Eyepieces

7 Item(s)
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  1. Explore Scientific - 9mm 120° Argon Purged Waterproof Eyepiece - 2"

    Regular Price: $999.99

    You Pay: $799.99

    Thanksgiving Harvest Sale!
    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

    Thanksgiving Harvest Sale!
    FREE SHIPPING(48 States)
  2. Explore Scientific - 20mm 100° Series Nitrogen Purged Waterproof Eyepiece - 2"

    Regular Price: $549.99

    You Pay: $419.99

    Thanksgiving Harvest Sale!
    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!
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  3. Explore Scientific - 30mm 100° Series Argon Purged Waterproof Eyepiece - 3"

    Regular Price: $999.99

    You Pay: $719.99

    Thanksgiving Harvest Sale!
    SKU: EXP-EPWP10030-01

    In stock

    The low dispersion and high refractive optical glass make the Explore Scientific 100° 30mm Argon-Purged 100 degree eyepiece remarkable for high contrast and high resolution images as well as producing very flat fields.

    Finally It is Here. You Can Have Your Own 3" 100 Degree 30mm Eyepiece.

    LIFETIME WARRANTY
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  4. Explore Scientific - 5.5mm 100° Argon Purged Waterproof Eyepiece - 2"

    Regular Price: $449.99

    You Pay: $329.99

    Thanksgiving Harvest Sale!
    SKU: EXP-EPWP10055-01

    In stock

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

    LIFETIME WARRANTY
    Thanksgiving Harvest Sale!
    FREE SHIPPING(48 States)
  5. 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)
  6. Explore Scientific - 14mm 100° Series Argon Purged Waterproof Eyepiece 2"

    Regular Price: $549.99

    You Pay: $419.99

    Thanksgiving Harvest Sale!
    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°

    Thanksgiving Harvest Sale!
    FREE SHIPPING(48 States)
  7. Explore Scientific - 25mm 100° Series Argon Purged Waterproof Eyepiece - 2"

    Regular Price: $849.99

    You Pay: $679.99

    Thanksgiving Harvest Sale!
    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
    Thanksgiving Harvest Sale!
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7 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.