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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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  • $283.00 - $283.00
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    Televue 4mm Delite 62º 1.25” Eyepiece EDE-04.0

    TeleVue
    In Stock

    The TeleVue 4mm 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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    $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00
  • Sold out
    $89.99
    $89.99 - $89.99
    $89.99
    $49.99
    $49.99 - $49.99
    $49.99

    Explore Scientific 3mm 52° Series Waterproof Eyepiece

    Explore Scientific
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    Explore Scientific 3mm 52° Series Argon-Purged Eyepiece If you're looking for an ultra-high magnification eyepiece to push your telescope to its li...

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    $89.99
    $89.99 - $89.99
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    $49.99
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  • 5mm X-Cel LX Series 1.25"
    $109.95 - $109.95
    $109.95
    $109.95 - $109.95
    $109.95

    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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    $109.95 - $109.95
    $109.95
    $109.95 - $109.95
    $109.95
  • 8.8mm 82° field argon-purged waterproof 1.25" eyepiece
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    $229.99 - $229.99
    $229.99
    $229.99 - $229.99
    $229.99

    Explore Scientific 8.8mm 82° Field Argon-Purged Waterproof 1.25" Eyepiece

    Explore Scientific
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    This Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale. This 8.8mm Explore Scientific 82° f...

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  • $407.00 - $407.00
    $407.00
    $407.00 - $407.00
    $407.00

    TeleVue 10mm 1.25" 72° Field Delos Eyepiece

    TeleVue
    In Stock

    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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    $407.00 - $407.00
    $407.00
    $407.00 - $407.00
    $407.00
  • $651.00 - $651.00
    $651.00
    $651.00 - $651.00
    $651.00

    TeleVue 6mm 1.25"/2" 100° Field Ethos Eyepiece

    TeleVue
    In Stock

    Just like the 8mm TeleVue Ethos before it, the TeleVue 6mm Ethos eyepiece once again raises the bar for shorter focal length eyepieces. It expands ...

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    $651.00 - $651.00
    $651.00
    $651.00 - $651.00
    $651.00
  • 9mm X-Cel LX Series 1.25"
    $109.95 - $109.95
    $109.95
    $109.95 - $109.95
    $109.95

    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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    $109.95 - $109.95
    $109.95
    $109.95 - $109.95
    $109.95
  • Explore Scientific 62° 5.5mm 1.25" Waterproof Eyepiece
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    $149.99
    $149.99 - $149.99
    $149.99
    $99.99
    $99.99 - $99.99
    $99.99

    Explore Scientific 5.5mm 62° 1.25" Waterproof Eyepiece

    Explore Scientific
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    Explore Scientific 5.5mm 62° Series 1.25" Waterproof Eyepiece If you’re looking to pull in crisp planetary detail, split tight double stars, or ta...

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    $149.99
    $149.99 - $149.99
    $149.99
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  • Sold out
    $229.99 - $229.99
    $229.99
    $229.99 - $229.99
    $229.99

    Explore Scientific 4.7mm 82° Field Argon-Purged Waterproof 1.25" Eyepiece

    Explore Scientific
    Sold Out

    This Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale. This 4.7mm Explore Scientific 82° f...

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    $229.99 - $229.99
    $229.99
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    $229.99
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  • $607.00 - $607.00
    $607.00
    $607.00 - $607.00
    $607.00

    TeleVue 41mm 2" Panoptic Eyepiece

    TeleVue
    In Stock

    This is a premium-quality wide field 2" eyepiece for the serious deep space explorer. Because of its long focal length, it is at its best with tele...

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    $607.00 - $607.00
    $607.00
    $607.00 - $607.00
    $607.00
  • Sold out
    $119.99
    $119.99 - $119.99
    $119.99
    $49.99
    $49.99 - $49.99
    $49.99

    Explore Scientific 6.5mm 52° Series Waterproof Eyepiece

    Explore Scientific
    Sold Out

    Explore Scientific 6.5mm 52° Argon-Purged Waterproof Eyepiece A high-quality eyepiece is one of the best investments you can make in your telescope...

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    $119.99
    $119.99 - $119.99
    $119.99
    $49.99
    $49.99 - $49.99
    $49.99
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  • $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00

    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...

    View full details
    $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00
  • 6.7mm 82° field argon-purged waterproof 1.25" eyepiece
    Sold out
    $229.99 - $229.99
    $229.99
    $229.99 - $229.99
    $229.99

    Explore Scientific 6.7mm 82° Field Argon-Purged Waterproof 1.25" Eyepiece

    Explore Scientific
    Sold Out

    This Product Has Been Discontinued And This Is Here for Informational Purposes Only. It Is No Longer For  Sale. This high power 6.7mm Explore Scien...

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    $229.99 - $229.99
    $229.99
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    $229.99
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  • 28mm 68° field argon-purged waterproof 2" eyepiece
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    $299.99
    $299.99 - $299.99
    $299.99
    $179.99
    $179.99 - $179.99
    $179.99

    Explore Scientific 28mm 68° Field Argon-Purged Waterproof 2" Eyepiece

    Explore Scientific
    Sold Out

    This Explore Scientific 28mm argon-purged is a substantial 2" eyepiece that gives impressively sharp and contrasty wide field views of nebulas, com...

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    $299.99
    $299.99 - $299.99
    $299.99
    $179.99
    $179.99 - $179.99
    $179.99
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  • CrossAim 12.5mm dual crosshair Plössl
    $104.95 - $104.95
    $104.95
    $104.95 - $104.95
    $104.95

    Celestron Crossaim 12.5mm Dual Crosshair Plössl Eyepiece 93235

    Celestron
    More on the way

    This Celestron "CrossAim" 12.5mm illuminated reticle eyepiece has dual crosshairs for use with any make or model telescope and/or off-axis guider. ...

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    $104.95 - $104.95
    $104.95
    $104.95 - $104.95
    $104.95
  • $451.00 - $451.00
    $451.00
    $451.00 - $451.00
    $451.00

    TeleVue 35mm 2" Panoptic Eyepiece

    TeleVue
    In Stock

    An excellent and physically-impressive premium-quality low power wide field 2" eyepiece for the serious deep space explorer. The Tele Vue 35mm Pano...

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    $451.00 - $451.00
    $451.00
    $451.00 - $451.00
    $451.00
  • Save $80.00 Save $0.00
    $149.99
    $149.99 - $149.99
    $149.99
    $69.99
    $69.99 - $69.99
    $69.99

    Explore Scientific 30mm 52° Series Waterproof Eyepiece

    Explore Scientific
    In Stock

    Explore Scientific 30mm 52° Series Argon-Purged Waterproof Eyepiece The Explore Scientific 30mm 52° Series eyepiece offers an exceptional balance o...

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    $149.99
    $149.99 - $149.99
    $149.99
    $69.99
    $69.99 - $69.99
    $69.99
    Save $80.00 Save $0.00
  • $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00

    Televue 3mm Delite 62º 1.25” Eyepiece EDE-03.0

    TeleVue
    In Stock

    The TeleVue 3mm DeLite eyepiece is a lighter, more compact, less expensive, 62° field/20mm eye relief version of the famed TeleVue Delos eyepieces,...

    View full details
    $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00
  • $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00

    Televue 13mm Delite 62º 1.25” Eyepiece EDE-13.0

    TeleVue
    In Stock

    The TeleVue 13mm DeLite eyepiece is a lighter, more compact, less expensive, 62° field/20mm eye relief version of the famed TeleVue Delos eyepieces...

    View full details
    $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00
  • $407.00 - $407.00
    $407.00
    $407.00 - $407.00
    $407.00

    TeleVue 17.3mm 1.25" 72° Field Delos Eyepiece

    TeleVue
    In Stock

    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...

    View full details
    $407.00 - $407.00
    $407.00
    $407.00 - $407.00
    $407.00
  • 5mm XW extra wide angle eyepiece
    Save $50.00 Save $0.00
    $299.00
    $299.00 - $299.00
    $299.00
    $249.00
    $249.00 - $249.00
    $249.00

    Pentax 5mm XW Extra Wide Angle Eyepiece

    Pentax
    More on the way

    This short focal length Pentax eyepiece has a very wide 70° field of view and very long 20mm eye relief, a uniquely useful combination not matched ...

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    $299.00
    $299.00 - $299.00
    $299.00
    $249.00
    $249.00 - $249.00
    $249.00
    Save $50.00 Save $0.00
  • $106.00 - $106.00
    $106.00
    $106.00 - $106.00
    $106.00

    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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    $106.00 - $106.00
    $106.00
    $106.00 - $106.00
    $106.00
  • $693.00 - $693.00
    $693.00
    $693.00 - $693.00
    $693.00

    TeleVue 4.7mm 1.25"/2" 110° Field Ethos-SX Eyepiece

    TeleVue
    In Stock

    Nearly half a century ago, Al Nagler designed the optics for the LEM (Lunar Excursion Module) simulator that was used to train NASA astronauts how ...

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    $693.00 - $693.00
    $693.00
    $693.00 - $693.00
    $693.00
  • $270.00 - $270.00
    $270.00
    $270.00 - $270.00
    $270.00

    TeleVue 55mm Plössl Eyepiece

    TeleVue
    In Stock

    If you have a 2" focuser on your f/8 and longer focal ratio telescope, here's a 2" eyepiece that will give you the widest possible field of view - ...

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    $270.00 - $270.00
    $270.00
    $270.00 - $270.00
    $270.00

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