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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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  • $45.00 - $45.00
    $45.00
    $45.00 - $45.00
    $45.00

    Tele Vue Eyeguard Extender

    TeleVue
    More on the way

     Concept: Many Tele Vue eyepieces, such as DeLite, Delos, Nagler type 4, 55 Plössl, 41 Panoptic have adjustable height eyeguards to permit comforta...

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    $45.00 - $45.00
    $45.00
    $45.00 - $45.00
    $45.00
  • 8-24mm SMC 1.25" long eye relief astronomical zoom; 21-63x or 26-78x spotting scope zoom
    $359.00 - $359.00
    $359.00
    $359.00 - $359.00
    $359.00

    Pentax 8-24mm SMC 1.25" Long Eye Relief Astronomical Zoom; 21-63x or 26-78x Spotting Scope Zoom

    Pentax
    More on the way

    This is an ultra-premium six-element zoom eyepiece. It has a long eye relief that's particularly well-suited to those who must wear eyeglasses whil...

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    $359.00 - $359.00
    $359.00
    $359.00 - $359.00
    $359.00
  • $215.00 - $215.00
    $215.00
    $215.00 - $215.00
    $215.00

    Sky-Watcher Emerald 9mm 82° Eyepiece

    Sky-Watcher
    In Stock

    The 9mm focal length sits near the center of where most observers spend their time. It's high enough to reveal meaningful lunar and planetary detai...

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    $215.00 - $215.00
    $215.00
    $215.00 - $215.00
    $215.00
  • Sold out
    $109.00
    $109.00 - $109.00
    $109.00
    $92.65
    $92.65 - $92.65
    $92.65

    Sky Rover 10mm 60° Ultra Flat Field Eyepiece NEAF DEMO

    Sky Rover
    Sold Out

    Fast focal ratio scopes demand eyepieces that can flatten the field without complexity. Most designs start to start to show edge softness from a co...

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    $109.00
    $109.00 - $109.00
    $109.00
    $92.65
    $92.65 - $92.65
    $92.65
    Sold out
  • $40.00 - $40.00
    $40.00
    $40.00 - $40.00
    $40.00

    Sky Rover 10.5mm 60° Premium Flat Field Eyepiece

    Sky Rover
    More on the way

    There's a magnification range where deep-sky observing transforms. Globular clusters stop being fuzzy spots and resolve into individual stars. Plan...

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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

    Sky Rover 19mm 65° Premium Flat Field Eyepiece

    Sky Rover
    More on the way

    Most telescopes arrive with one eyepiece — a 25mm or 26mm that shows you the wide view and not much else. It's the beginning. But the first time yo...

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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

    Sky Rover 15.5mm 65° Premium Flat Field Eyepiece

    Sky Rover
    More on the way

    You've been observing with the stock 25mm eyepiece for a few months. You know the Orion Nebula at low power. But when you try to push in on a globu...

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    $40.00 - $40.00
    $40.00
    $40.00 - $40.00
    $40.00
  • $269.00 - $269.00
    $269.00
    $269.00 - $269.00
    $269.00

    Sky Rover XWA 3.5mm 110° Ultra Wide Angle Eyepiece

    Sky Rover
    More on the way

    A 3.5mm eyepiece is a specialist. It's the one you reach for when the atmosphere goes still — when stars stop shimmering, when planetary detail sna...

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    $269.00 - $269.00
    $269.00
    $269.00 - $269.00
    $269.00
  • $109.00 - $109.00
    $109.00
    $109.00 - $109.00
    $109.00

    Sky Rover 10mm 60° Ultra Flat Field Eyepiece

    Sky Rover
    In Stock

    Fast focal ratio scopes demand eyepieces that can flatten the field without complexity. Most designs start to start to show edge softness from a co...

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    $109.00 - $109.00
    $109.00
    $109.00 - $109.00
    $109.00
  • 3.00 Diopter Dioptrx astigmatism-correcting lens
    $155.00 - $155.00
    $155.00
    $155.00 - $155.00
    $155.00

    TeleVue 3.00 Diopter Dioptrx Astigmatism-Correcting Lens

    TeleVue
    In Stock

    This Dioptrx accessory lens corrects for an astigmatism of 3.00 diopters. (This would be a "CYL" value of 3.00 in your eyeglass prescription.)  The...

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    $155.00 - $155.00
    $155.00
    $155.00 - $155.00
    $155.00
  • Celestron Ultima Edge 15mm 1.25-inch eyepiece with 70-degree apparent field of view
    $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95

    Celestron Ultima Edge 15mm 1.25" Eyepiece 93451

    Celestron
    In Stock

    Celestron Ultima Edge 15mm 1.25" Eyepiece The Celestron Ultima Edge 15mm eyepiece delivers high-performance, flat-field optics in a compact 1.25" f...

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    $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95
  • Celestron Omni 56mm 2-inch Plössl eyepiece with long eye relief and wide barrel
    $129.95 - $129.95
    $129.95
    $129.95 - $129.95
    $129.95

    Celestron Omni 56mm 2" Plossl 93328

    Celestron
    In Stock

    Celestron Omni 56mm 2" Plössl Eyepiece – A Wide-Field Low Power Giant for Deep Sky Exploration The Celestron Omni 56mm 2" Plössl eyepiece is design...

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    $129.95 - $129.95
    $129.95
    $129.95 - $129.95
    $129.95

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