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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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  • $69.95 - $69.95
    $69.95
    $69.95 - $69.95
    $69.95

    Astro-Tech 15mm 1.25" Paradigm Dual ED Eyepiece

    Astro-Tech
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    This Astro-Tech 15mm Paradigm Dual ED eyepiece gives you the outstanding medium power performance of a high-priced eyepiece at a price that will ma...

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    $69.95 - $69.95
    $69.95
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    $69.95
  • Save $23.99 Save $0.00
    $119.95
    $119.95 - $119.95
    $119.95
    $95.96
    $95.96 - $95.96
    $95.96

    Astro-Tech 16mm UWA 82° 1.25" Eyepiece

    Astro-Tech
    In Stock

    Sixteen millimeters is the all-rounder focal length in a 1.25" barrel. In a 10-inch f/5 Dob, it gives you 78x — high enough to darken the sky backg...

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    $95.96
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    $95.96
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  • $40.00 - $40.00
    $40.00
    $40.00 - $40.00
    $40.00

    Astro-Tech 15.5mm 1.25" PF Eyepiece

    Astro-Tech
    In Stock

    You've been observing with the stock 25mm eyepiece for a few months. You know the Orion Nebula by heart at low power. But you've noticed that when ...

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    $40.00 - $40.00
    $40.00
    $40.00 - $40.00
    $40.00
  • 16mm 68° field argon-purged waterproof 1.25" eyepiece
    Save $110.99 Save $0.00
    $219.99
    $219.99 - $219.99
    $219.99
    $109.00
    $109.00 - $109.00
    $109.00

    Explore Scientific 16mm 68° Field Argon-Purged Waterproof 1.25" Eyepiece

    Explore Scientific
    In Stock

    This Explore Scientific 16mm argon-purged eyepiece is a truly fine medium power eyepiece with a substantial 68° field of view that can provide a co...

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    $219.99
    $219.99 - $219.99
    $219.99
    $109.00
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    $109.00
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  • Save $90.99 Save $0.00
    $229.99
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    $229.99
    $139.00
    $139.00 - $139.00
    $139.00

    Explore Scientific 14mm 82° Field Argon-Purged Waterproof 1.25" Eyepiece

    Explore Scientific
    More on the way

    This medium power 14mm Explore Scientific 82° field argon-purged eyepiece will show you surprisingly wide deep space panoramas with any type or foc...

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    $139.00
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    $139.00
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    $679.99
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    $679.99
    $349.00
    $349.00 - $349.00
    $349.00

    Explore Scientific 14mm 100° Field Argon-Purged Waterproof 2" Eyepiece

    Explore Scientific
    In Stock

    The 100° apparent field of the Explore Scientific 14mm argon-purged waterproof 2" eyepiece provides incredible maximum field/medium power observing...

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    $679.99
    $349.00
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    $349.00
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  • Tele Vue 16mm Nagler Type 5 eyepiece
    $418.00 - $418.00
    $418.00
    $418.00 - $418.00
    $418.00

    TeleVue 16mm Nagler Type 5 Eyepiece

    TeleVue
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    Tele Vue 16mm Nagler Type 5 Eyepiece — The Goldilocks Wide-Field Performer There are eyepieces that impress on paper, and there are eyepieces that ...

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    $418.00 - $418.00
    $418.00
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    $418.00
  • $305.00 - $305.00
    $305.00
    $305.00 - $305.00
    $305.00

    TeleVue 15mm Delite 62º 1.25” Eyepiece

    TeleVue
    In Stock

    The 15mm TeleVue DeLite eyepiece is a lighter, more compact, less expensive, 62° field/20mm eye relief version of the famed TeleVue Delos eyepieces...

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    $305.00 - $305.00
    $305.00
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    $305.00
  • $115.00 - $115.00
    $115.00
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    $115.00

    TeleVue 15mm Plössl Eyepiece

    TeleVue
    In Stock

    This is a very good medium power eyepiece for lunar observing, resolving globular clusters, picking up detail in the more compact emission and refl...

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    $115.00 - $115.00
    $115.00
    $115.00 - $115.00
    $115.00
  • 14mm 1.25" 72° field Delos
    $438.00 - $438.00
    $438.00
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    $438.00

    TeleVue 14mm 1.25" 72° Field Delos Eyepiece

    TeleVue
    In Stock

    The 14mm TeleVue Delos puts the optical virtues of a TeleVue Ethos eyepiece - high contrast, a neutral color balance, and full field sharpness - in...

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    $438.00 - $438.00
    $438.00
    $438.00 - $438.00
    $438.00
  • Save $60.99 Save $0.00
    $119.99
    $119.99 - $119.99
    $119.99
    $59.00
    $59.00 - $59.00
    $59.00

    Explore Scientific 15mm 52° Series Waterproof Eyepiece

    Explore Scientific
    In Stock

    Explore Scientific 15mm 52° Argon-Purged Eyepiece For amateur and experienced astronomers alike, the Explore Scientific 15mm 52° Series Eyepiece is...

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    $119.99
    $59.00
    $59.00 - $59.00
    $59.00
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  • $684.00 - $684.00
    $684.00
    $684.00 - $684.00
    $684.00

    Tele Vue 14mm Nagler Type 7 Eyepiece 2"

    TeleVue
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    Nagler Type 7 Eyepieces – The Next Evolution in Immersive Astronomy   The Tele Vue Nagler Type 7 eyepiece series is the newest evolution in the leg...

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    $684.00 - $684.00
    $684.00
    $684.00 - $684.00
    $684.00
  • Explore Scientific 62° 14mm 1.25" Waterproof Eyepiece
    Save $70.99 Save $0.00
    $149.99
    $149.99 - $149.99
    $149.99
    $79.00
    $79.00 - $79.00
    $79.00

    Explore Scientific 62° 14mm 1.25" Waterproof Eyepiece

    Explore Scientific
    More on the way

    Explore Scientific 14mm 62° Series 1.25" Waterproof Eyepiece The Explore Scientific 14mm 62° Series eyepiece is an excellent choice for amateur and...

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    $149.99 - $149.99
    $149.99
    $79.00
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    $79.00
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  • Save $130.99 Save $0.00
    $269.99
    $269.99 - $269.99
    $269.99
    $139.00
    $139.00 - $139.00
    $139.00

    Explore Scientific 4.5mm 82 Degree 1.25" LER Waterproof Eyepiece

    Explore Scientific
    In Stock

    Explore Scientific 4.5mm 82° 1.25" LER Eyepiece For astronomers looking to push their telescope to the limits of magnification while maintaining a ...

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    $269.99
    $269.99 - $269.99
    $269.99
    $139.00
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    $139.00
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  • $31.95 - $31.95
    $31.95
    $31.95 - $31.95
    $31.95

    Celestron Omni 15mm 1.25" Plossl Eyepiece 93320

    Celestron
    More on the way

     This is a good quality medium power fully-multicoated eyepiece at a very economical price for the astronomer on a budget. It's designed for lunar ...

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    $31.95 - $31.95
    $31.95
    $31.95 - $31.95
    $31.95
  • $346.00 - $346.00
    $346.00
    $346.00 - $346.00
    $346.00

    Pentax 14mm XW Extra Wide Angle Eyepiece

    Pentax
    In Stock

    This medium focal length Pentax is a dual-purpose eyepiece for both terrestrial and astronomical observing. Terrestrially, it is an excellent moder...

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    $346.00 - $346.00
    $346.00
    $346.00 - $346.00
    $346.00
  • 15mm 1.25" 82° Luminos
    $139.95 - $139.95
    $139.95
    $139.95 - $139.95
    $139.95

    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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    $139.95 - $139.95
    $139.95
    $139.95 - $139.95
    $139.95
  • 16mm Brandon
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

    Vernonscope 16mm Brandon Eyepiece

    Vernonscope
    More on the way

    The 16mm Vernonscope Brandon eyepiece is designed for medium power high contrast/dark sky background use with any telescope type, at focal ratios f...

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    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00
  • 16mm Brandon "flat top"
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

    Vernonscope 16mm Brandon "Flat Top" Eyepiece

    Vernonscope
    More on the way

    The 16mm Vernonscope Brandon "flat top" eyepiece is designed for medium power high contrast/dark sky background use with any telescope type, at foc...

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    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00
  • Save $16.35 Save $0.00
    $109.00
    $109.00 - $109.00
    $109.00
    $92.65
    $92.65 - $92.65
    $92.65

    Sky Rover 15mm 65° Ultra Flat Field Eyepiece NEAF DEMO

    Sky Rover
    In Stock

    The 15mm focal length is where observing divides into two worlds: low enough to give you genuine context and field of view, high enough to show rea...

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    $109.00
    $109.00 - $109.00
    $109.00
    $92.65
    $92.65 - $92.65
    $92.65
    Save $16.35 Save $0.00
  • $109.00 - $109.00
    $109.00
    $109.00 - $109.00
    $109.00

    Sky Rover 15mm 65° Ultra Flat Field Eyepiece

    Sky Rover
    In Stock

    The 15mm focal length is where observing divides into two worlds: low enough to give you genuine context and field of view, high enough to show rea...

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    $109.00 - $109.00
    $109.00
    $109.00 - $109.00
    $109.00
  • $40.00 - $40.00
    $40.00
    $40.00 - $40.00
    $40.00

    Sky Rover 15.5mm 65° Premium Flat Field Eyepiece

    Sky Rover
    More on the way

    You've been observing with the stock 25mm eyepiece for a few months. You know the Orion Nebula at low power. But when you try to push in on a globu...

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    $40.00 - $40.00
    $40.00
    $40.00 - $40.00
    $40.00
  • Celestron Ultima Edge 15mm 1.25-inch eyepiece with 70-degree apparent field of view
    $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95

    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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    $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95

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