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Eyepieces & Barlows

What is an eyepiece: A telescope collects the light of faint and/or distant objects and forms a fixed-size image of those objects at the telescope’s prime focus. An eyepiece is simply a small microscope that enlarges a portion of that image so you can see more detail.

The importance of good eyepieces: Every photon of light collected by a telescope passes through an eyepiece before it reaches your eye. That light is therefore afflicted by every optical problem in that eyepiece – and the cheaper the eyepiece, the more problems it is likely to have. A $10 eyepiece will make a $2000 telescope perform like a $10 toy. If your telescope’s eyepieces are the simple two-element designs labeled H (Huygenian), R (Ramsden), or SR (symmetrical Ramsden), they are basically toy eyepieces and should be replaced.

Eyepieces are half of your scope’s optical system, and usually the most complex half. They should be at least the same quality as your scope (preferably better). A good telescope won’t improve a poor eyepiece – but a good eyepiece will get the most out of a so-so scope.

What eyepiece should I get first: When buying your first eyepieces, resist the urge to immediately buy the highest powers possible. Very high powers require experienced observers and excellent seeing conditions (dark, clear, steady skies) to get the most from them. Medium power eyepieces, on the other hand, give good images over a much wider range of seeing conditions.

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    $239.95 - $239.95
    $239.95

    Astro-Tech 28mm UWA 82° 2" Eyepiece

    Astro-Tech
    In Stock

    This Astro-Tech 28mm waterproof eyepiece is a substantial 2" eyepiece that will give impressively sharp and contrasty wide field views of nebulas, ...

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    $239.95 - $239.95
    $239.95
    $239.95 - $239.95
    $239.95
  • $40.00 - $40.00
    $40.00
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    $40.00

    Astro-Tech 10.5mm 1.25" PF Eyepiece

    Astro-Tech
    In Stock

    This Astro-Tech 10.5mm PF series eyepiece has excellent eyerelief and a fantastic flat field to further enhance your viewing pleasure. This Astro-T...

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    $40.00

    Astro-Tech 5.5mm 1.25" PF Eyepiece

    Astro-Tech
    In Stock

    This Astro-Tech 5.5mm PF series eyepiece has excellent eyerelief and a fantastic flat field to further enhance your viewing pleasure. This Astro-Te...

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    $40.00
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    $40.00
    $40.00 - $40.00
    $40.00

    Astro-Tech 15.5mm 1.25" PF Eyepiece

    Astro-Tech
    In Stock

    This Astro-Tech 15.5mm PF series eyepiece has excellent eyerelief and a fantastic flat field to further enhance your viewing pleasure. This Astro-T...

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    $40.00
  • $163.00 - $163.00
    $163.00
    $163.00 - $163.00
    $163.00

    TeleVue 32mm Plössl Eyepiece

    TeleVue
    In Stock

    This is a very good low power/wide field eyepiece for capturing galaxy pairs and galaxy clusters, viewing emission and reflection nebulas in their ...

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    $163.00 - $163.00
    $163.00
    $163.00 - $163.00
    $163.00
  • 24mm 68° field argon-purged waterproof 1.25" eyepiece
    $269.99 - $269.99
    $269.99
    $269.99 - $269.99
    $269.99

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

    Explore Scientific
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    This Explore Scientific 24mm argon-purged eyepiece has a wide 68° field that gives impressively sharp and contrasty medium power images with virtua...

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    $269.99 - $269.99
    $269.99
    $269.99 - $269.99
    $269.99
  • $400.00 - $400.00
    $400.00
    $400.00 - $400.00
    $400.00

    TeleVue 27mm 2" Panoptic Eyepiece

    TeleVue
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    An excellent premium-quality low power wide field 2" eyepiece for the serious deep space explorer. The 27mm Panoptic, for example, will give you a ...

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    $400.00 - $400.00
    $400.00
    $400.00 - $400.00
    $400.00
  • 25mm X-Cel LX Series 1.25"
    $99.95 - $99.95
    $99.95
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    $99.95

    Celestron 25mm X-Cel LX Series 1.25" Eyepiece

    Celestron
    In Stock

    This Celestron X-Cel LX 25mm eyepiece uses a new six-element fully-multicoated optical system to provide a wide 60° field of view. It is a good med...

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    $99.95
  • $49.95 - $49.95
    $49.95
    $49.95 - $49.95
    $49.95

    Celestron Omni 32mm 1.25" Plossl Eyepiece 93323

    Celestron
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    This is a good quality fully-multicoated low power eyepiece at a price that's substantially lower than competitive Plössls. Its 50 degree apparent ...

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    $49.95 - $49.95
    $49.95
    $49.95 - $49.95
    $49.95
  • 5mm X-Cel LX Series 1.25"
    $99.95 - $99.95
    $99.95
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    $99.95

    Celestron 5mm X-Cel LX Series 1.25" Eyepiece

    Celestron
    More on the way

    This Celestron X-Cel LX 5mm eyepiece uses a new six-element fully-multicoated optical system to provide a wide 60° field of view. It gives you good...

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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95
  • 9mm X-Cel LX Series 1.25"
    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

    Celestron 9mm X-Cel LX Series 1.25" Eyepiece

    Celestron
    In Stock

    This Celestron X-Cel LX 9mm eyepiece uses a new six-element fully-multicoated optical system to provide a wide 60° field of view. It's a good choic...

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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95
  • 12mm X-Cel LX Series 1.25"
    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

    Celestron 12mm X-Cel LX Series 1.25" Eyepiece

    Celestron
    In Stock

    This medium focal length 12mm Celestron X-Cel LX Series six-element eyepiece is usable for high quality medium to medium high magnification observi...

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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95
  • $439.99 - $439.99
    $439.99
    $439.99 - $439.99
    $439.99

    Explore Scientific 24mm 82° Field Argon-Purged Waterproof 2" Eyepiece

    Explore Scientific
    In Stock

    This 82° field Explore Scientific 24mm 2" argon-purged waterproof eyepiece makes observing feel like you're relaxing in front of a picture window o...

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    $439.99 - $439.99
    $439.99
    $439.99 - $439.99
    $439.99
  • 7mm X-Cel LX Series 1.25"
    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

    Celestron 7mm X-Cel LX Series 1.25" Eyepiece

    Celestron
    In Stock

    This short focal length 7mm Celestron X-Cel LX Series six-element eyepiece is an economical choice for high quality/high magnification observing an...

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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95
  • 18mm X-Cel LX Series 1.25"
    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

    Celestron 18mm X-Cel LX Series 1.25" Eyepiece

    Celestron
    More on the way

    This Celestron X-Cel LX 18mm eyepiece uses a new six-element fully-multicoated optical system to provide a wide 60° field of view. This medium foca...

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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95
  • $49.95 - $49.95
    $49.95
    $49.95 - $49.95
    $49.95

    Celestron Omni 40mm 1.25" Plossl Eyepiece

    Celestron
    In Stock

    This is an economical good quality low power eyepiece with fully-multicoated optics. With a 43 degree field of view it has the widest field possibl...

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    $49.95 - $49.95
    $49.95
    $49.95 - $49.95
    $49.95
  • $269.99 - $269.99
    $269.99
    $269.99 - $269.99
    $269.99

    Explore Scientific 6.5mm 82 Degree 1.25" LER Waterproof Eyepiece

    Explore Scientific
    In Stock

    Explore Scientific 6.5mm 82° 1.25" LER Eyepiece – A Premium Wide-Field Experience with Superior Comfort When it comes to high-performance eyepieces...

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    $269.99 - $269.99
    $269.99
    $269.99 - $269.99
    $269.99
  • $119.99 - $119.99
    $119.99
    $119.99 - $119.99
    $119.99

    Explore Scientific 10mm 52° Series Waterproof Eyepiece

    Explore Scientific
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    Explore Scientific 10mm 52° Series Argon-Purged Eyepiece For astronomers who value precision, contrast, and durability in a compact form, the Explo...

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    $119.99 - $119.99
    $119.99
    $119.99 - $119.99
    $119.99
  • 2.3mm X-Cel LX Series 1.25"
    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

    Celestron 2.3mm X-Cel LX Series 1.25" Eyepiece

    Celestron
    In Stock

    This very short focal length Celestron X-Cel LX 2.3mm eyepiece uses a new six-element fully-multicoated optical system to provide a wide 60° field ...

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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95
  • 15mm 1.25" 82° Luminos
    $129.95 - $129.95
    $129.95
    $129.95 - $129.95
    $129.95

    Celestron 15mm 1.25" 82° Luminos Eyepiece

    Celestron
    More on the way

    This exceptional Celestron 15mm Luminos 1.25" eyepiece uses seven optical elements for optimized performance across a very wide and flat 82° field ...

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    $129.95 - $129.95
    $129.95
    $129.95 - $129.95
    $129.95
  • $129.99 - $129.99
    $129.99
    $129.99 - $129.99
    $129.99

    Explore Scientific 25mm 52° Series Waterproof Eyepiece

    Explore Scientific
    More on the way

    Explore Scientific 25mm 52° Argon-Purged Eyepiece – Exceptional Optical Performance for Deep Sky and Solar System Observing When it comes to select...

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    $129.99 - $129.99
    $129.99
    $129.99 - $129.99
    $129.99
  • $239.95 - $239.95
    $239.95
    $239.95 - $239.95
    $239.95

    Astro-Tech 21mm UWA 82° 2" Eyepiece

    Astro-Tech
    More on the way

    This Astro-Tech 21mm waterproof eyepiece is a substantial 2" eyepiece that will give impressively sharp and contrasty wide field views of nebulas, ...

    View full details
    $239.95 - $239.95
    $239.95
    $239.95 - $239.95
    $239.95
  • $149.95 - $149.95
    $149.95
    $149.95 - $149.95
    $149.95

    Celestron Ultima Edge 15mm 1.25" Eyepiece 93451

    Celestron
    In Stock

    Celestron Ultima Edge 15mm 1.25" Eyepiece The Celestron Ultima Edge 15mm eyepiece delivers high-performance, flat-field optics in a compact 1.25" f...

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    $149.95 - $149.95
    $149.95
    $149.95 - $149.95
    $149.95
  • $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

    Celestron Ultima Edge 10mm 1.25" Eyepiece 93450

    Celestron
    In Stock

    Celestron Ultima Edge 10mm 1.25" EyepieceFlat-field performance and high-power precision in a compact, premium design If you're looking for a high-...

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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

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