the most comfortable eyepieces to use. Every X-Cel eyepiece is parfocal with each other, meaning little or no focusing is needed when changing from low to high power. The X-Cel comes with soft rubber eyecups and a durable plastic case. In addition, if you are an eyeglass wearer, you will enjoy the 20mm eye relief available on each of the X-Cel focal lengths. Threaded barrels accept 1-1/4" Celestron thread-in filters.
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Celestron
If you are looking for an eyepiece that excels for planetary viewing, then Celestron's X-Cel offers the unique features you are looking for. A 6-element fully multi-coated optical design, the X-Cel utilizes extra low dispersion (ED) glass on its most highly curved surfaces, to minimize chromatic aberration that can hinder sharp planetary views. With a wide 55° apparent field of view, and a large 25mm clear aperture the X-Cel is one of the most comfortable eyepieces to use. Every X-Cel eyepiece is parfocal with each other, meaning little or no focusing is needed when changing from low to high power. The X-Cel comes with soft rubber eyecups and a durable plastic case. In addition, if you are an eyeglass wearer, you will enjoy the 20mm eye relief available on each of the X-Cel focal lengths. Threaded barrels accept 1-1/4" Celestron thread-in filters.