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Eyepieces by Barrel Size

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  1. Explore Scientific 9mm 120° Argon Purged Waterproof Eyepiece - 2"

    Explore Scientific - 9mm 120° Argon Purged Waterproof Eyepiece - 2"

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

    ...
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    (48 States)
    Model#: EPWP12009-01
    $899.99

  2. Explore Scientific 25mm 100° Argon Purged Waterproof Eyepiece - 2"

    Explore Scientific - 25mm 100° Series Argon Purged Waterproof Eyepiece - 2"

    Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coatings, Explore Scientific 100° Series™ Argon-Purged Waterproof extreme wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics.

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    (48 States)
    Model#: EPWP10025-01
    $699.99

  3. TeleVue - 17mm Ethos Eyepiece

    TeleVue - 17mm Ethos Eyepiece

    In Stock: Ethos 17mm!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 ... Learn More
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    (48 States)
    Model#: ETH-17.0
    $735.00

  4. TeleVue - 3.7mm Ethos-SX Eyepiece

    TeleVue - 3.7mm Ethos-SX Eyepiece

    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 ... Learn More
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    (48 States)
    Model#: ETH-03.7
    $610.00

  5. Televue - 13mm Ethos Eyepiece

    Televue - 13mm Ethos Eyepiece

    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 ... Learn More
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    (48 States)
    Model#: ETH-13.0
    $610.00

  6. TeleVue - 21mm Ethos Eyepiece

    TeleVue - 21mm Ethos Eyepiece

    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 ... Learn More
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    (48 States)
    Model#: ETH-21.0
    $830.00

  7. TeleVue - 10mm Ethos Eyepiece

    TeleVue - 10mm Ethos Eyepiece

    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 ... Learn More
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    (48 States)
    Model#: ETH-10.0
    $610.00

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