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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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Explore Scientific 2X Barlow for 2" eyepieces, with 1.25" adapter

$229.99

5 Review(s)

This new four-element 2" 2x Explore Scientific focal extender (Barlow lens) has a 1.25" eyepiece adapter so you can use both 2" and 1.25" eyepieces in your 2" focuser . . .
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Explore Scientific 30mm 52° Series Waterproof Eyepiece

$149.99

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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Explore Scientific 16mm 68° field argon-purged waterproof 1.25" eyepiece

$219.99

2 Review(s)

This Explore Scientific 16mm argon-purged eyepiece is a truly fine medium power eyepiece with a substantial 68° field of view that can provide a comfortable "picture window onto space" viewing experience with virtually any telescope type.
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Explore Scientific 40mm 68° field argon-purged waterproof 2" eyepiece

$519.99

4 Review(s)

If you have room in your observing kit for only one long focal length wide angle eyepiece, this Explore Scientific 40mm argon-purged eyepiece may well be the one eyepiece for you.
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Explore Scientific 6.7mm 82° field argon-purged waterproof 1.25" eyepiece

$229.99

13 Review(s)

This high power 6.7mm Explore Scientific 82° argon-purged waterproof eyepiece will show you surprisingly wide deep space panoramas, even with short focal length/fast focal ratio refractors and Dobsonian scopes.
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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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Explore Scientific 62° 20mm 1.25" Waterproof Eyepiece

$149.99

2 Review(s)

Explore Scientific Waterproof Eyepieces - Comfort, Quality, Value.
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Explore Scientific 3mm 52° Series Waterproof Eyepiece

$89.99

1 Review(s)

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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Explore Scientific 3X Barlow for 1.25" eyepieces

$209.99

7 Review(s)

This new four-element 1.25" 3x Explore Scientific focal extender (Barlow lens) triples the power of any eyepiece used with it, with flat-field and essentially apochromatic performance . . .
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Explore Scientific 20mm 52° Series Waterproof Eyepiece

$119.99

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.