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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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Tele Vue 31mm 2" Nagler Type 5

$697.01

15 Review(s)

This Nagler Type Five eyepiece uses a new six-lens design that reduces the size and weight of this 31mm eyepiece to less than that of the previous generation 20mm Nagler . . .
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Explore Scientific 2" 3x Focal Extender (Barlow)

$299.99

Increase your eyepiece magnification by 3x

2" barrel diameter

Keeps eyerelief consistent
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Tele Vue 4X Powermate image amplifier for 2" eyepieces, with 1.25" eyepiece adapter

$349.01

6 Review(s)

If you need a very high quality, very high power 4x Barlow for 2" eyepieces, look no further than this TeleVue Powermate. While not technically a Barlow, this unique new 4-lens image amplifier performs the same functions, but at a higher level of optical correction.
Barlow lenses have a negative power that diverges field rays, lengthening the effective focal length of the telescope and increasi . . .
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Explore Scientific 20mm 100° field waterproof 2" eyepiece

$799.99

11 Review(s)

The 100° apparent field of the Explore Scientific 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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Explore Scientific 9mm 120° field argon-purged waterproof 2" eyepiece

$1,299.99

1 Review(s)

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 headfirst into the Universe . . .
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Explore Scientific 28mm 68° field argon-purged waterproof 2" eyepiece

$299.99

10 Review(s)

This Explore Scientific 28mm argon-purged is a substantial 2" eyepiece that gives impressively sharp and contrasty wide field views of nebulas, compact open clusters, globular clusters, etc. with virtually any telescope that can use 2" eyepieces.
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Explore Scientific 30mm 82° field argon-purged waterproof 2" eyepiece

$499.99

10 Review(s)

This 82° field Explore Scientific 30mm 2" argon-purged waterproof eyepiece gives you the big picture, making you feel like you're relaxing in front of an expansive picture window on the Universe, rather than squinting through an eyepiece.
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40mm XW extra wide angle 2" eyepiece

$399.00

This long focal length 2" Pentax eyepiece is outstanding for low power/wide field astronomical observing with long focal length refractors and catadioptric telescopes . . .
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Explore Scientific 62° 40mm 2" Waterproof Eyepiece

$289.99

2 Review(s)

Explore Scientific Waterproof Eyepieces - Comfort, Quality, Value.
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Tele Vue 35mm 2" Panoptic

$427.01

16 Review(s)

An excellent and physically-impressive premium-quality low power wide field 2" eyepiece for the serious deep space explorer. It will give you a wide 1.19 degree field at 57x with a big 17.5" f/4.5 Dobsonian. That's well over two lunar diameters and is ideal for observing large emission nebulas . . .