92° Series Waterproof Telescope Eyepieces

The 92° Series Waterproof Eyepieces offer an ultra-wide field of view with exceptional clarity and long eye relief for comfortable, immersive observing. Fully multi-coated and argon-purged, these eyepieces deliver sharp, high-contrast views while resisting fog and moisture. Ideal for deep-sky exploration and planetary observation, they’re built for serious visual astronomers who want expansive views without sacrificing comfort.

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92° Series Long Eye Relief Waterproof Eyepieces

The Explore Scientific 92° Series pairs an enormous 92-degree apparent field of view with long eye relief (LER), making these eyepieces exceptionally comfortable to use, even for observers who wear eyeglasses. Long eye relief lets you see the full, expansive field without pressing your eye against the lens, so you can relax and take in the view during extended observing sessions.

Built with waterproof, gas-purged construction and premium multi-coated optics, the 92° Series delivers bright, high-contrast images that make star clusters, nebulae and the Milky Way feel truly immersive. The ultra-wide field also keeps objects in view longer on Dobsonians and other manual telescopes. For astronomers who want ultra-wide performance without sacrificing comfort, the 92° Series LER eyepieces are among the most comfortable wide-field telescope eyepieces available.

The long eye relief design makes the 92° Series a particularly good choice for observers with astigmatism who need to keep their glasses on, and for anyone who wants a relaxed viewing position during long sessions at the eyepiece. Because of their size, they are best suited to telescopes with 2-inch focusers and stable mounts. Many deep-sky observers use a 92° eyepiece as their main sweeping eyepiece on a Dobsonian telescope, enjoying panoramic views of star clouds, open clusters and bright nebulae with exceptional comfort.