Skip to content
Trusted advice since 1979 Excellent 4.5 rating on Google Reviews Free Shipping On Orders Over $100

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.

Filters

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

    Sky Rover 25mm 65° Premium Flat Field Eyepiece

    Sky Rover
    More on the way

    You know the feeling: you point your telescope at the Orion Nebula and frame it in the low-power eyepiece, but the edges of the nebula are soft and...

    View full details
    $40.00 - $40.00
    $40.00
    $40.00 - $40.00
    $40.00
  • 9mm 120° field argon-purged waterproof 2" eyepiece
    Save $400.99 Save $0.00
    $1,299.99
    $1,299.99 - $1,299.99
    $1,299.99
    $899.00
    $899.00 - $899.00
    $899.00

    Explore Scientific 9mm 120° field argon-purged waterproof 2" eyepiece

    Explore Scientific
    More on the way

    A first from Explore Scientific, this 2" 9mm deep sky eyepiece has an immense 120° field that seems to make your telescope disappear and plunge you...

    View full details
    $1,299.99
    $1,299.99 - $1,299.99
    $1,299.99
    $899.00
    $899.00 - $899.00
    $899.00
    Save $400.99 Save $0.00
  • 12mm Brandon "flat top"
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

    Vernonscope 12mm Brandon "Flat Top" Eyepiece

    Vernonscope
    More on the way

    The 12mm Vernonscope Brandon "flat top" eyepiece is designed for high power use with any telescope type, at focal ratios f/7 and above. It provides...

    View full details
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00
  • $109.00 - $109.00
    $109.00
    $109.00 - $109.00
    $109.00

    Sky Rover 18mm 65° Ultra Flat Field Eyepiece

    Sky Rover
    In Stock

    The telescope's job is to gather light and converge it. The eyepiece's job is to put it where you can see it without the field falling apart. At 18...

    View full details
    $109.00 - $109.00
    $109.00
    $109.00 - $109.00
    $109.00
  • $546.00 - $546.00
    $546.00
    $546.00 - $546.00
    $546.00

    Pentax 23mm XW Extra Wide Angle Eyepiece

    Pentax
    In Stock

    This medium focal length Pentax provides sharp and very wide field images for both terrestrial and astronomical observing. Terrestrially, it is an ...

    View full details
    $546.00 - $546.00
    $546.00
    $546.00 - $546.00
    $546.00
  • $526.00 - $526.00
    $526.00
    $526.00 - $526.00
    $526.00

    Pentax 16.5mm XW Extra Wide Angle Eyepiece

    Pentax
    In Stock

    This medium focal length Pentax is a dual-purpose eyepiece for both terrestrial and astronomical observing. Terrestrially, it is an excellent moder...

    View full details
    $526.00 - $526.00
    $526.00
    $526.00 - $526.00
    $526.00
  • Celestron Ultima Edge 24mm 1.25-inch eyepiece with 70-degree apparent field of view
    $259.95 - $259.95
    $259.95
    $259.95 - $259.95
    $259.95

    Celestron Ultima Edge 24mm 1.25" Eyepiece 93453

    Celestron
    In Stock

    Celestron Ultima Edge 24mm 1.25" Eyepiece – Flat Field Precision with Comfortable Eye Relief If you’re searching for a premium wide-angle eyepiece ...

    View full details
    $259.95 - $259.95
    $259.95
    $259.95 - $259.95
    $259.95
  • Celestron Ultima Edge 10mm 1.25-inch eyepiece with 70-degree apparent field of view
    $109.95 - $109.95
    $109.95
    $109.95 - $109.95
    $109.95

    Celestron Ultima Edge 10mm 1.25" Eyepiece 93450

    Celestron
    In Stock

    Celestron Ultima Edge 10mm 1.25" EyepieceFlat-field performance and high-power precision in a compact, premium design If you're looking for a high-...

    View full details
    $109.95 - $109.95
    $109.95
    $109.95 - $109.95
    $109.95
  • 32mm Brandon "flat top"
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

    Vernonscope 32mm Brandon "Flat Top" Eyepiece

    Vernonscope
    More on the way

    The 32mm Vernonscope Brandon "flat top" eyepiece is designed for nigh-perfect low power deep sky observing with any telescope type, at focal ratios...

    View full details
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00
  • 24mm Brandon "flat top"
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

    Vernonscope 24mm Brandon "Flat Top" Eyepiece

    Vernonscope
    More on the way

    The 24mm Vernonscope Brandon "flat top" eyepiece is designed for nigh-perfect medium power deep sky observing with any telescope type, at focal rat...

    View full details
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00
  • 8mm Brandon "flat top"
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

    Vernonscope 8mm Brandon Flat Top Eyepiece

    Vernonscope
    More on the way

    The 8mm Vernonscope Brandon "flat top" eyepiece is designed for high power use with any telescope type, at focal ratios f/7 and above. It provides ...

    View full details
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00
  • 2" 48mm Brandon
    $375.00 - $375.00
    $375.00
    $375.00 - $375.00
    $375.00

    Vernonscope 2" 48mm Brandon Eyepiece

    Vernonscope
    More on the way

    The 2" 48mm Vernonscope Brandon eyepiece is designed for nigh-perfect low power deep sky observing with any telescope type that can use 2" eyepiece...

    View full details
    $375.00 - $375.00
    $375.00
    $375.00 - $375.00
    $375.00
  • 16mm Brandon
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

    Vernonscope 16mm Brandon Eyepiece

    Vernonscope
    More on the way

    The 16mm Vernonscope Brandon eyepiece is designed for medium power high contrast/dark sky background use with any telescope type, at focal ratios f...

    View full details
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00
  • $269.00 - $269.00
    $269.00
    $269.00 - $269.00
    $269.00

    Sky Rover XWA 7mm 100° Ultra Wide Angle Eyepiece

    Sky Rover
    More on the way

    The 7mm is where high-power observing starts to become practical. It’s the focal length most observers reach for when they want real detail without...

    View full details
    $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 15mm 65° Ultra Flat Field Eyepiece

    Sky Rover
    In Stock

    The 15mm focal length is where observing divides into two worlds: low enough to give you genuine context and field of view, high enough to show rea...

    View full details
    $109.00 - $109.00
    $109.00
    $109.00 - $109.00
    $109.00
  • Celestron Observer’s Accessory Kit open case with eyepieces and filters
    $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95

    Celestron 1.25" Observers Accessory Kit

    Celestron
    In Stock

    Celestron 1.25" Observer’s Accessory Kit (#94308) If you’re just starting out with a telescope or looking to upgrade your basic accessories, the Ce...

    View full details
    $159.95 - $159.95
    $159.95
    $159.95 - $159.95
    $159.95
  • 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...

    View full details
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00
  • 16mm Brandon "flat top"
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

    Vernonscope 16mm Brandon "Flat Top" Eyepiece

    Vernonscope
    More on the way

    The 16mm Vernonscope Brandon "flat top" eyepiece is designed for medium power high contrast/dark sky background use with any telescope type, at foc...

    View full details
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00
  • 23mm 2" 82° Luminos
    $249.95 - $249.95
    $249.95
    $249.95 - $249.95
    $249.95

    Celestron 23mm 2" 82° Luminos Eyepiece

    Celestron
    In Stock

    This 2" Celestron Luminos 23mm eyepiece is a six-lens design with a very wide 82° field and minimal field curvature. This makes it particularly wel...

    View full details
    $249.95 - $249.95
    $249.95
    $249.95 - $249.95
    $249.95
  • 8mm Brandon
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

    Vernonscope 8mm Brandon Eyepiece

    Vernonscope
    More on the way

    The 8mm Vernonscope Brandon eyepiece is designed for high power use with any telescope type, at focal ratios f/7 and above. It provides highly deta...

    View full details
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00
  • 32mm Brandon
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

    Vernonscope 32mm Brandon Eyepiece

    Vernonscope
    More on the way

    The 32mm Vernonscope Brandon eyepiece is designed for nigh-perfect low power deep sky observing with any telescope type, at focal ratios f/7 and ab...

    View full details
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00
  • 24mm Brandon
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

    Vernonscope 24mm Brandon Eyepiece

    Vernonscope
    More on the way

    The 24mm Vernonscope Brandon eyepiece is designed for nigh-perfect medium power deep sky observing with any telescope type, at focal ratios f/7 and...

    View full details
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00
  • 12mm Brandon
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00

    Vernonscope 12mm Brandon Eyepiece

    Vernonscope
    More on the way

    The 12mm Vernonscope Brandon eyepiece is designed for high power use with any telescope type, at focal ratios f/7 and above. It provides highly det...

    View full details
    $279.00 - $279.00
    $279.00
    $279.00 - $279.00
    $279.00
  • Save $16.35 Save $0.00
    $109.00
    $109.00 - $109.00
    $109.00
    $92.65
    $92.65 - $92.65
    $92.65

    Sky Rover 15mm 65° Ultra Flat Field Eyepiece NEAF DEMO

    Sky Rover
    In Stock

    The 15mm focal length is where observing divides into two worlds: low enough to give you genuine context and field of view, high enough to show rea...

    View full details
    $109.00
    $109.00 - $109.00
    $109.00
    $92.65
    $92.65 - $92.65
    $92.65
    Save $16.35 Save $0.00

Compare products

{"one"=>"Select 2 or 3 items to compare", "other"=>"{{ count }} of 3 items selected"}

Select first item to compare

Select second item to compare

Select third item to compare

Compare