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Explore Scientific 40 mm 62º Argon-Purged Waterproof Eyepiece - 2" - EPWP6240LE-01

Explore Scientific 40 mm 62º Argon-Purged Waterproof Eyepiece - 2" - - Main image
$179.79 $289.99 In stock

Category: Telescope Eyepieces

Explore Scientific 40 mm 62º Waterproof Eyepiece - 2"


This 40 mm Argon-Purged Waterproof Eyepiece by Explore Scientific features a near parfocal design and apparent field of view of 62º  for a quality eyepiece at an affordable price. A superb multi-element flat-field ocular, this eyepiece revolutionizes the visual astronomy experience.

An extra advantage provided by this eyepiece is its excellent contrast which permits the use of averted vision. This allows you to gaze slightly to either side of an object, instead of restricting you to only looking directly at it. This ability is especially beneficial when viewing faint objects as the image can be put on an area of your eye with higher sensitivity to light, enhancing their clarity.

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Customer Reviews (4.6 / 5 · 5 reviews)

Daniel N. ★★★★★

I was able to see all four of Jupiter's moons at once with this eyepiece—the 62-degree field made finding them effortless. The waterproofing gives me peace of mind during humid nights.

Isabella T. ★★★★★

The 62-degree field makes sweeping the Milky Way feel effortless on my 8-inch scope, and the argon purging gives me total peace of mind during damp nights. Focus holds steady across the view, and the near-parfocal design means I rarely touch the knob between eyepieces.

Carter X. ★★★★★

I use this eyepiece on my 10-inch Dobsonian, and the argon purging gives me peace of mind during dewy nights—no fogging at all. The 62° field is wide and crisp, making globular clusters look like they’re floating in space. It’s a solid upgrade for deep-sky observing.