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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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  • 8mm 1.25" Paradigm Dual ED
    $65.00 - $65.00
    $65.00
    $65.00 - $65.00
    $65.00

    Astro-Tech 8mm 1.25" Paradigm Dual ED Eyepiece

    Astro-Tech
    More on the way

    This Astro-Tech 8mm Paradigm Dual ED eyepiece is a logical choice for high quality/high magnification observing with long focal length refractors, ...

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    $65.00 - $65.00
    $65.00
    $65.00 - $65.00
    $65.00
  • Save $20.00 Save $0.00
    $119.95
    $119.95 - $119.95
    $119.95
    $99.95
    $99.95 - $99.95
    $99.95

    Astro-Tech 10mm UWA 82° 1.25" Eyepiece

    Astro-Tech
    In Stock

    This 10mm Astro-Tech 82° field eyepiece is an excellent medium to high power, very wide field eyepiece that will work well with any telescope. This...

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    $119.95
    $119.95 - $119.95
    $119.95
    $99.95
    $99.95 - $99.95
    $99.95
    Save $20.00 Save $0.00
  • $0.00 - $0.00
    $0.00
    $279.95
    $279.95 - $279.95
    $279.95

    Astro-Tech 9mm 100° Field Waterproof 1.25"/2" Eyepiece

    Astro-Tech
    In Stock

    The Astro-Tech 9mm o-ring sealed 1.25"/2" eyepiece combines a high power capability with a 100° apparent field to provide a jaw-dropping observing ...

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    $0.00 - $0.00
    $0.00
    $279.95
    $279.95 - $279.95
    $279.95
  • Save $30.00 Save $0.00
    $299.00
    $299.00 - $299.00
    $299.00
    $269.00
    $269.00 - $269.00
    $269.00

    Pentax 10mm XW Extra Wide Angle Eyepiece

    Pentax
    More on the way

    This short focal length Pentax is a high power eyepiece usable for both terrestrial and astronomical observing. Terrestrially, it is superb for det...

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    $299.00
    $299.00 - $299.00
    $299.00
    $269.00
    $269.00 - $269.00
    $269.00
    Save $30.00 Save $0.00
  • $268.01 - $268.01
    $268.01
    $268.01 - $268.01
    $268.01

    Televue 9mm Delite 62° 1.25" Eyepiece

    TeleVue
    In Stock

    The 9mm 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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    $268.01 - $268.01
    $268.01
    $268.01 - $268.01
    $268.01
  • $618.00 - $618.00
    $618.00
    $618.00 - $618.00
    $618.00

    TeleVue 8mm 1.25"/2" 100° Field Ethos Eyepiece

    TeleVue
    More on the way

    The TeleVue 8mm Ethos eyepiece raises the bar for shorter focal length eyepieces. It expands the apparent field of view to an astonishing 100°, whi...

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    $618.00 - $618.00
    $618.00
    $618.00 - $618.00
    $618.00
  • $334.01 - $334.01
    $334.01
    $334.01 - $334.01
    $334.01

    TeleVue 9mm Nagler Type 6 Eyepiece

    TeleVue
    In Stock

    This is an exceptional short focal length ultra wide field eyepiece designed as an upgrade to the original and highly-prized 9mm Nagler for high ma...

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    $334.01 - $334.01
    $334.01
    $334.01 - $334.01
    $334.01
  • 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
  • $387.00 - $387.00
    $387.00
    $387.00 - $387.00
    $387.00

    TeleVue 10mm 1.25" 72° Field Delos Eyepiece

    TeleVue
    More on the way

    The 10mm TeleVue Delos is a "do-it-all" eyepiece designed for medium high power/high contrast solar system and deep space observing with all telesc...

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    $387.00 - $387.00
    $387.00
    $387.00 - $387.00
    $387.00
  • 8mm 1.25" 72° field Delos
    $387.00 - $387.00
    $387.00
    $387.00 - $387.00
    $387.00

    TeleVue 8mm 1.25" 72° Field Delos Eyepiece

    TeleVue
    In Stock

    The 8mm TeleVue Delos puts the performance of the original ground-breaking TeleVue 9mm Ethos eyepiece - high contrast, a neutral color balance, and...

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    $387.00 - $387.00
    $387.00
    $387.00 - $387.00
    $387.00
  • $658.00 - $658.00
    $658.00
    $658.00 - $658.00
    $658.00

    TeleVue 10mm 1.25"/2" 100° Field Ethos Eyepiece

    TeleVue
    In Stock

    The 10mm TeleVue Ethos is a "do-it-all" eyepiece that is perfect for all telescopes that can utilize this focal length. And, as it fills the hole b...

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    $658.00 - $658.00
    $658.00
    $658.00 - $658.00
    $658.00
  • Explore Scientific 62° 9mm 1.25" Waterproof Eyepiece
    Save $40.05 Save $0.00
    $149.99
    $149.99 - $149.99
    $149.99
    $109.94
    $109.94 - $109.94
    $109.94

    Explore Scientific 9mm 62° 1.25" Waterproof Eyepiece

    Explore Scientific
    More on the way

    Explore Scientific Waterproof Eyepieces - Comfort, Quality, Value. The Explore Scientific 62° Series™ eyepieces are excellent flat-field multi-elem...

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    $149.99
    $149.99 - $149.99
    $149.99
    $109.94
    $109.94 - $109.94
    $109.94
    Save $40.05 Save $0.00
  • $101.00 - $101.00
    $101.00
    $101.00 - $101.00
    $101.00

    TeleVue 8mm Plössl Eyepiece

    TeleVue
    In Stock

    This is a very good medium high to high power eyepiece (the power depends on the focal length of your scope) for observing lunar and planetary deta...

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    $101.00 - $101.00
    $101.00
    $101.00 - $101.00
    $101.00
  • 9mm 100° field argon-purged waterproof 2" eyepiece
    Save $100.05 Save $0.00
    $579.99
    $579.99 - $579.99
    $579.99
    $479.94
    $479.94 - $479.94
    $479.94

    Explore Scientific 9mm 100° Field Argon-Purged Waterproof 2" Eyepiece

    Explore Scientific
    In Stock

    The Explore Scientific 9mm argon-purged waterproof 2" eyepiece combines a high power capability with a 100° apparent field to provide a jaw-droppin...

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    $579.99
    $579.99 - $579.99
    $579.99
    $479.94
    $479.94 - $479.94
    $479.94
    Save $100.05 Save $0.00
  • Save $40.05 Save $0.00
    $119.99
    $119.99 - $119.99
    $119.99
    $79.94
    $79.94 - $79.94
    $79.94

    Explore Scientific 10mm 52° Series Waterproof Eyepiece

    Explore Scientific
    In Stock

    Looking for something out of the ordinary for your next eyepiece?  The Explore Scientific 52° series is a strong contender for necessary addition t...

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    $119.99
    $119.99 - $119.99
    $119.99
    $79.94
    $79.94 - $79.94
    $79.94
    Save $40.05 Save $0.00
  • 10mm 1.25" 82° Luminos
    $129.95 - $129.95
    $129.95
    $129.95 - $129.95
    $129.95

    Celestron 10mm 1.25" 82° Luminos Eyepiece

    Celestron
    In Stock

    This exceptional Celestron 10mm Luminos ultra wide field 1.25" eyepiece uses seven optical elements for optimized performance across a very wide an...

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    $129.95 - $129.95
    $129.95
    $129.95 - $129.95
    $129.95
  • $29.95 - $29.95
    $29.95
    $29.95 - $29.95
    $29.95

    Celestron Omni 9mm 1.25" Plossl Eyepiece 93318

    Celestron
    In Stock

    This fully-multicoated Plössl is a good quality medium high to high power eyepiece at a sensibly low price. It's designed for high magnification lu...

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    $29.95 - $29.95
    $29.95
    $29.95 - $29.95
    $29.95
  • Questar 8mm Brandon
    $300.00 - $300.00
    $300.00
    $300.00 - $300.00
    $300.00

    Questar 8mm Brandon Eyepiece

    Questar
    More on the way

    This is an excellent high power eyepiece for observing lunar and planetary detail, resolving globular clusters, picking up small planetary nebulas ...

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    $300.00 - $300.00
    $300.00
    $300.00 - $300.00
    $300.00
  • 9mm 120° field argon-purged waterproof 2" eyepiece
    $1,299.99 - $1,299.99
    $1,299.99
    $1,299.99 - $1,299.99
    $1,299.99

    Explore Scientific 9mm 120° field argon-purged waterproof 2" eyepiece

    Explore Scientific
    More on the way

    A first from Explore Scientific, this 2" 9mm deep sky eyepiece has an immense 120° field that seems to make your telescope disappear and plunge you...

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    $1,299.99 - $1,299.99
    $1,299.99
    $1,299.99 - $1,299.99
    $1,299.99
  • 8mm Brandon "flat top"
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

    Vernonscope 8mm Brandon Flat Top Eyepiece

    Vernonscope
    More on the way

    The 8mm Vernonscope Brandon "flat top" eyepiece is designed for high power use with any telescope type, at focal ratios f/7 and above. It provides ...

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    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00
  • 8mm Brandon
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

    Vernonscope 8mm Brandon Eyepiece

    Vernonscope
    More on the way

    The 8mm Vernonscope Brandon eyepiece is designed for high power use with any telescope type, at focal ratios f/7 and above. It provides highly deta...

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    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00
  • Save $50.05 Save $0.00
    $269.99
    $269.99 - $269.99
    $269.99
    $219.94
    $219.94 - $219.94
    $219.94

    Explore Scientific 8.5mm LER 82° Field Argon-Purged Waterproof 1.25" Eyepiece

    Explore Scientific
    In Stock

    This 8.5mm Explore Scientific LER 82° field argon-purged waterproof eyepiece is the right focal length to give you very useful exit pupil sizes and...

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    $269.99
    $269.99 - $269.99
    $269.99
    $219.94
    $219.94 - $219.94
    $219.94
    Save $50.05 Save $0.00

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