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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. Celestron - 40mm Omni Eyepiece - 1.25"

    Celestron - 40mm Omni Eyepiece - 1.25"

    The 40mm low power Omni eyepiece is a 4 -element premium symmetrical Plossl optical design. Features include blackened lens edges to minimize internal reflection and maximize contrast, multi-layer coating group on each lens surface to maximize light transmission and contrast, and each Omni goes through a two-step anodizing process to prevent reflection from the top eyepiece barrel, unlike most other manufactures who use reflective surfaces.

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    Model#: 93325
    $49.95

  2. Celestron - 4mm Omni Eyepiece - 1.25"

    Celestron - 4mm Omni Eyepiece - 1.25"

    The 4mm high power Omni eyepiece is a 4 -element premium symmetrical Plossl optical design. Features include blackened lens edges to minimize internal reflection and maximize contrast, multi-layer coating group on each lens surface to maximize light transmission and contrast, and each Omni goes through a two-step anodizing process to prevent reflection from the top eyepiece barrel, unlike most other manufactures who use reflective surfaces.

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    Model#: 93316
    $39.95

  3. 93350

    Celestron - 5mm Ultima Series Eyepiece 1-1/4 "

    This is a discontinued item. We recommend the Celestron Ultima LX as a replacement.

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    Model#: 93350
    $72.95

  4. 93421

    Celestron - 5mm X-Cel LX Eyepiece - 1.25"

    The newly enhanced X-Cel LX eyepiece series is what you've been waiting for in a high quality eyepiece for planetary viewing.  With a brand new sleek, robust design and a twist-up eye guard, these eyepieces are especially designed for comfort and ease of use.  They also have a wide 60° field of view and 6-element fully multi-coated optics for magnificent wide field performance.  X-Cel LX eyepieces are parfocal and require little to no focusing when changing from low to high power.

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    Model#: 93421
    $74.95

  5. Celestron - 5mm X-Cel Series Eyepiece - 1.25"

    Celestron - 5mm X-Cel Series Eyepiece - 1.25"

    The 5mm high power X-Cel eyepiece is a 6-element fully multi-coated optical design, the X-Cel utilizes extra low dispersion (ED) glass on its most highly curved surfaces, to minimize chromatic aberration that can hinder sharp planetary views. With a wide 55° apparent field of view, and a large 25mm clear aperture the X-Cel is one of the most comfortable eyepieces to use.

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    Model#: 93387
    $63.95

  6. Celestron - 6mm E-Lux Eyepiece - 1.25"

    Celestron - 6mm E-Lux Eyepiece - 1.25"

    The 6mm high power 1 1/4" E-Lux eyepiece is a 4-element Plössl with features that maximize it's performance at a very economical price.

    Features of this series include fully coated lenses (every air to glass surface is coated with anti-reflective coatings), eyepiece cups to reduce stray light, and each model is threaded for use with eyepiece filters.

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    Model#: 93300
    $34.95

  7. Celestron - 6mm Omni Eyepiece - 1.25"

    Celestron - 6mm Omni Eyepiece - 1.25"

    The 6mm high power Omni eyepiece is a 4 -element premium symmetrical Plossl optical design. Features include blackened lens edges to minimize internal reflection and maximize contrast, multi-layer coating group on each lens surface to maximize light transmission and contrast, and each Omni goes through a two-step anodizing process to prevent reflection from the top eyepiece barrel, unlike most other manufactures who use reflective surfaces.

    Threaded barrels accept 1-1/4" Celestron thread-in filters.

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    Model#: 93317
    $39.95

  8. 93422

    Celestron - 7mm X-Cel LX Eyepiece - 1.25"

    • Wide field of view enhances views of the night sky through a single lens
    • 6-element fully multi-coated optics create sharper images
    • Extendable twist-up eyepieces are easier and more comfortable, especially for eyeglass wearers
    • No slip, rubber grip ring for secure handling, even in moist conditions
    • Parfocal eyepiece require little to no focusing when changing from low to high power
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    Model#: 93422
    $74.95

  9. Celestron - 8-24mm Zoom Eyepiece - 1.25"

    Celestron - 8-24mm Zoom Eyepiece - 1.25"

    • Focal length of 8mm to 24mm
    • Field of view: 40 - 60 degrees
    • Eye relief: 15 - 18mm
    • Fully Multicoated
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    Model#: 93230

    Regular Price: $69.00

    Special Price: $52.26

  10. Celestron - 8mm X-Cel Eyepiece - 1.25"

    Celestron - 8mm X-Cel Eyepiece - 1.25"

    The 8mm high power X-Cel eyepiece is a 6-element fully multi-coated optical design, the X-Cel utilizes extra low dispersion (ED) glass on its most highly curved surfaces, to minimize chromatic aberration that can hinder sharp planetary views. With a wide 55° apparent field of view, and a large 25mm clear aperture the X-Cel is one of the most comfortable eyepieces to use.

    ...
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    Model#: 93388
    $63.95

  11. Celestron - 9mm Omni Eyepiece - 1.25"

    Celestron - 9mm Omni Eyepiece - 1.25"

    The 9mm high power Omni eyepiece is a 4 -element premium symmetrical Plssl optical design ... Learn More
    Model#: 93318
    $39.95

  12. 93423

    Celestron - 9mm X-Cel LX Eyepiece - 1.25"

    • Wide field of view enhances views of the night sky through a single lens
    • 6-element fully multi-coated optics create sharper images
    • Extendable twist-up eyepieces are easier and more comfortable, especially for eyeglass wearers
    • No slip, rubber grip ring for secure handling, even in moist conditions
    • Parfocal eyepiece require little to no focusing when changing from low to high power
    ...
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    Model#: 93423
    $74.95

  13. Celestron - CrossAim Reticle Eyepiece

    Celestron - CrossAim Reticle Eyepiece

    "CrossAim
    • Ideal for Accurate Polar Alignment.
    • Well Suited for Use With Off-Axis Guiders for Centering and Guiding of Stars
    • Adjustable Red LED Light Brightness Control to Illuminate Crosshairs and Preserve Night Vision
    • Double Crosshair Reticle for Accurate Centering and Guiding of Stars
    • Fully Coated Optics for Excellent Light Transmission on Faint Stars
    • Includes Reticle Eyepiece and Illuminator
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    Model#: 93235
    $74.95

  14. Celestron - Nexstar 32mm Plossl Eyepiece - 1.25"

    Celestron - Nexstar 32mm Plossl Eyepiece - 1.25"

     Celestron offers these premium eyepieces at affordable prices, yet they're among the best designed and corrected eyepieces available. They're multicoated (not just fully coated) for enhanced contrast and all are threaded to accept Celestron colored eyepiece filters.

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    Model#: 93314
    $49.95

  15. Celestron - Nexstar 6mm & 13mm Plossl Eyepiece Pair 1.25"

    Celestron - Nexstar 6mm & 13mm Plossl Eyepiece Pair 1.25"

    In a recent Sky & Telescope review, Celestron's Plössl eyepieces were rated as top ranking, and found to outperform many similar, but more expensive eyepieces. An exceptional value! Performance rivals the LV eyepieces.

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    Model#: 93308_93311
    $79.90

  16. Celestron - Nexstar 6mm Plossl Eyepiece - 1.25"

    Celestron - Nexstar 6mm Plossl Eyepiece - 1.25"

    Celestron Nexstar Plossl Eyepiece, 6mm, 1 ... Learn More
    Model#: 93308
    $19.95

  17. Coronado - Cemax 12mm Eyepiece

    Coronado - Cemax 12mm Eyepiece

    Coronado Cemax 12mm Eyepiece, 1.25"Coronado CEMAX 12mm Eyepiece (1.25")- for use with Coronado H-alpha Solar Telescopes and filters ... Learn More
    Model#: CE12

    Regular Price: $129.00

    Special Price: $79.99

  18. Coronado - Cemax 18mm Eyepiece

    Coronado - Cemax 18mm Eyepiece

    Coronado Cemax 18mm Eyepiece, 1.25"Coronado CEMAX 18mm Eyepiece (1.25")- for use with Coronado H-alpha Solar Telescopes and filters ... Learn More
    Model#: CE18

    Regular Price: $129.00

    Special Price: $79.95

  19. Coronado - Cemax 25mm Eyepiece

    Coronado - Cemax 25mm Eyepiece

    Coronado Cemax 25mm Eyepiece, 1.25"Coronado CEMAX 25mm Eyepiece (1.25")- for use with Coronado H-alpha Solar Telescopes and filters ... Learn More
    Model#: CE25

    Regular Price: $129.00

    Special Price: $79.00

  20. Explore Scientific - 14mm 82° Series Nitrogen-Purged Waterproof Eyepiece; Fully Multi-Coated; 1.25-inch O.D.

    Explore Scientific - 14mm 82° Series Nitrogen-Purged Waterproof Eyepiece; Fully Multi-Coated; 1.25-inch O.D.

    14mm 82° Series Nitrogen-Purged Waterproof Eyepiece; Fully Multi-Coated; 2-inch O.D. ... Learn More
    Model#: EPWP8214-00
    Take advantage of this incredible 2013 Spring Promotion Program

    Regular Price: $169.99

    Special Price: $99.99

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