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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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  • $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
  • $350.00 - $350.00
    $350.00
    $350.00 - $350.00
    $350.00

    TeleVue 4X Powermate Image Amplifier for 2" Eyepieces, with 1.25" Eyepiece Adapter

    TeleVue
    In Stock

    If you need a very high quality, very high power 4x Barlow for 2" eyepieces, look no further than this TeleVue Powermate. While not technically a B...

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    $350.00 - $350.00
    $350.00
    $350.00 - $350.00
    $350.00
  • $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
  • $894.00 - $894.00
    $894.00
    $894.00 - $894.00
    $894.00

    TeleVue 21mm 2" 100° Field Ethos Eyepiece

    TeleVue
    More on the way

    With a 21mm focal length, the field of this 100° apparent field Ethos eyepiece is nearly 64% larger in area than the 82° field of a "space-walking"...

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    $894.00 - $894.00
    $894.00
    $894.00 - $894.00
    $894.00
  • $334.01 - $334.01
    $334.01
    $334.01 - $334.01
    $334.01

    TeleVue 9mm Nagler Type 6 Eyepiece

    TeleVue
    More on the way

    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
  • 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...

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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
  • $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
  • $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,...

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    $269.00 - $269.00
    $269.00
    $269.00 - $269.00
    $269.00
  • 30mm 82° field argon-purged waterproof 2" eyepiece
    Save $50.05 Save $0.00
    $499.99
    $499.99 - $499.99
    $499.99
    $449.94
    $449.94 - $449.94
    $449.94

    Explore Scientific 30mm 82° Field Argon-Purged Waterproof 2" Eyepiece

    Explore Scientific
    In Stock

    This 82° field Explore Scientific 30mm 2" argon-purged waterproof eyepiece gives you the big picture, making you feel like you're relaxing in front...

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    $499.99
    $499.99 - $499.99
    $499.99
    $449.94
    $449.94 - $449.94
    $449.94
    Save $50.05 Save $0.00
  • $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
  • $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...

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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95
  • 5mm X-Cel LX Series 1.25"
    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95

    Celestron 5mm X-Cel LX Series 1.25" Eyepiece

    Celestron
    In Stock

    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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    $99.95 - $99.95
    $99.95
    $99.95 - $99.95
    $99.95
  • $379.01 - $379.01
    $379.01
    $379.01 - $379.01
    $379.01

    TeleVue 27mm 2" Panoptic Eyepiece

    TeleVue
    In Stock

    An excellent premium-quality low power wide field 2" eyepiece for the serious deep space explorer. The 27mm Panoptic, for example, will give you a ...

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    $379.01 - $379.01
    $379.01
    $379.01 - $379.01
    $379.01
  • $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
  • 20mm 68° field argon-purged waterproof 1.25" eyepiece
    Save $50.05 Save $0.00
    $219.99
    $219.99 - $219.99
    $219.99
    $169.94
    $169.94 - $169.94
    $169.94

    Explore Scientific 20mm 68° Field Argon-Purged Waterproof 1.25" Eyepiece

    Explore Scientific
    In Stock

    This Explore Scientific 20mm argon-purged waterproof eyepiece is a fine medium power 1.25" eyepiece whose substantial 68° field of view gives you "...

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    $219.99
    $219.99 - $219.99
    $219.99
    $169.94
    $169.94 - $169.94
    $169.94
    Save $50.05 Save $0.00
  • $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
  • $487.00 - $487.00
    $487.00
    $487.00 - $487.00
    $487.00

    TeleVue 22mm 2" Nagler Type 4 Eyepiece

    TeleVue
    In Stock

    The TeleVue 2" 22mm Nagler Type 4 replaces the 20mm Nagler Type 2, considered by many to be the finest eyepiece ever made. How do you improve on a ...

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    $487.00 - $487.00
    $487.00
    $487.00 - $487.00
    $487.00
  • 5mm 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 5mm XW Extra Wide Angle Eyepiece

    Pentax
    In Stock

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

    Pentax 3.5mm XW Extra Wide Angle Eyepiece

    Pentax
    More on the way

    This very short focal length Pentax eyepiece has a wide 70° field of view combined with a long 20mm eye relief for eyeglass use. It's a combination...

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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
  • 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
    In Stock

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

    Celestron X-Cel LX 3X 3-Element Barlow For 1.25" Eyepieces 93428

    Celestron
    More on the way

    This three-power Celestron X-Cel LX 1.25" Barlow is an air-spaced three-lens fully multicoated Barlow that provides premium optical performance at ...

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    $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95
  • $575.01 - $575.01
    $575.01
    $575.01 - $575.01
    $575.01

    TeleVue 41mm 2" Panoptic Eyepiece

    TeleVue
    More on the way

    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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    $575.01 - $575.01
    $575.01
    $575.01 - $575.01
    $575.01

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