Eyepieces

20 Item(s)
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  1. 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)
  2. Explore Scientific - 4.5mm 52° Argon-Purged Waterproof Eyepiece

    $79.99
    SKU: EXP-EPWP5245-01

    In stock

    Explore Scientific Waterproof Eyepieces - Comfort, Quality, Value. The Explore Scientific 52° Series™ eyepieces are excellent flat-field multi-element oculars that can transform your visual astronomy experience. With an apparent field of view of 52 degrees, these eyepieces offer incredible value in a very nice eyepiece. Expect exceptional quality and value versus a comparably priced Plossol.

  3. Explore Scientific - 3mm 52° Argon-Purged Waterproof Eyepiece - 1.25"

    $79.99
    SKU: EXP-EPWP5203-01

    In stock

    Explore Scientific Waterproof Eyepieces - Comfort, Quality, Value. The Explore Scientific 52° Series™ eyepieces are excellent flat-field multi-element oculars that can transform your visual astronomy experience. With an apparent field of view of 52 degrees, these eyepieces offer incredible value in a very nice eyepiece. Expect exceptional quality and value versus a comparably priced Plossol.

  4. Explore Scientific - 62° 14mm Long Eye Relief Waterproof Eyepiece - 1.25"

    $109.99
    SKU: EXP-EPWP6214LE-01

    In stock

    Explore Scientific 14mm 62 degree eyepieces combine comfort, quality and performance in an affordable, waterproof eyepiece. These 62 degree eyepieces are premium flat-field eyepieces that offer a transformative observing experience. An apparent field of view of 62 degree and near par focal designs, this Explore Scientific eyepiece series also has excellent contrast for easy viewing. This eyepiece has a moderate eye relief of 10.4mm and a field stop of 14.7mm.
  5. Explore Scientific - 62° 20mm Waterproof Eyepiece - 1.25"

    $109.99
    SKU: EXP-EPWP6220LE-01

    In stock

    Explore Scientific 20mm 62 degree eyepieces combine comfort, quality and performance in an affordable, waterproof eyepiece. These 62 degree eyepieces are premium flat-field eyepieces that offer a transformative observing experience. An apparent field of view of 62 degree and near par focal designs, this Explore Scientific eyepiece series also has excellent contrast for easy viewing. This eyepiece has a moderate eye relief of 14.8mm and a field stop of 20.9mm.
  6. Explore Scientific - 20mm 52° Argon-Purged Waterproof Eyepiece - 1.25"

    $79.99
    SKU: EXP-EPWP5220-01

    In stock

    Explore Scientific Waterproof Eyepieces - Comfort, Quality, Value. The Explore Scientific 52° Series™ eyepieces are excellent flat-field multi-element oculars that can transform your visual astronomy experience. With an apparent field of view of 52 degrees, these eyepieces offer incredible value in a very nice eyepiece. Expect exceptional quality and value versus a comparably priced Plossol.

  7. Explore Scientific - 62° 9mm Long Eye Relief Waterproof Eyepiece - 1.25"

    $109.99
    SKU: EXP-EPWP6209LE-01

    More on the way

    Explore Scientific 9mm 62 degree eyepieces combine comfort, quality and performance in an affordable, waterproof eyepiece. These 62 degree eyepieces are premium flat-field eyepieces that offer a transformative observing experience. An apparent field of view of 62 degree and near par focal designs, this Explore Scientific eyepiece series also has excellent contrast for easy viewing. This eyepiece has a moderate eye relief of 12.6mm.
  8. 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)
  9. Explore Scientific - 11mm 82° Argon Purged Waterproof Eyepiece - 1.25"

    $199.99
    SKU: EXP-EPWP8211-01

    In stock

    The Explore Scientific 11mm 82 degree eyepiece is Argon purged to remain waterproof and fog proof, keeping your optics in pristine condition for the life of the eyepiece. Comfortably wide field of view offers stunning high contrast views. 1.25" barrel. Lifetime warranty!
  10. Explore Scientific - 14mm 82° Series Argon Purged Waterproof Eyepiece - 1.25"

    $199.99
    SKU: EXP-EPWP8214-01

    In stock

    The Explore Scientific 14mm 82 degree eyepiece is Argon purged to remain waterproof and fog proof, keeping your optics in pristine condition for the life of the eyepiece.  Comfortably wide field of view offers stunning high contrast views. 1.25" barrel.  Lifetime warranty!  

  11. Explore Scientific - 18mm 82° Argon Purged Waterproof Eyepiece - 2"

    $299.99
    SKU: EXP-EPWP8218-01

    In stock

    Explore Scientific's 82 Degree 18mm eyepiece is a waterproof, Argon purged telescope eyepiece featuring ultra wide apparent field of view with a 2" barrel. High contrast and brilliant true color, Explore Scientific 82º eyepieces offer exceptional quality at incredible value.

    FREE SHIPPING(48 States)
  12. 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)
  13. 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)
  14. 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)
  15. Explore Scientific - 62° 5.5mm Long Eye Relief Waterproof Eyepiece - 1.25"

    $109.99
    SKU: EXP-EPWP6255LE-01

    In stock

    Explore Scientific 5.5mm 62 degree eyepieces combine comfort, quality and performance in an affordable, waterproof eyepiece. These 62 degree eyepieces are premium flat-field eyepieces that offer a transformative observing experience. An apparent field of view of 62 degree and near par focal designs, this Explore Scientific eyepiece series also has excellent contrast for easy viewing. This eyepiece has a moderate eye relief of 12.9mm.
  16. Explore Scientific - 20mm 68° Argon-Purged Waterproof Eyepiece - 1.25"

    $179.99
    SKU: EXP-EPWP6820-01

    In stock

    Explore 68° Series Eyepieces are optimized through each design, fabrication, and testing process to produce high contrast, high resolution images.

  17. Explore Scientific - 16mm 68° Argon-Purged Waterproof Eyepiece - 1.25"

    $179.99
    SKU: EXP-EPWP6816-01

    In stock

    Explore 68° Series Eyepieces are optimized through each design, fabrication, and testing process to produce high contrast, high resolution images.

  18. Explore Scientific - 4.7mm 82° Series Argon Purged Waterproof Eyepiece - 1.25"

    $199.99
    SKU: EXP-EPWP8247-01

    In stock

    • The Explore Scientific 4.7mm 82 degree eyepiece is a high quality, high power eyepiece with a comfortably wide apparent field of view.
    • 13.6mm eye relief.
    • 1.25" barrel.
    • LIFETIME WARRANTY
  19. Explore Scientific - 6.7mm 82° Series Argon Purged Waterproof Eyepiece - 1.25"

    $199.99
    SKU: EXP-EPWP8267-01

    More on the way

    The Explore Scientific 6.7mm 82 degree eyepiece is Argon purged to remain waterproof and fog proof, keeping your optics in pristine condition for the life of the eyepiece. 1.25" barrel. Comfortably wide field of view offers stunning high contrast views. Lifetime warranty!

  20. Explore Scientific - 8.8mm 82° Series Argon Purged Waterproof Eyepiece - 1.25"

    $199.99
    SKU: EXP-EPWP8288-01

    In stock

    The Explore Scientific 8.8mm 82 degree eyepiece is Argon purged to remain waterproof and fog proof, keeping your optics in pristine condition for the life of the eyepiece. 1.25" barrel. Comfortably wide field of view offers stunning high contrast views. Lifetime warranty!
20 Item(s)
Set Ascending Direction

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.