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

    TeleVue 32mm Plössl Eyepiece

    TeleVue
    More on the way

    This is a very good low power/wide field eyepiece for capturing galaxy pairs and galaxy clusters, viewing emission and reflection nebulas in their ...

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    $163.00 - $163.00
    $163.00
    $163.00 - $163.00
    $163.00
  • 8-24mm zoom, 1.25"
    $107.95 - $107.95
    $107.95
    $107.95 - $107.95
    $107.95

    Celestron 8-24mm Zoom, 1.25" Eyepiece

    Celestron
    In Stock

    This fully multicoated Celestron 8-24mm zoom eyepiece gives you a virtually infinite number of magnifications in a single very reasonably-priced ey...

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    $107.95 - $107.95
    $107.95
    $107.95 - $107.95
    $107.95
  • $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00

    Televue 18.2mm Delite 62° 1.25" Eyepiece

    TeleVue
    In Stock

    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
    Save $100.00 Save $0.00
    $269.99
    $269.99 - $269.99
    $269.99
    $169.99
    $169.99 - $169.99
    $169.99

    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
    $169.99
    $169.99 - $169.99
    $169.99
    Save $100.00 Save $0.00
  • $41.95 - $41.95
    $41.95
    $41.95 - $41.95
    $41.95

    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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    $41.95 - $41.95
    $41.95
    $41.95 - $41.95
    $41.95
  • $354.00 - $354.00
    $354.00
    $354.00 - $354.00
    $354.00

    TeleVue 13mm Nagler Type 6 Eyepiece

    TeleVue
    In Stock

    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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    $354.00 - $354.00
    $354.00
    $354.00 - $354.00
    $354.00
  • $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
  • $452.00 - $452.00
    $452.00
    $452.00 - $452.00
    $452.00

    TeleVue 3mm to 6mm Nagler 1.25" Zoom Eyepiece

    TeleVue
    More on the way

    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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    $452.00 - $452.00
    $452.00
    $452.00 - $452.00
    $452.00
  • $163.00 - $163.00
    $163.00
    $163.00 - $163.00
    $163.00

    TeleVue 40mm Plössl Eyepiece

    TeleVue
    More on the way

    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
  • 13mm 1.25"/2" 100° field Ethos
    $693.00 - $693.00
    $693.00
    $693.00 - $693.00
    $693.00

    TeleVue 13mm 1.25"/2" 100° Field Ethos

    TeleVue
    More on the way

    The 100° apparent field of this new TeleVue 13mm Ethos eyepiece provides a field area more than 50% larger than the "space-walking" 82° field of a ...

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    $693.00 - $693.00
    $693.00
    $693.00 - $693.00
    $693.00
  • $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
  • 11mm 82° field argon-purged waterproof 1.25" eyepiece
    $229.99 - $229.99
    $229.99
    $229.99 - $229.99
    $229.99

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

    Explore Scientific
    More on the way

    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 - $229.99
    $229.99
  • 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...

    View full details
    $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00
  • $354.00 - $354.00
    $354.00
    $354.00 - $354.00
    $354.00

    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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    $354.00 - $354.00
    $354.00
    $354.00 - $354.00
    $354.00
  • $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95

    Celestron Luminos 2.5X 4-Element Barlow For 2" And 1.25" Eyepieces 93436

    Celestron
    More on the way

    This 2.5x magnification Celestron Luminos 2" Barlow uses a four-lens fully multicoated optical system to provide a flat field and apochromatic-qual...

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    $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95
  • $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
  • $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,...

    View full details
    $283.00 - $283.00
    $283.00
    $283.00 - $283.00
    $283.00
  • $128.00 - $128.00
    $128.00
    $128.00 - $128.00
    $128.00

    TeleVue 25mm Plössl Eyepiece

    TeleVue
    More on the way

    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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    $128.00 - $128.00
    $128.00
    $128.00 - $128.00
    $128.00
  • $299.00 - $299.00
    $299.00
    $299.00 - $299.00
    $299.00

    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 - $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
  • $941.00 - $941.00
    $941.00
    $941.00 - $941.00
    $941.00

    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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    $941.00 - $941.00
    $941.00
    $941.00 - $941.00
    $941.00
  • $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

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