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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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  • 18mm 1.25" Paradigm Dual ED
    $65.00 - $65.00
    $65.00
    $65.00 - $65.00
    $65.00

    Astro-Tech 18mm 1.25" Paradigm Dual ED Eyepiece

    Astro-Tech
    In Stock

    This Astro-Tech 18mm Paradigm Dual ED is an excellent medium to medium low power eyepiece for lunar observing, encompassing globular clusters, pick...

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    $65.00 - $65.00
    $65.00
    $65.00 - $65.00
    $65.00
  • $40.00 - $40.00
    $40.00
    $40.00 - $40.00
    $40.00

    Astro-Tech 19mm 1.25" PF Eyepiece

    Astro-Tech
    In Stock

    This Astro-Tech 19mm PF series eyepiece has excellent eyerelief and a fantastic flat field to further enhance your viewing pleasure. So, I know som...

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    $40.00 - $40.00
    $40.00
    $40.00 - $40.00
    $40.00
  • $269.00 - $269.00
    $269.00
    $269.00 - $269.00
    $269.00

    Televue 18.2mm Delite 62° 1.25" Eyepiece

    TeleVue
    More on the way

    The 18.2mm TeleVue DeLite eyepiece is a lighter, more compact, less expensive, 62° field/20mm eye relief version of the famed TeleVue Delos eyepiec...

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    $269.00 - $269.00
    $269.00
    $269.00 - $269.00
    $269.00
  • $273.01 - $273.01
    $273.01
    $273.01 - $273.01
    $273.01

    TeleVue 19mm Panoptic Eyepiece

    TeleVue
    More on the way

    An excellent premium-quality medium power wide field eyepiece.  The 19mm Panoptic, for example, will give you about a 1.13 degree field at 60x with...

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    $273.01 - $273.01
    $273.01
    $273.01 - $273.01
    $273.01
  • 18mm 82° field argon-purged waterproof 2" eyepiece
    Save $100.05 Save $0.00
    $319.99
    $319.99 - $319.99
    $319.99
    $219.94
    $219.94 - $219.94
    $219.94

    Explore Scientific 18mm 82° Field Argon-Purged Waterproof 2" Eyepiece

    Explore Scientific
    In Stock

    This 82° field Explore Scientific 18mm 2" argon-purged waterproof eyepiece makes observing with many telescopes feel like you're taking a stroll th...

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    $319.99
    $319.99 - $319.99
    $319.99
    $219.94
    $219.94 - $219.94
    $219.94
    Save $100.05 Save $0.00
  • $387.00 - $387.00
    $387.00
    $387.00 - $387.00
    $387.00

    TeleVue 17.3mm 1.25" 72° Field Delos Eyepiece

    TeleVue
    More on the way

    The 17.3mm TeleVue Delos is a "do-it-all" eyepiece designed for medium power/high contrast solar system and deep space observing with all telescope...

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    $387.00 - $387.00
    $387.00
    $387.00 - $387.00
    $387.00
  • 17mm 92° field argon-purged waterproof 2" eyepiece
    $799.99 - $799.99
    $799.99
    $799.99 - $799.99
    $799.99

    Explore Scientific 17mm 92° Field Argon-Purged Waterproof 2" Eyepiece

    Explore Scientific
    More on the way

    You may be startled at the amazingly wide expanse of inky black sky that greets you when you first look into the 92° field of this Explore Scientif...

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    $799.99 - $799.99
    $799.99
    $799.99 - $799.99
    $799.99
  • 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
    In Stock

    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
  • $794.01 - $794.01
    $794.01
    $794.01 - $794.01
    $794.01

    TeleVue 17mm 2" 100° Field Ethos Eyepiece

    TeleVue
    In Stock

    The 17mm TeleVue Ethos 100° field eyepiece is designed for no-holds-barred medium power deep space use with telescopes having focal ratios down to ...

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    $794.01 - $794.01
    $794.01
    $794.01 - $794.01
    $794.01
  • 19mm 2" 82° Luminos
    $189.95 - $189.95
    $189.95
    $189.95 - $189.95
    $189.95

    Celestron 19mm 2" 82° Luminos Eyepiece

    Celestron
    In Stock

    This exceptional Celestron 19mm Luminos ultra wide field 2" eyepiece uses six optical elements for optimized performance across a very wide and fla...

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    $189.95 - $189.95
    $189.95
    $189.95 - $189.95
    $189.95
  • Save $50.95 Save $0.00
    $479.95
    $479.95 - $479.95
    $479.95
    $429.00
    $429.00 - $429.00
    $429.00

    Pentax 16.5mm XW Extra Wide Angle Eyepiece

    Pentax
    More on the way

    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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    $479.95
    $479.95 - $479.95
    $479.95
    $429.00
    $429.00 - $429.00
    $429.00
    Save $50.95 Save $0.00
  • $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95

    Celestron Ultima Edge 18mm 1.25" Eyepiece 93452

    Celestron
    More on the way

    Highlights 18mm parfocal Ultra Flat Field eyepiece designed for 1.25” focusers Incredibly crisp views from center to edge of field Fully multi-coa...

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    $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95
  • $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

    Celestron Ultima Edge 10mm 1.25" Eyepiece 93450

    Celestron
    More on the way

    Highlights 10mm parfocal Ultra Flat Field eyepiece designed for 1.25” focusers Incredibly crisp views from center to edge of field Fully multi-coa...

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

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