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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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  • $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95

    Celestron 2X Omni Barlow for 1.25" Eyepieces

    Celestron
    In Stock

    This is a good quality 1.25" 2x two-element fully multicoated Barlow. Its relatively short 3" length allows use in star diagonals. A thumbscrew hol...

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    $39.95 - $39.95
    $39.95
    $39.95 - $39.95
    $39.95
  • $229.99 - $229.99
    $229.99
    $229.99 - $229.99
    $229.99

    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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    $229.99 - $229.99
    $229.99
    $229.99 - $229.99
    $229.99
  • $134.00 - $134.00
    $134.00
    $134.00 - $134.00
    $134.00

    TeleVue 2X Barlow for 1.25" Eyepieces

    TeleVue
    More on the way

    This 2-element Barlow has superb sharpness to match that of TeleVue eyepieces. Despite being "merely" an achromatic system, good design gives it be...

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    $134.00 - $134.00
    $134.00
    $134.00 - $134.00
    $134.00
  • $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95

    Celestron X-Cel LX 2X 3-Element Barlow for 1.25" Eyepieces 93529

    Celestron
    In Stock

    This 2x Celestron X-Cel LX three-lens air-spaced fully multicoated 1.25" Barlow performs a lot more expensively than it costs . . .This Celestron X...

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    $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95
  • $335.00 - $335.00
    $335.00
    $335.00 - $335.00
    $335.00

    TeleVue 13mm Nagler Type 6 Eyepiece

    TeleVue
    More on the way

    This premium 1.25" eyepiece from Al Nagler uses seven optical elements for optimized performance across a very wide 82° field of view. Its wide fie...

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    $335.00 - $335.00
    $335.00
    $335.00 - $335.00
    $335.00
  • 11mm 82° field argon-purged waterproof 1.25" eyepiece
    Save $50.05 Save $0.00
    $229.99
    $229.99 - $229.99
    $229.99
    $179.94
    $179.94 - $179.94
    $179.94

    Explore Scientific 11mm 82° Field Argon-Purged Waterproof 1.25" Eyepiece

    Explore Scientific
    In Stock

    The "picture window on space" viewing experience of this 82° field Explore Scientific 11mm 1.25" argon-purged eyepiece gives you the magnification ...

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    $229.99
    $229.99 - $229.99
    $229.99
    $179.94
    $179.94 - $179.94
    $179.94
    Save $50.05 Save $0.00
  • $428.01 - $428.01
    $428.01
    $428.01 - $428.01
    $428.01

    TeleVue 3mm to 6mm Nagler 1.25" Zoom Eyepiece

    TeleVue
    In Stock

    In conventional zooms, the apparent field of view and the usable eye relief change as the focal length changes. Likewise, objects go markedly out o...

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    $428.01 - $428.01
    $428.01
    $428.01 - $428.01
    $428.01
  • $155.00 - $155.00
    $155.00
    $155.00 - $155.00
    $155.00

    TeleVue 40mm Plössl Eyepiece

    TeleVue
    In Stock

    This is a very good low power/wide field eyepiece that provides the widest field possible from a 1.25" eyepiece. Its field stop (the rim inside the...

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    $155.00 - $155.00
    $155.00
    $155.00 - $155.00
    $155.00
  • $269.00 - $269.00
    $269.00
    $269.00 - $269.00
    $269.00

    Televue 5mm Delite 62° 1.25" Eyepiece

    TeleVue
    In Stock

    The 5mm 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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    $269.00 - $269.00
    $269.00
    $269.00 - $269.00
    $269.00
  • TeleVue 11mm DeLite™ 62° 1.25" eyepiece
    $269.00 - $269.00
    $269.00
    $269.00 - $269.00
    $269.00

    Televue 11mm Delite 62° 1.25" Eyepiece

    TeleVue
    More on the way

    The TeleVue 11mm 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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    $269.00 - $269.00
    $269.00
    $269.00 - $269.00
    $269.00
  • $122.00 - $122.00
    $122.00
    $122.00 - $122.00
    $122.00

    TeleVue 25mm Plössl Eyepiece

    TeleVue
    In Stock

    This is a very good medium to low power (depending on the focal length of your telescope) eyepiece for lunar observing, viewing emission and reflec...

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    $122.00 - $122.00
    $122.00
    $122.00 - $122.00
    $122.00
  • 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
  • $269.00 - $269.00
    $269.00
    $269.00 - $269.00
    $269.00

    Televue 7mm Delite 62° 1.25" Eyepiece

    TeleVue
    More on the way

    The 7mm 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
    $269.00 - $269.00
    $269.00
    $269.00 - $269.00
    $269.00
  • $386.01 - $386.01
    $386.01
    $386.01 - $386.01
    $386.01

    TeleVue 6mm 1.25" 72° Field Delos Eyepiece

    TeleVue
    In Stock

    The 6mm TeleVue Delos is designed for no-holds-barred high power/high contrast solar system and deep space observing with any telescope. It has a l...

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    $386.01 - $386.01
    $386.01
    $386.01 - $386.01
    $386.01
  • 25mm X-Cel LX Series 1.25"
    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

    Celestron 25mm X-Cel LX Series 1.25" Eyepiece

    Celestron
    More on the way

    This Celestron X-Cel LX 25mm eyepiece uses a new six-element fully-multicoated optical system to provide a wide 60° field of view. It is a good med...

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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95
  • $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,...

    View full details
    $268.01 - $268.01
    $268.01
    $268.01 - $268.01
    $268.01
  • 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
    $229.99 - $229.99
    $229.99
    Sold out
  • 7mm XW extra wide angle eyepiece
    Save $30.00 Save $0.00
    $299.00
    $299.00 - $299.00
    $299.00
    $269.00
    $269.00 - $269.00
    $269.00

    Pentax 7mm XW Extra Wide Angle Eyepiece

    Pentax
    In Stock

    This wide field Pentax eyepiece is designed for high power observing of objects on the ground by day and in the skies at night. Terrestrially, it i...

    View full details
    $299.00
    $299.00 - $299.00
    $299.00
    $269.00
    $269.00 - $269.00
    $269.00
    Save $30.00 Save $0.00
  • 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...

    View full details
    $229.99 - $229.99
    $229.99
    $229.99 - $229.99
    $229.99
    Sold out
  • $269.00 - $269.00
    $269.00
    $269.00 - $269.00
    $269.00

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

    TeleVue
    More on the way

    The TeleVue 4mm DeLite eyepiece is a lighter, more compact, less expensive, 62° field/20mm eye relief version of the famed TeleVue Delos eyepieces,...

    View full details
    $269.00 - $269.00
    $269.00
    $269.00 - $269.00
    $269.00
  • $369.00 - $369.00
    $369.00
    $369.00 - $369.00
    $369.00

    TeleVue 16mm Nagler Type 5 Eyepiece

    TeleVue
    More on the way

    This premium 1.25" eyepiece from Al Nagler uses six optical elements for optimized performance across a very wide field of view. Several different ...

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    $369.00 - $369.00
    $369.00
    $369.00 - $369.00
    $369.00
  • $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
  • $49.95 - $49.95
    $49.95
    $49.95 - $49.95
    $49.95

    Celestron Omni 32mm 1.25" Plossl Eyepiece 93323

    Celestron
    In Stock

    This is a good quality fully-multicoated low power eyepiece at a price that's substantially lower than competitive Plössls. Its 50 degree apparent ...

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    $49.95 - $49.95
    $49.95
    $49.95 - $49.95
    $49.95
  • 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...

    View full details
    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

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