Eyepieces

Showing 1 to 20 of 21 total
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  1. TeleVue - 17mm Ethos Eyepiece

    $759.01
    SKU: TEL-ETH-17.0

    In stock

    Celebrate the start of the International Year of Astronomy 2009, the 400th anniversary of Galileo's first use of an astronomical telescope, by showing friends and neighbors the best of our wonderful universe.

    FREE SHIPPING(48 States)
  2. Stellarvue - 20mm 100° 2" Optimus Eyepiece

    $399.00
    SKU: STV-EOP-20.0

    More on the way

    With almost one and a half times the area than an 82° eyepiece, the 100° eyepiece is especially handy when using hand driven altaz mounts with its wide field and 15mm eye relief. The eight elements are fully multi-coated, edge blackened and the lens barrel and baffles are dark black. This results in an eyepieces that is free of unwanted reflections, flaring or ghosting.

    FREE SHIPPING(48 States)
  3. Explore Scientific - 9mm 120° Argon Purged Waterproof Eyepiece - 2"

    $999.99
    SKU: EXP-EPWP12009-01

    In stock

    Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coatings

    FREE SHIPPING(48 States)
  4. Stellarvue - Optimus Eyepiece Set with Deluxe Case

    $1,605.00
    SKU: STV-EOPCA-SET

    This Item Will Be Available in 4-6 Weeks

    The Stellarvue Optimus eyepiece set includes all five Optimus 120 and 100 degree eyepieces. Focal lengths are 3.6mm, 4.7mm, 9mm, 13.5mm and 20mm. This kit also includes a deluxe carry case designed to securely hold all five eyepieces, a diagonal and an additional two 1.25" eyepieces and small photographic accessories.

    FREE SHIPPING(48 States)
  5. TeleVue - 6mm Ethos Eyepiece

    $589.01
    SKU: TEL-ETH-06.0

    Estimated shipping time is 3-5 Days

    Celebrate the start of the International Year of Astronomy 2009, the 400th anniversary of Galileo's first use of an astronomical telescope, by showing friends and neighbors the best of our wonderful universe.

    FREE SHIPPING(48 States)
  6. TeleVue - 3.7mm Ethos-SX Eyepiece

    $627.01
    SKU: TEL-ETH-03.7

    Estimated shipping time is 3-5 Days

    With 110°, the Ethos-SX has 21% more AFOV area than the 100° Ethos design. This permits a nice 62% power increase from a 6mm Ethos, while retaining 68% of its TFOV. The 3
    FREE SHIPPING(48 States)
  7. Televue - 13mm Ethos Eyepiece

    $627.01
    SKU: TEL-ETH-13.0

    In stock

    Tele Vue is known for its in-house eyepiece and telescope designs by Al Nagler; our latest eyepiece brings new meaning to the term "in-house
    FREE SHIPPING(48 States)
  8. TeleVue - 21mm Ethos Eyepiece

    $853.01
    SKU: TEL-ETH-21.0

    In stock

    The Ethos 21mm eyepiece completes the logical set of 21mm / 13mm / 8mm and nicely juxtaposes the 17mm / 10mm / 6mm combination. Each step within these two sets approaches a 3x field area gain. The 21mm's effective field stop diameter is 36
    FREE SHIPPING(48 States)
  9. Televue - 8mm Ethos Eyepiece

    $589.01
    SKU: TEL-ETH-08.0

    In stock

    At NEAF 2008 Televue demonstrated a new 8mm focal length, 100° AFOV Ethos eyepiece. In addition to matching all the key performance criteria of its 13mm sibling, the new 8mm version is parfocal in 1

    FREE SHIPPING(48 States)
  10. TeleVue - 10mm Ethos Eyepiece

    $627.01
    SKU: TEL-ETH-10.0

    In stock

    The 10mm Ethos delivers: 100° apparent field (50% larger in area than 82° Naglers), comfortable eye-relief, (accepts DIOPTRX eyesight astigmatism correctors), distortion correction, high contrast and on-axis sharpness for planetary viewing.

    FREE SHIPPING(48 States)
  11. Celestron - PowerSeeker Accessory Kit - 94306

    $46.95
    SKU: CEL-94306

    In stock

    • This economical seven-piece accessory kit enhances the performance of your Celestron PowerSeeker, or most any other telescope
    • Includes two full-size 1.25” eyepieces, three eyepiece filters, a cleaning cloth, and a case
    • One medium power and one high power eyepiece give you a new perspective on celestial objects
    • A Moon filter helps block out some moonlight so you can see more lunar detail, and the two color filters (Red and Blue) highlight features on Mars, Jupiter, and Saturn
    • A hard plastic carry case keeps everything safe in the foam-lined interior
  12. Explore Scientific - 20mm 100° Series Nitrogen Purged Waterproof Eyepiece - 2"

    $549.99
    SKU: EXP-EPWP10020-00

    In stock

    • The Explore Scientific 20mm 100 Degree Nitrogen purged eyepiece boasts an ultra wide angle viewing experience with premium optics for exceptional clarity, contrast, and brightness.
    • A nitrogen purged interior keeps moisture, dust and mold away ensuring your Explore Scientific performs at it’s best for many, many years.
    • 14.5mm eye relief is comfortable for most viewers with or without glasses. 
    • 2” barrel is threaded to accept standard 2” filters and is notched for a secure fit in your focuser or diagonal.
    • Lifetime warranty!
    FREE SHIPPING(48 States)
  13. Meade - MWA 100° 5mm Eyepiece - 1.25" - 607015

    $199.99
    SKU: MEA-607015

    More on the way

    image correction and eye relief and great prices, making them currently Meade's widest angle eyepieces. Pinpoint resolution can
  14. Explore Scientific - 9mm 100° Series Argon Purged Waterproof Eyepiece - 2"

    $549.99
    SKU: EXP-EPWP1009-01

    In stock

    The Explore Scientific 9mm 100 degree waterproof eyepiece features advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coatings. The waterproof interior keep the eyepiece free of fog and mildew. Full lifetime warranty!

    LIFETIME WARRANTY
    FREE SHIPPING(48 States)
  15. Explore Scientific - 14mm 100° Series Argon Purged Waterproof Eyepiece 2"

    $549.99
    SKU: EXP-EPWP10014-01

    In stock

    Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coatings, Explore Scientific 100°

    FREE SHIPPING(48 States)
  16. Explore Scientific - 25mm 100° Series Argon Purged Waterproof Eyepiece - 2"

    $849.99
    SKU: EXP-EPWP10025-01

    In stock

    The Explore Scientific 25mm 100 degree Argon purged waterproof eyepiece combines precision design and engineering with premium optics for a high performance eyepiece. This ultra wide view eyepiece offers an immersive viewing experience. LIFETIME WARRANTY
    FREE SHIPPING(48 States)
  17. Stellarvue - 9mm 100° Optimus Eyepiece - 1.25/2" Barrel

    $349.00
    SKU: STV-EOP-09.0

    More on the way

    The Stellarvue Optimus eyepieces are remarkable high power instruments that are geared for viewing planets and double stars with very sharp and contrast views in a wide 100° field of view. The 9mm version works well for moderate magnification on moon, planets and deep sky.

    FREE SHIPPING(48 States)
  18. Stellarvue - 3.6mm 110° Optimus Eyepiece - 1.25/2" Barrel

    $349.00
    SKU: STV-EOP-03.6

    More on the way

    The Stellarvue Optimus Eyepieces are excellent for those stargazers who want high power on planets and double stars due to the sharp contrast and 110° field of view. the 3.6mm version will help details on planets become more apparent.

    FREE SHIPPING(48 States)
  19. Stellarvue - 4.7mm 110° Optimus Eyepiece - 1.25/2" Barrel

    $349.00
    SKU: STV-EOP-04.7

    More on the way

    The Stellarvue Optimus eyepieces are remarkable high power instruments that are geared for viewing planets and double stars with very sharp and contrast views in a wide 110° field of view. The 4.7mm version works well when viewing planets and want to boost the power for better detail observation.

    FREE SHIPPING(48 States)
  20. Celestron - AstroMaster Accessory Kit - 94307

    Regular Price: $69.95

    You Pay: $57.95

    SKU: CEL-94307

    More on the way

    • This economical eight-piece eyepiece and filter accessory kit enhances the performance of your Celestron AstroMaster, or most any other telescope
    • The Celestron 94307 AstroMaster Accessory Kit includes two 1.25” eyepieces, a 2X Barlow lens, three filters, a cleaning cloth, and a case!
    • With two extra eyepieces and a Barlow lens, you get four different magnifications to choose from
    • A Moon filter helps block out some moonlight so you can see more lunar detail, and the two color filters (Red and Blue) highlight features on Mars, Jupiter, and Saturn
    • A plastic, hard carry case keeps everything safe in the foam-lined interior
Showing 1 to 20 of 21 total
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The specifications of a telescope are NOT the only specs that matter. The other half of the equation is the specifications of the eyepiece. Telescope eyepieces are made in different models and sizes to accommodate different observing methods and celestial objects. For example, understanding the focal length of your optical tube divided by the focal length of your eyepiece will result in magnification, which in return can tell you whether it is more suitable for deep space low surface brightness observation or planetary/terrestrial high surface brightness observation. For example, if you wanted to observe an object such as the Andromeda Galaxy with a large apparent diameter, an eyepiece with a long focal length and large apparent field of view would excel over an eyepiece with a shorter focal length and small apparent field of view because it would be able to accommodate the size of the object at low magnification and high FOV while not getting dimmer images as you would with short focal lengths. If you plan on observing planets, a short focal length eyepiece with a small FOV will result in high magnification to observe details on the surface (eg. Great Red Spot). You'll get a dimmer image, but since planets are already bright as it is, this won't be an issue. - Note: Almost all eyepieces come in 2" or 1.25" barrel size forms.