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Eyepieces & Barlows

The first accessories people buy for their telescope are additional eyepieces or a Barlow, to increase the magnification possibilities of their new scope. If you already know all about eyepieces and Barlows, you can click on the appropriate manufacturers below to find descriptions, specifications, pictures, and pricing on all the eyepieces and Barlows we carry.

If you're new to astronomy, or have questions about which eyepieces or Barlows are best for your scope, click on the "How to pick an eyepiece" and "How to pick a Barlow" sections for more practical information about choosing these optical accessories than you really wanted to know.

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Save $52.45

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Astro-Tech 20mm 100° field waterproof XWA 2" eyepiece

Regular Price: $299.95

Special Price $247.50

2 Review(s)

The 100° apparent field of the Astro-Tech 20mm waterproof 2" eyepiece provides superb maximum field/medium power observing in all scopes, from small apo refractors to the largest Dobsonians and catadioptrics . . .
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Celestron Kit of 2" eyepieces and visual accessories

$399.95

2 Review(s)

This kit consists of eleven Celestron 2" visual accessories that will get you started observing right with your new Celestron telescope - or any brand of telescope . . .
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Celestron 19mm 2" 82° Luminos

$209.95

7 Review(s)

This 19mm Celestron Luminos eyepiece has a wide and flat 82° field of view for medium power "picture window" views and is superb for Celestron EdgeHD and Meade Advanced Coma-Free catadioptrics, 2" focuser Dobsonians, and short focal length flat field refractors . . .
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Explore Scientific 18mm 82° field argon-purged waterproof 2" eyepiece

$319.99

8 Review(s)

This 82° field Explore Scientific 18mm 2" argon-purged waterproof eyepiece makes observing with many telescopes feel like you're taking a stroll through the cosmos rather than looking through an eyepiece.
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Explore Scientific 17mm 92° field argon-purged waterproof 2" eyepiece

$799.99

8 Review(s)

This 2" 17mm 92° field Explore Scientific hyper-wide eyepiece provides an exceptional medium focal length immersive observing experience.
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Tele Vue 55mm Plössl

$255.01

4 Review(s)

If you have a 2" focuser on your f/8 and longer focal ratio telescope, this 2" eyepiece will give you the widest possible field of view - even wider than a 31mm Nagler, but at less than 40% the cost . . .
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Explore Scientific 40mm 52° Series Waterproof Eyepiece

$179.99

Looking for something out of the ordinary for your next eyepiece? The Explore Scientific 52° series is a strong contender for necessary addition to your eyepiece collection.
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Tele Vue 2X Big Barlow for 2" eyepieces, with 1.25" eyepiece adapter

$228.01

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 diagonals for 2x magnification.
It can also be placed into a 2" focuser in front of a 2" star diagonal to give higher magnification than the nominal 2x. Some refractors might not have enough focuser travel to allow this directly, however. . . .
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Tele Vue 21mm 2" 100° field Ethos

$893.01

5 Review(s)

The 100° apparent field of this new TeleVue 21mm Ethos eyepiece provides a field area 64% larger than the "space-walking" 82° field of a 20mm Nagler, and 36% larger than a 22mm Nagler . . .
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2" 48mm Brandon

$375.00

3 Review(s)

This 2" 48mm Vernonscope Brandon eyepiece seems to disappear in your telescope, like looking at the sky with your bare eye, only with everything larger and sharper, as if the telescope and eyepiece didn't exist . . .