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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

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  1. Explore Scientific - 34mm 68° Argon-Purged Waterproof EMD Coatings Eyepiece - 2"

    Explore Scientific - 34mm 68° Argon-Purged Waterproof EMD Coatings Eyepiece - 2"

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

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    Model#: EPWP6834-01
    $299.99

  2. Lunt 8mm solar eyepiece

    Lunt - 8mm Solar Eyepiece

    Lunt 8mm eyepiece; great for solar observing!

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    Model#: LS8E
    $119.00

  3. Lunt 12mm Solar Eyepiece

    Lunt - 12mm Solar Eyepiece

    Lunt 12mm eyepiece; great for solar observing.

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    Model#: LS12E
    $119.00

  4. 16mm Solar Eyepiece Lunt

    Lunt - 16mm Solar Eyepiece

    Lunt 16mm eyepiece; great for solar observing.

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    Model#: LS16E
    $119.00

  5. 19mm eyepiece lunt

    Lunt - 19mm Solar Eyepiece

    Lunt 19mm eyepiece; great for solar observing.

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    Model#: LS19E
    $119.00

  6. 27mm Lunt Eyepiece

    Lunt - 27mm Solar Eyepiece

    Lunt 27mm eyepiece; great for solar observing.

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    Model#: LS27E
    $119.00

  7. Lunt - Solar Eyepiece Set - 1.25"

    Lunt - Solar Eyepiece Set - 1.25"

    Lunt eyepiece set; great for solar observing! People who have an interest in the planetary objects and love to collect new and exciting gadgets to entertain their hobby of star gazing and Sun observance are always on the lookout to buy a new gadget as soon as it comes out.

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    Model#: LSEPSET
    $499.00

  8. iOptron iE1300 Electronic Eyepiece

    iOptron - iE1300 Electronic Eyepiece

    With the iOptron iE3000 Electronic Eyepiece you can experience astro-video and astrophotography for yourself!

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    Model#: 8429
    $149.00

  9. Vixen - Eyepiece LV8-24mm (1.25")

    Vixen - Eyepiece LV8-24mm (1.25")

    Vixen eyepiece 1.25" LV8-24mm.

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    Model#: 3777
    $199.00

  10. 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

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    Model#: EDL-03.5
    $340.00

  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

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    Model#: EDL-04.5
    $340.00

  12. 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

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    Model#: EDL-08.0
    $340.00

  13. Explore Scientific - 40mm 68° Series Argon-Purged Waterproof Eyepiece - 2"

    Explore Scientific - 40mm 68° Series Argon-Purged Waterproof Eyepiece - 2"

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

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    (48 States)
    Model#: EPWP6840-01
    $369.99

  14. Explore Scientific 68° Series 24mm Argon-Purged Waterproof Eyepiece 1.25"

    Explore Scientific - 24mm 68° Series Argon-Purged Waterproof Eyepiece - 1.25"

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

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    Model#: EPWP6824-01
    $159.99

  15. Celestron - CrossAim Reticle Eyepiece

    Celestron - CrossAim Reticle Eyepiece

    Ideal for Accurate Polar Alignment.

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    Model#: 93235
    $74.95

  16. Celestron - 31mm Luminos Eyepiece - 2"

    Celestron - 31mm Luminos Eyepiece - 2"

    • 82 Degrees–Wide FOV for high and low magnifications
    • Retractable Eyecups– Ultra-low profile for eyeglass wearers
    • Parfocal Eyepiece – Little or no focusing is needed when change from low to high powers
    • Threaded Barrels– Accept 2-inch Celestron thread-in filters
    • Polished and Hard Anodized Aluminum Barrel – Scratch resistant and high end appearance
    • Rubber Gripping Ring – For secure handling and smooth control of eyecup
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    Model#: 93435
    $229.95

  17. Celestron 8-24mm Deluxe Zoom Eyepiece 1.25" and 2"

    Celestron - 8-24mm Deluxe Zoom Eyepiece - 1.25" and 2"

    • Focal lengths: 8mm to 24mm zoom
    • Field of view: 43° - 66°
    • Eye relief: 15 - 20mm
    • Fully multi-coated
    • Works in 2” and 1.25” eyepiece holders
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    (48 States)
    Model#: 93232
    $229.95

  18. EDL-17.3

    TeleVue - 17.3mm 72° Delos Eyepiece

    Tele Vue is pleased to introduce the 17.3mm, Delos eyepieces, the first available focal lengths in a newmid-to-short focal length line of 20mm eye-relief,72° apparent field of view eyepieces.

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    Model#: EDL-17.3
    $340.00

  19. Delos 14mm Eyepiece by TeleVue

    TeleVue - 14mm 72° Delos Eyepiece

    This Tele Vue Delos Eyepiece has a 14mm focal length and is presented in a 1.25" format. Continuously adjustable height eyeguard system that can be locked in any position

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    (48 States)
    Model#: EDL-14.0
    $340.00

  20. 12mm Delos Eyepiece by TeleVue

    TeleVue - 12mm 72° Delos Eyepiece

    This TeleVue Delos Eyepiece has a 12mm focal length and is presented in a 1.25" format.Continuously adjustable height eyeguard system that can be locked in any position

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    Model#: EDL-12.0
    $340.00

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