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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 $58.00

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Explore Scientific 34mm 68° field argon-purged waterproof 2" eyepiece

Regular Price: $289.99

Special Price $231.99

1 Review(s)

This Explore Scientific 34mm argon-purged 2" is a big eyepiece - big in size, big in weight, big in field of view, big in performance. It gives you impressively sharp high contrast images with virtually any telescope with a focal ratio of f/5 and above that uses 2" eyepieces.
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Tele Vue 17mm 2" Nagler Type 4

$397.01

10 Review(s)

The TeleVue 2" 17mm Nagler Type 4 is a premium-quality eyepiece that further refines the "spacewalk" observing experience of the original Nagler and Nagler Type 2 eyepieces that have been the optical standard of the industry for years . . .
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Explore Scientific 9mm 100° field argon-purged waterproof 2" eyepiece

$499.99

8 Review(s)

The Explore Scientific 9mm argon-purged waterproof 2" eyepiece combines a high power capability with a 100° apparent field to provide a jaw-dropping observing experience in scopes ranging from small refractors to the largest Dobsonians and catadioptrics.
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Tele Vue 35mm 2" Panoptic

$389.01

11 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 . . .
Save $100.00

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Explore Scientific 17mm 92° field argon-purged waterproof 2" eyepiece

Regular Price: $499.99

Special Price $399.99

5 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 2X Powermate image amplifier for 2" eyepieces, with 1.25" eyepiece adapter

$326.01

8 Review(s)

If you need a very high quality 2x 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 increasing the magnification . . .
Save $30.00

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Explore Scientific 62° 32mm 2" Waterproof Eyepiece

Regular Price: $149.99

Special Price $119.99

1 Review(s)

Explore Scientific Waterproof Eyepieces - Comfort, Quality, Value.
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Astro-Tech 2X achromatic Barlow for 1.25" eyepieces

$29.95

4 Review(s)

This physically short (3.1") Astro-Tech 2x achromatic Barlow is an inexpensive way to cleanly double the power of any 1.25" eyepiece in your collection . . .
Save $180.00

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

Regular Price: $899.99

Special Price $719.99

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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Meade 20mm Series 5000 2" Ultra Wide Angle waterproof

$149.00

7 Review(s)

This new waterproof Meade 82° field 20mm Ultra Wide is an exceptional medium power ultra wide field 2" eyepiece for "picture window on space"views with fast focal ratio/short focal length scopes such as fast apo refractors or Dobsonian reflectors . . .