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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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  • $69.95 - $69.95
    $69.95
    $69.95 - $69.95
    $69.95

    Astro-Tech 3.2mm 1.25" Paradigm Dual ED Eyepiece

    Astro-Tech
    In Stock

    This Astro-Tech 3.2mm Paradigm Dual ED eyepiece is excellent for medium high to high power magnification viewing with short to medium focal length ...

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    $69.95 - $69.95
    $69.95
    $69.95 - $69.95
    $69.95
  • $40.00 - $40.00
    $40.00
    $40.00 - $40.00
    $40.00

    Astro-Tech 25mm 1.25" PF Eyepiece

    Astro-Tech
    In Stock

    Looking to upgrade your standard 25/26mm eyepiece? Look no further than the Astro-Tech 25mm PF series eyepiece. So, I know someone will wonder what...

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    $40.00
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    $40.00
  • $370.00 - $370.00
    $370.00
    $370.00 - $370.00
    $370.00

    TeleVue 24mm Panoptic Eyepiece

    TeleVue
    More on the way

    This is one of the most popular premium-quality 1.25" low to medium power wide field eyepieces. An ED glass element provides high contrast for obse...

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    $370.00 - $370.00
    $370.00
    $370.00 - $370.00
    $370.00
  • $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
  • $40.00 - $40.00
    $40.00
    $40.00 - $40.00
    $40.00

    Astro-Tech 15.5mm 1.25" PF Eyepiece

    Astro-Tech
    In Stock

    This Astro-Tech 15.5mm PF series eyepiece has excellent eyerelief and a fantastic flat field to further enhance your viewing pleasure. This Astro-T...

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    $40.00 - $40.00
    $40.00
    $40.00 - $40.00
    $40.00
  • $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
  • 24mm 68° field argon-purged waterproof 1.25" eyepiece
    $269.99 - $269.99
    $269.99
    $269.99 - $269.99
    $269.99

    Explore Scientific 24mm 68° Field Argon-Purged Waterproof 1.25" Eyepiece

    Explore Scientific
    More on the way

    This Explore Scientific 24mm argon-purged eyepiece has a wide 68° field that gives impressively sharp and contrasty medium power images with virtua...

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    $269.99 - $269.99
    $269.99
    $269.99 - $269.99
    $269.99
  • $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
  • $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
  • $400.00 - $400.00
    $400.00
    $400.00 - $400.00
    $400.00

    TeleVue 27mm 2" Panoptic Eyepiece

    TeleVue
    More on the way

    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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    $400.00 - $400.00
    $400.00
    $400.00 - $400.00
    $400.00
  • 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
  • $289.00 - $289.00
    $289.00
    $289.00 - $289.00
    $289.00

    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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    $289.00 - $289.00
    $289.00
    $289.00 - $289.00
    $289.00
  • $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
  • 20mm 68° field argon-purged waterproof 1.25" eyepiece
    $219.99 - $219.99
    $219.99
    $219.99 - $219.99
    $219.99

    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 - $219.99
    $219.99
  • $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 ...

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    $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

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