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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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  • $106.00 - $106.00
    $106.00
    $106.00 - $106.00
    $106.00

    TeleVue 8mm Plössl Eyepiece

    TeleVue
    In Stock

    This is a very good medium high to high power eyepiece (the power depends on the focal length of your scope) for observing lunar and planetary deta...

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    $106.00 - $106.00
    $106.00
    $106.00 - $106.00
    $106.00
  • $354.00 - $354.00
    $354.00
    $354.00 - $354.00
    $354.00

    TeleVue 3.5mm Nagler Type 6 Eyepiece

    TeleVue
    In Stock

    This is an exceptional short focal length ultra wide field eyepiece. It uses seven optical elements for optimized performance across a very wide fi...

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    $354.00 - $354.00
    $354.00
    $354.00 - $354.00
    $354.00
  • $241.00 - $241.00
    $241.00
    $241.00 - $241.00
    $241.00

    TeleVue 2X Big Barlow for 2" Eyepieces, with 1.25" Eyepiece Adapter

    TeleVue
    In Stock

    This 2" 2x Clamp Ring Big Barlow can be used with any telescope using a 2" focuser. As it is only 4.5" long, it can also be used in most 2" star di...

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    $241.00 - $241.00
    $241.00
    $241.00 - $241.00
    $241.00
  • $354.00 - $354.00
    $354.00
    $354.00 - $354.00
    $354.00

    TeleVue 7mm Nagler Type 6 Eyepiece

    TeleVue
    More on the way

    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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    $354.00 - $354.00
    $354.00
    $354.00 - $354.00
    $354.00
  • 14mm 1.25" 72° field Delos
    $407.00 - $407.00
    $407.00
    $407.00 - $407.00
    $407.00

    TeleVue 14mm 1.25" 72° Field Delos Eyepiece

    TeleVue
    More on the way

    The 14mm TeleVue Delos puts the optical virtues of a TeleVue Ethos eyepiece - high contrast, a neutral color balance, and full field sharpness - in...

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    $407.00 - $407.00
    $407.00
    $407.00 - $407.00
    $407.00
  • 3.5mm 1.25" 72° field Delos
    $407.00 - $407.00
    $407.00
    $407.00 - $407.00
    $407.00

    TeleVue 3.5mm 1.25" 72° Field Delos Eyepiece

    TeleVue
    In Stock

    The 3.5mm TeleVue Delos is designed to produce very high power/high contrast/high quality images with any telescope. It has a long 20mm eye relief ...

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    $407.00 - $407.00
    $407.00
    $407.00 - $407.00
    $407.00
  • High hat adapter to use 1.25" eyepieces in 2" focusers, matte satin finish
    $69.00 - $69.00
    $69.00
    $69.00 - $69.00
    $69.00

    TeleVue High Hat Adapter to Use 1.25" Eyepieces in 2" Focusers, Matte Satin Finish

    TeleVue
    In Stock

    This high hat step-down adapter allows the use of 1.25" eyepieces in 2" focuser drawtubes and 2" star diagonals. The body of the adapter has a non-...

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    $69.00 - $69.00
    $69.00
    $69.00 - $69.00
    $69.00
  • 1.50 Diopter Dioptrx astigmatism-correcting lens
    $122.00 - $122.00
    $122.00
    $122.00 - $122.00
    $122.00

    TeleVue 1.50 Diopter Dioptrx Astigmatism-Correcting Lens

    TeleVue
    In Stock

    This Dioptrx accessory lens corrects for an astigmatism of 1.50 diopters. (This would be a"CYL" value of 1.50 in your eyeglass prescription.)  The ...

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    $122.00 - $122.00
    $122.00
    $122.00 - $122.00
    $122.00
  • $635.00 - $635.00
    $635.00
    $635.00 - $635.00
    $635.00

    Tele Vue 19mm Nagler Type 7 Eyepiece 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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    $635.00 - $635.00
    $635.00
    $635.00 - $635.00
    $635.00
  • 1.00 Diopter Dioptrx astigmatism-correcting lens
    $122.00 - $122.00
    $122.00
    $122.00 - $122.00
    $122.00

    TeleVue 1.00 Diopter Dioptrx Astigmatism-Correcting Lens

    TeleVue
    In Stock

    This Dioptrx accessory lens corrects for an astigmatism of 1.00 diopter. (This would be a"CYL" value of 1.00 in your eyeglass prescription.)  The l...

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    $122.00 - $122.00
    $122.00
    $122.00 - $122.00
    $122.00
  • 0.50 Diopter Dioptrx astigmatism-correcting lens
    $122.00 - $122.00
    $122.00
    $122.00 - $122.00
    $122.00

    TeleVue 0.50 Diopter Dioptrx Astigmatism-Correcting Lens

    TeleVue
    More on the way

    This Dioptrx accessory lens corrects for an astigmatism of 0.50 diopter. (This would be a"CYL" value of 0.50 in your eyeglass prescription.)  The l...

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    $122.00 - $122.00
    $122.00
    $122.00 - $122.00
    $122.00
  • 2.00 Diopter Dioptrx astigmatism-correcting lens
    $122.00 - $122.00
    $122.00
    $122.00 - $122.00
    $122.00

    TeleVue 2.00 Diopter Dioptrx Astigmatism-Correcting Lens

    TeleVue
    In Stock

    This Dioptrx accessory lens corrects for an astigmatism of 2.00 diopters. (This would be a "CYL" value of 2.00 in your eyeglass prescription.) The ...

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    $122.00 - $122.00
    $122.00
    $122.00 - $122.00
    $122.00
  • 2.25 Diopter Dioptrx astigmatism-correcting lens
    $122.00 - $122.00
    $122.00
    $122.00 - $122.00
    $122.00

    TeleVue 2.25 Diopter Dioptrx Astigmatism-Correcting Lens

    TeleVue
    In Stock

    This Dioptrx accessory lens corrects for an astigmatism of 2.25 diopters. (This would be a "CYL" value of 2.25 in your eyeglass prescription.)  The...

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    $122.00 - $122.00
    $122.00
    $122.00 - $122.00
    $122.00
  • $635.00 - $635.00
    $635.00
    $635.00 - $635.00
    $635.00

    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...

    View full details
    $635.00 - $635.00
    $635.00
    $635.00 - $635.00
    $635.00
  • $635.00 - $635.00
    $635.00
    $635.00 - $635.00
    $635.00

    Tele Vue 9mm 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...

    View full details
    $635.00 - $635.00
    $635.00
    $635.00 - $635.00
    $635.00
  • 2.50 Diopter Dioptrx astigmatism-correcting lens
    $138.00 - $138.00
    $138.00
    $138.00 - $138.00
    $138.00

    TeleVue 2.50 Diopter Dioptrx Astigmatism-Correcting Lens

    TeleVue
    In Stock

    This Dioptrx accessory lens corrects for an astigmatism of 2.5 diopters. (This would be a "CYL" value of 2.50 in your eyeglass prescription.)  The ...

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    $138.00 - $138.00
    $138.00
    $138.00 - $138.00
    $138.00
  • $635.00 - $635.00
    $635.00
    $635.00 - $635.00
    $635.00

    Tele Vue 14mm Nagler Type 7 Eyepiece 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...

    View full details
    $635.00 - $635.00
    $635.00
    $635.00 - $635.00
    $635.00
  • 3.50 Diopter Dioptrx astigmatism-correcting lens
    $138.00 - $138.00
    $138.00
    $138.00 - $138.00
    $138.00

    TeleVue 3.50 Diopter Dioptrx Astigmatism-Correcting Lens

    TeleVue
    In Stock

    This Dioptrx accessory lens corrects for an astigmatism of 3.50 diopters. (This would be a "CYL" value of 3.50 in your eyeglass prescription.)  The...

    View full details
    $138.00 - $138.00
    $138.00
    $138.00 - $138.00
    $138.00
  • 3.00 Diopter Dioptrx astigmatism-correcting lens
    $138.00 - $138.00
    $138.00
    $138.00 - $138.00
    $138.00

    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...

    View full details
    $138.00 - $138.00
    $138.00
    $138.00 - $138.00
    $138.00
  • $42.00 - $42.00
    $42.00
    $42.00 - $42.00
    $42.00

    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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    $42.00 - $42.00
    $42.00
    $42.00 - $42.00
    $42.00

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