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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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  • 24mm illuminated reticle eyepiece
    $59.95 - $59.95
    $59.95
    $59.95 - $59.95
    $59.95

    Astro-Tech 24mm Illuminated Reticle Eyepiece

    Astro-Tech
    In Stock

    The economical Astro-Tech #AT24IL illuminated reticle 1.25" eyepiece helps you align your go-to telescope on the sky, check your polar alignment fo...

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    $59.95 - $59.95
    $59.95
    $59.95 - $59.95
    $59.95
  • $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
  • $734.00 - $734.00
    $734.00
    $734.00 - $734.00
    $734.00

    TeleVue 31mm 2" Nagler Type 5 Eyepiece

    TeleVue
    More on the way

    This Nagler Type Five eyepiece uses a new six-lens design that reduces the size and weight of this 31mm eyepiece to less than that of the previous ...

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    $734.00 - $734.00
    $734.00
    $734.00 - $734.00
    $734.00
  • $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00

    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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    $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00
  • $163.00 - $163.00
    $163.00
    $163.00 - $163.00
    $163.00

    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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    $163.00 - $163.00
    $163.00
    $163.00 - $163.00
    $163.00
  • $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00

    Televue 5mm Delite 62° 1.25" Eyepiece

    TeleVue
    More on the way

    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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    $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00
  • TeleVue 11mm DeLite™ 62° 1.25" eyepiece
    $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00

    Televue 11mm Delite 62° 1.25" Eyepiece

    TeleVue
    In Stock

    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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    $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 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,...

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    $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 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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    $407.00 - $407.00
    $407.00
    $407.00 - $407.00
    $407.00
  • $299.00 - $299.00
    $299.00
    $299.00 - $299.00
    $299.00

    Pentax 10mm XW Extra Wide Angle Eyepiece

    Pentax
    In Stock

    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 - $299.00
    $299.00
  • $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00

    Televue 9mm Delite 62° 1.25" Eyepiece

    TeleVue
    More on the way

    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
    $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00
  • 7mm XW extra wide angle eyepiece
    $299.00 - $299.00
    $299.00
    $299.00 - $299.00
    $299.00

    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 - $299.00
    $299.00
  • $512.00 - $512.00
    $512.00
    $512.00 - $512.00
    $512.00

    TeleVue 22mm 2" Nagler Type 4 Eyepiece

    TeleVue
    More on the way

    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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    $512.00 - $512.00
    $512.00
    $512.00 - $512.00
    $512.00
  • $407.00 - $407.00
    $407.00
    $407.00 - $407.00
    $407.00

    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...

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

    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
    $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00
  • 30mm 82° field argon-purged waterproof 2" eyepiece
    $499.99 - $499.99
    $499.99
    $499.99 - $499.99
    $499.99

    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 - $499.99
    $499.99
  • $451.00 - $451.00
    $451.00
    $451.00 - $451.00
    $451.00

    TeleVue 35mm 2" Panoptic Eyepiece

    TeleVue
    More on the way

    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
  • 5mm XW extra wide angle eyepiece
    $299.00 - $299.00
    $299.00
    $299.00 - $299.00
    $299.00

    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 ...

    View full details
    $299.00 - $299.00
    $299.00
    $299.00 - $299.00
    $299.00
  • $299.00 - $299.00
    $299.00
    $299.00 - $299.00
    $299.00

    Pentax 3.5mm XW Extra Wide Angle Eyepiece

    Pentax
    In Stock

    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 - $299.00
    $299.00
  • $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00

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

    TeleVue
    More on the way

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

    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...

    View full details
    $607.00 - $607.00
    $607.00
    $607.00 - $607.00
    $607.00
  • $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00

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

    TeleVue
    More on the way

    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

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