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Eyepieces

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.

 


Telescope Focal Length

Items 61 to 80 of 90 total

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  1. TeleVue - 2.5mm Nagler Type 6 Eyepiece

    TeleVue - 2.5mm Nagler Type 6 Eyepiece

    Nagler  2.5mm Type-6 82° Apparent Field EyepieceThis 2.5mm eyepiece provides a natural 1.4x progression in power from the 3.5mm.  No need to sacrifice field in order to gain sharpness and power ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: EN6-02.5
    $330.00

  2. TeleVue - 20mm Nagler Type 5 Eyepiece

    TeleVue - 20mm Nagler Type 5 Eyepiece

    Nagler  20mm Type-5 82° Apparent Field EyepiecesThe 20mm Type 5 is a compact 1-pound, 2" eyepiece that fills out the eyepiece line and is a worthy successor to the heaviest commercial eyepiece ever produced: the Nagler 20mm Type 2, which ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: EN5-20.0
    $495.00

  3. TeleVue - 24mm Panoptic Eyepiece

    TeleVue - 24mm Panoptic Eyepiece

    This Sky & Telescope "Hot Product for 2003" is designed to produce the largest true field possible in a 1-1/4" eyepiece. (Its 27mm field stop is the same as the 32mm Tele Vue Plssl) ... Learn More
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    (48 States)
    Model#: EPO-24.0
    $330.00

  4. TeleVue - 27mm Panoptic Eyepiece

    TeleVue - 27mm Panoptic Eyepiece

    Housed in a 2" barrel like the 35mm, the 27mm is lighter & smaller. It's perfect for any telescope size, type or speed, where a little more magnification is desired, yet still allows full field viewing with eyeglasses ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: EPO-27.0
    $370.00

  5. TeleVue - 2mm to 4mm Nagler Zoom Eyepiece

    TeleVue - 2mm to 4mm Nagler Zoom Eyepiece

    With click-stops at 2, 2.5, 3, 3.5 & 4mm, this is the ultimate tool for tweaking out the last bit of power that the atmosphere will permit ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: ENZ-0204
    $440.00

  6. 3.5mm Delos Eyepiece by TeleVue

    TeleVue - 3.5mm 72° Delos Eyepiece

    This Tele Vue Delos Eyepiece has a 3.5mm focal length and is presented in a 1.25" format. Continuously adjustable height eyeguard system that can be locked in any position

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: EDL-03.5
    15% Off a Dob's Best Friend!

    Regular Price: $370.00

    Special Price: $315.00

  7. TeleVue - 3.5mm Nagler Type 6 Eyepiece

    TeleVue - 3.5mm Nagler Type 6 Eyepiece

    Nagler  3.5mm Type-6 82° Apparent Field EyepieceThis 3.5mm eyepiece provides a natural 1.4x progression in power from the 5mm and 7mm Naglers.  No need to sacrifice field in order to gain sharpness and power ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: EN6-03.5
    $330.00

  8. TeleVue - 35mm Panoptic Eyepiece

    TeleVue - 35mm Panoptic Eyepiece

    The 35mm has a large true field with plenty of eye relief for eyeglass wearers. When combined with a Paracorr to correct the coma of an f/4.5 Newtonian, performance is spectacular across the 68 degree field

    ...
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    FREE SHIPPING
    (48 States)
    Model#: EPO-35.0
    $415.00

  9. TeleVue - 3mm Radian Eyepiece

    TeleVue - 3mm Radian Eyepiece

    Radian 3mm 60°Apparent Field EyepieceThe Televue 3mm Radian Eyepiece achieves optimum full field sharpness and freedom from distortion.  It incorporates exotic glass types and is fully multi-coated for maximum performance properties

    ...
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    FREE SHIPPING
    (48 States)
    Model#: ERD-03.0
    $290.00

  10. TeleVue - 3mm to 6mm Nagler Zoom Eyepiece

    TeleVue - 3mm to 6mm Nagler Zoom Eyepiece

    THERE HAVE BEEN ZOOM EYEPIECES IN THE PAST, BUT NONE QUITE LIKE THE Tele Vue 3mm-6mm Nagler Zoom. Since the time of Galileo, short-focal-length (hence high-magnification) eyepieces have been notoriously difficult to look through ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: ENZ-0306
    $425.00

  11. 4.5mm Delos Eyepiece by TeleVue

    TeleVue - 4.5mm 72° Delos Eyepiece

    This Tele Vue Delos Eyepiece has a 4.5mm focal length and is presented in a 1.25" format. Continuously adjustable height eyeguard system that can be locked in any position

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: EDL-04.5
    15% Off a Dob's Best Friend!

    Regular Price: $370.00

    Special Price: $315.00

  12. TeleVue - 4mm Radian Eyepiece

    TeleVue - 4mm Radian Eyepiece

    Radian 4mm60°Apparent Field EyepieceThe Televue 4mm Radian Eyepiece achieves optimum full field sharpness and freedom from distortion.  It incorporates exotic glass types and is fully multi-coated for maximum performance properties

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: ERD-04.0

    Regular Price: $290.00

    Special Price: $240.00

  13. TeleVue - 55mm Plossl Eyepiece

    TeleVue - 55mm Plossl Eyepiece

    Plössl  55mm50°Apparent Field EyepieceThe 55mm focal length has the largest true field possible for 2" eyepiece holders at 3 times the true field area of any 1¼" eyepiece ... Learn More
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    (48 States)
    Model#: EPL-55.0
    $255.00

  14. TeleVue - 5mm Nagler Type 6 Eyepiece

    TeleVue - 5mm Nagler Type 6 Eyepiece

    Nagler  5mm Type-6 82° Apparent Field EyepieceThis new 5mm Nagler proves there is no need to sacrifice field in order to gain sharpness and power ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: EN6-05.0
    $330.00

  15. TeleVue - 5mm Radian Eyepiece

    TeleVue - 5mm Radian Eyepiece

    Radian 5mm60°Apparent Field EyepieceThe Televue 5mm Radian Eyepiece achieves optimum full field sharpness and freedom from distortion.  It incorporates exotic glass types and is fully multi-coated for maximum performance properties

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: ERD-05.0

    Regular Price: $290.00

    Special Price: $240.00

  16. Delos 6mm Eyepiece by TeleVue

    TeleVue - 6mm 72° Delos Eyepiece

    This TeleVue Delos Eyepiece has a 6mm focal length and is presented in a 1.25" format. Continuously adjustable height eyeguard system that can be locked in any position

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: EDL-06.0
    15% Off a Dob's Best Friend!

    Regular Price: $370.00

    Special Price: $315.00

  17. TeleVue - 7mm Nagler Type 6 Eyepiece

    TeleVue - 7mm Nagler Type 6 Eyepiece

    Nagler  7mm Type-6 82° Apparent Field EyepieceThis new 7mm Nagler proves there is no need to sacrifice field in order to gain sharpness and power ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: EN6-07.0
    $330.00

  18. 8mm Delos Eyepiece by TeleVue

    TeleVue - 8mm 72° Delos Eyepiece

    This TeleVue Delos Eyepiece has a 8mm focal length and is presented in a 1.25" format. Continuously adjustable height eyeguard system that can be locked in any position

    ...
    Learn More
    FREE SHIPPING
    (48 States)
    Model#: EDL-08.0
    15% Off a Dob's Best Friend!

    Regular Price: $370.00

    Special Price: $315.00

  19. TeleVue - 9mm Nagler Type 6 Eyepiece

    TeleVue - 9mm Nagler Type 6 Eyepiece

    Nagler  9mm Type-6 82° Apparent Field EyepieceThis new 9mm Nagler proves there is no need to sacrifice field in order to gain sharpness and power ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: EN6-09.0
    $330.00

  20. TeleVue - Paracorr Type 2

    TeleVue - Paracorr Type 2

    The Paracorr Type 2 allows separating the optical assembly from ... Learn More
    FREE SHIPPING
    (48 States)
    Model#: VIP-2010
    15% Off a Dob's Best Friend!

    Regular Price: $520.00

    Special Price: $445.00

Items 61 to 80 of 90 total

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