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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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  • Original price $59.95 - Original price $59.95
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    Astro-Tech 24mm Illuminated Reticle Eyepiece

    Astro-Tech
    In Stock

    The economical Astro-Tech #AT24IL illuminated reticle 1.25" eyepiece helps you align your go-to telescope on the sky, check your polar alignment fo...

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    Original price $59.95 - Original price $59.95
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    $59.95
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    Current price $59.95
  • Original price $351.01 - Original price $351.01
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    $351.01
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    Current price $351.01

    TeleVue 24mm Panoptic Eyepiece

    TeleVue
    More on the way

    This is one of the most popular premium-quality 1.25" low to medium power wide field eyepieces. An ED glass element provides high contrast for obse...

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    Original price $351.01 - Original price $351.01
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  • Original price $269.99 - Original price $269.99
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    Current price $269.99

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

    Explore Scientific
    In Stock

    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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    Original price $269.99 - Original price $269.99
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    Current price $269.99
  • Original price $487.00 - Original price $487.00
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    Current price $487.00

    TeleVue 22mm 2" Nagler Type 4 Eyepiece

    TeleVue
    More on the way

    The TeleVue 2" 22mm Nagler Type 4 replaces the 20mm Nagler Type 2, considered by many to be the finest eyepiece ever made. How do you improve on a ...

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    Original price $487.00 - Original price $487.00
    Original price
    $487.00
    $487.00 - $487.00
    Current price $487.00
  • Original price $439.99 - Original price $439.99
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    $439.99
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    Current price $439.99

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

    Explore Scientific
    More on the way

    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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    Original price $439.99 - Original price $439.99
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    $439.99 - $439.99
    Current price $439.99
  • Original price $300.00 - Original price $300.00
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    Current price $300.00

    Questar 24mm Brandon Eyepiece

    Questar
    More on the way

    This is an excellent medium to low power eyepiece (53x and 80x in the 3.5" Questar) for lunar observing, resolving globular clusters, viewing the m...

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    Original price $300.00 - Original price $300.00
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    Current price $300.00
  • Original price $279.00 - Original price $279.00
    Original price
    $279.00
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    Current price $279.00

    Vernonscope 24mm Brandon "Flat Top" Eyepiece

    Vernonscope
    More on the way

    The 24mm Vernonscope Brandon "flat top" eyepiece is designed for nigh-perfect medium power deep sky observing with any telescope type, at focal rat...

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    Original price $279.00 - Original price $279.00
    Original price
    $279.00
    $279.00 - $279.00
    Current price $279.00
  • Original price $279.00 - Original price $279.00
    Original price
    $279.00
    $279.00 - $279.00
    Current price $279.00

    Vernonscope 24mm Brandon Eyepiece

    Vernonscope
    More on the way

    The 24mm Vernonscope Brandon eyepiece is designed for nigh-perfect medium power deep sky observing with any telescope type, at focal ratios f/7 and...

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    Original price $279.00 - Original price $279.00
    Original price
    $279.00
    $279.00 - $279.00
    Current price $279.00
  • Original price $239.95 - Original price $239.95
    Original price
    $239.95
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    Current price $239.95

    Celestron 23mm 2" 82° Luminos Eyepiece

    Celestron
    In Stock

    This 2" Celestron Luminos 23mm eyepiece is a six-lens design with a very wide 82° field and minimal field curvature. This makes it particularly wel...

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    Original price $239.95 - Original price $239.95
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    $239.95
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    Current price $239.95
  • Original price $499.95
    Original price $499.95 - Original price $499.95
    Original price $499.95
    Current price $449.00
    $449.00 - $449.00
    Current price $449.00

    Pentax 23mm XW Extra Wide Angle Eyepiece

    Pentax
    In Stock

    This medium focal length Pentax provides sharp and very wide field images for both terrestrial and astronomical observing. Terrestrially, it is an ...

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    Original price $499.95
    Original price $499.95 - Original price $499.95
    Original price $499.95
    Current price $449.00
    $449.00 - $449.00
    Current price $449.00
    Save $50.95 Save $0.00

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