6.7mm 82° field argon-purged waterproof 1.25" eyepiece

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This 82° 6.7mm Explore Scientific is an excellent short focal length/ultra wide field eyepiece with an unusual benefit. It is O-ring sealed and argon-purged to be 100% waterproof. This prevents internal fogging in the eyepiece; keeps the interior dust-and fungus-free; and makes it easier to clean, as there is no risk of excess cleaning solution getting trapped between the lenses.

The latest computer design programs have been used to optimize its performance. Its seven element/four group design uses low dispersion and high refractive index lenses and full multicoatings for high contrast, high resolution, and flat field images across a very wide 82° field of view. The lens edges have been blackened to improve contrast.

The 6.7mm 82° Explore Scientific works with any telescope from a fast focal ratio reflector to a long focal length refractor. It’s particularly good with Dobsonians and fast focal ratio refractors, providing high magnification with a very wide field of view for observing globular clusters and compact nebulas.

At 14mm, the eye relief is surprisingly good for such a short focal length eyepiece, although eyeglass wearers will still see a somewhat vignetted image. This isn’t as much a problem as you might think, as the 82° field of view is so wide that even non-eyeglass wearers have trouble seeing the whole field at once. This is an eyepiece that shows you a “picture window view” of space for a true full-immersion observing experience. With its unconstricted view, your eye relaxes, allowing you to easily use the “averted vision” technique to study faint details across a huge field of view.

You can use the calculator in the "formula" tab above to see just how wide the field will be with your particular telescope. For example, it will give you a 0.77° field (half again as wide as the full Moon) at 106x with a 4" f/7 refractor like the Explore Scientific 102mm triplet apo refractor.

The eyepiece has a soft fold-down rubber eyecup and comes with dust covers for both ends of the eyepiece.

This individually serial numbered Explore Scientific eyepiece is backed by a limited one year warranty, which will be extended to an Explore Scientific transferable lifetime limited warranty when its warranty card is registered with Explore Scientific within 60 days of purchase.  This link will take you to full details on this unique transferable lifetime warranty.

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Telescope Eyepiece Formula
To calculate the magnification and approximate actual field of view of this eyepiece on your telescope, enter the focal length of your telescope below and press the "Calculate" button.

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6.7mm 82° field argon-purged waterproof 1.25" eyepiece

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6.7mm 82° field argon-purged waterproof 1.25" eyepiece
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Our Product #: ES8206A
Manufacturer Product #: EPWP8267-01
Price: $139.99  FREE ground shipping - Click for more info
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MSRP: $311.99
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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.





. . . our 34th year