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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. Canadian Telescopes - 12.5mm Illuminated Plossl Eyepiece

    Canadian Telescopes - 12.5mm Illuminated Plossl Eyepiece

    Ideal for polar alignment and off-axis guiding.  The illuminated double cross lines makes it very easy to center objects.  The brightness is adjustable and the LED illuminated lines can be focused. 

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    Model#: CT24066
    $69.00

  2. Celestron - 10mm E-Lux Eyepiece - 1.25"

    Celestron - 10mm E-Lux Eyepiece - 1.25"

    The 10mm high power 1 1/4" E-Lux eyepiece is a 4-element Plssl with features that maximize it's performance at a very economical price.

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    Model#: 93301
    $34.95

  3. Celestron - 10mm Plossl Reticle Eyepiece

    Celestron - 10mm Plossl Reticle Eyepiece

    This type of reticle pattern allows you to position the guide star in the middle square or at the intersection of two lines, whichever is easier for you. An optional illuminator (60011) is required.

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    Model#: 94169
    $95.95

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

    Celestron - 10mm X-Cel Eyepiece - 1.25"

    The 10mm 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.

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    Model#: 93389
    $63.95

  5. 94171
  6. Celestron - 12.5mm X-Cel Eyepiece - 1.25"

    Celestron - 12.5mm X-Cel Eyepiece - 1.25"

    Every X-Cel eyepiece is parfocal with each other, meaning little or no focusing is needed when changing from low to high power. The X-Cel comes with soft rubber eyecups and a durable plastic case. In addition, if you are an eyeglass wearer, you will enjoy the 20mm eye relief available on each of the X-Cel focal lengths.

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    Model#: 93390
    $63.95

  7. Celestron - 12mm Omni Eyepiece - 1.25"

    Celestron - 12mm Omni Eyepiece - 1.25"

    The 12.5mm medium 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#: 93319
    $39.95

  8. 93424

    Celestron - 12mm X-Cel LX Eyepiece - 1.25"

    X-Cel LX 12 mm Eyepiece - General FeaturesWide field of view enhances views of the night sky through a single lens6-element fully multi-coated optics create sharper images Extendable twist-up eyepieces are easier and more comfortable, especially for

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    Model#: 93424
    $74.95

  9. Celestron - 15mm Omni Eyepiece - 1.25"

    Celestron - 15mm Omni Eyepiece - 1.25"

    The 15mm medium power Omni eyepiece is a 4 -element premium symmetrical Pl�ssl 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#: 93320
    $39.95

  10. Celestron - 18mm X-Cel Eyepiece - 1.25"

    Celestron - 18mm X-Cel Eyepiece - 1.25"

    Every X-Cel eyepiece is parfocal with each other, meaning little or no focusing is needed when changing from low to high power. The X-Cel comes with soft rubber eyecups and a durable plastic case. In addition, if you are an eyeglass wearer, you will enjoy the 20mm eye relief available on each of the X-Cel focal lengths.

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    Model#: 93391
    $63.95

  11. 93425

    Celestron - 18mm 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#: 93425
    $74.95

  12. Celestron - 2.3mm X-Cel Eyepiece - 1.25"

    Celestron - 2.3mm X-Cel Eyepiece - 1.25"

    The 2.3mm 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#: 93386
    $63.95

  13. 93420

    Celestron - 2.3mm 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#: 93420
    $74.95

  14. Celestron - 20mm Omni Eyepiece - 1.25"

    Celestron - 20mm Omni Eyepiece - 1.25"

    The 20mm medium power Omni eyepiece is a 4 -element premium symmetrical Plössl 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#: 93321
    $39.95

  15. Celestron - 25mm Omni Eyepiece - 1.25"

    Celestron - 25mm Omni Eyepiece - 1.25"

    The 25mm medium power Omni eyepiece is a 4 -element premium symmetrical Plössl 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#: 93322
    $39.95

  16. Celestron - 25mm X-Cel Eyepiece - 1.25"

    Celestron - 25mm X-Cel Eyepiece - 1.25"

    The 25mm medium 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 ... Learn More
    Model#: 93393
    $63.95

  17. 93426

    Celestron - 25mm X-Cel LX Eyepiece - 1.25"

    X-Cel LX 25 mm Eyepiece - General FeaturesWide field of view enhances views of the night sky through a single lens6-element fully multi-coated optics create sharper imagesExtendable twist-up eyepieces are easier and more comfortable, especially for

    ...
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    Model#: 93426
    $74.95

  18. Celestron - 32mm E-Lux Eyepiece - 2"

    Celestron - 32mm E-Lux Eyepiece - 2"

    The 2" E-Lux class is the best value 2" eyepieces on the market.

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    Model#: 93335
    $55.95

  19. Celestron - 32mm Omni Eyepiece - 1.25"

    Celestron - 32mm Omni Eyepiece - 1.25"

    The 32mm low power Omni eyepiece is a 4 -element premium symmetrical Plössl 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#: 93323
    $49.95

  20. Celestron - 40mm E-Lux Eyepiece - 2"

    Celestron - 40mm E-Lux Eyepiece - 2"

    The 40mm low power 2" E-Lux is a 3-element fully multicoated optical design (every air to glass surface is coated with several layers of high quality anti-reflective coatings).

    The 2" E-Lux provides a wider field of view and longer eye relief than standard Plössls.

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    Model#: 93336
    $65.95

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