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

    Astro-Tech 7mm UWA 82° 1.25" Eyepiece

    Astro-Tech
    In Stock

    Seven millimeters is the high-power eyepiece in a 1.25" barrel — the one that turns a 10-inch Dob into a planet machine. At 179x, Jupiter shows clo...

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    $119.95 - $119.95
    $119.95
    $119.95 - $119.95
    $119.95
  • Sold out
    $279.95 - $279.95
    $279.95
    $279.95 - $279.95
    $279.95

    Astro-Tech 7mm 100° Field Waterproof 1.25"/2" Eyepiece

    Astro-Tech
    Sold Out

    At 7mm, you're pushing into serious magnification territory. In a 10-inch f/5 Dobsonian, the 7mm XWA delivers 179x — high enough to resolve fine pl...

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    $279.95 - $279.95
    $279.95
    $279.95 - $279.95
    $279.95
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  • $40.00 - $40.00
    $40.00
    $40.00 - $40.00
    $40.00

    Astro-Tech 5.5mm 1.25" PF Eyepiece

    Astro-Tech
    In Stock

    High-power eyepieces used to mean a choice: pay for premium glass, or squint through a cheap 4mm Plössl with 3mm of eye relief and a field the size...

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    $40.00 - $40.00
    $40.00
    $40.00 - $40.00
    $40.00
  • $305.00 - $305.00
    $305.00
    $305.00 - $305.00
    $305.00

    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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    $305.00 - $305.00
    $305.00
    $305.00 - $305.00
    $305.00
  • $438.00 - $438.00
    $438.00
    $438.00 - $438.00
    $438.00

    TeleVue 6mm 1.25" 72° Field Delos Eyepiece

    TeleVue
    More on the way

    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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    $438.00 - $438.00
    $438.00
    $438.00 - $438.00
    $438.00
  • Save $130.99 Save $0.00
    $269.99
    $269.99 - $269.99
    $269.99
    $139.00
    $139.00 - $139.00
    $139.00

    Explore Scientific 6.5mm 82 Degree 1.25" LER Waterproof Eyepiece

    Explore Scientific
    More on the way

    Explore Scientific 6.5mm 82° 1.25" LER Eyepiece – A Premium Wide-Field Experience with Superior Comfort When it comes to high-performance eyepieces...

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    $269.99
    $269.99 - $269.99
    $269.99
    $139.00
    $139.00 - $139.00
    $139.00
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  • 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
    More on the way

    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
  • Explore Scientific 62° 5.5mm 1.25" Waterproof Eyepiece
    Save $70.99 Save $0.00
    $149.99
    $149.99 - $149.99
    $149.99
    $79.00
    $79.00 - $79.00
    $79.00

    Explore Scientific 5.5mm 62° 1.25" Waterproof Eyepiece

    Explore Scientific
    More on the way

    Explore Scientific 5.5mm 62° Series 1.25" Waterproof Eyepiece If you’re looking to pull in crisp planetary detail, split tight double stars, or ta...

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    $149.99
    $149.99 - $149.99
    $149.99
    $79.00
    $79.00 - $79.00
    $79.00
    Save $70.99 Save $0.00
  • $700.00 - $700.00
    $700.00
    $700.00 - $700.00
    $700.00

    TeleVue 6mm 1.25"/2" 100° Field Ethos Eyepiece

    TeleVue
    In Stock

    Just like the 8mm TeleVue Ethos before it, the TeleVue 6mm Ethos eyepiece once again raises the bar for shorter focal length eyepieces. It expands ...

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    $700.00 - $700.00
    $700.00
    $700.00 - $700.00
    $700.00
  • Save $60.99 Save $0.00
    $119.99
    $119.99 - $119.99
    $119.99
    $59.00
    $59.00 - $59.00
    $59.00

    Explore Scientific 6.5mm 52° Series Waterproof Eyepiece

    Explore Scientific
    More on the way

    Explore Scientific 6.5mm 52° Argon-Purged Waterproof Eyepiece A high-quality eyepiece is one of the best investments you can make in your telescope...

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    $119.99
    $119.99 - $119.99
    $119.99
    $59.00
    $59.00 - $59.00
    $59.00
    Save $60.99 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...

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    $229.99 - $229.99
    $229.99
    $229.99 - $229.99
    $229.99
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  • 5.5mm 100° field argon-purged waterproof 2" eyepiece
    Save $250.99 Save $0.00
    $549.99
    $549.99 - $549.99
    $549.99
    $299.00
    $299.00 - $299.00
    $299.00

    Explore Scientific 5.5mm 100° Field Waterproof 2" Eyepiece

    Explore Scientific
    More on the way

    The Explore Scientific 5.5mm argon-purged waterproof 2" eyepiece combines a high power capability with a 100° apparent field to provide a jaw-dropp...

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    $549.99
    $549.99 - $549.99
    $549.99
    $299.00
    $299.00 - $299.00
    $299.00
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  • 7mm X-Cel LX Series 1.25"
    $109.95 - $109.95
    $109.95
    $109.95 - $109.95
    $109.95

    Celestron 7mm X-Cel LX Series 1.25" Eyepiece

    Celestron
    In Stock

    This short focal length 7mm Celestron X-Cel LX Series six-element eyepiece is an economical choice for high quality/high magnification observing an...

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    $109.95 - $109.95
    $109.95
    $109.95 - $109.95
    $109.95
  • $31.95 - $31.95
    $31.95
    $31.95 - $31.95
    $31.95

    Celestron Omni 6mm 1.25" Plossl Eyepiece 93317

    Celestron
    More on the way

    This is a good quality fully-multicoated high power eyepiece at a good low price. It's designed for high magnification lunar and planetary observin...

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    $31.95 - $31.95
    $31.95
    $31.95 - $31.95
    $31.95
  • $381.00 - $381.00
    $381.00
    $381.00 - $381.00
    $381.00

    TeleVue 7mm Nagler Type 6 Eyepiece

    TeleVue
    In Stock

    This is a superb short focal length ultra wide field eyepiece designed as an upgrade to the original and highly-prized 7mm Nagler. This 1.25" eyepi...

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    $381.00 - $381.00
    $381.00
    $381.00 - $381.00
    $381.00
  • $139.95 - $139.95
    $139.95
    $139.95 - $139.95
    $139.95

    Celestron 7mm 1.25" 82º Luminos Eyepiece

    Celestron
    More on the way

    This sharp 7mm Celestron Luminos eyepiece has a wide and flat 82° field of view for "picture window" views, even at very high powers . This excepti...

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    $139.95 - $139.95
    $139.95
    $139.95 - $139.95
    $139.95
  • $684.00 - $684.00
    $684.00
    $684.00 - $684.00
    $684.00

    Tele Vue 5.5mm Nagler Type 7 Eyepiece 1.25" and 2"

    TeleVue
    More on the way

    Nagler Type 7 Eyepieces – The Next Evolution in Immersive Astronomy   The Tele Vue Nagler Type 7 eyepiece series is the newest evolution in the leg...

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    $684.00 - $684.00
    $684.00
    $684.00 - $684.00
    $684.00
  • 6mm Brandon "flat top"
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

    Vernonscope 6mm Brandon "Flat Top" Eyepiece

    Vernonscope
    More on the way

    The 6mm Vernonscope Brandon "flat top" eyepiece is designed for very high power use with any telescope type, at focal ratios f/7 and above. It prov...

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    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

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