Explore Scientific 82° Series 1.25" 8.5mm LER Waterproof Eyepiece

Explore Scientific 82° Series 1.25" 8.5mm LER Waterproof EyepieceThe 82 Series 8. 5mm LER hits the sweet spot of magnification and field width for high power deep sky observing, with Long Eye Relief that keeps extended sessions comfortable. The 82 field frames planetary nebulae, globular clusters, and tight galaxy groups with surrounding context that narrower eyepieces lose. Lanthanum glass optics and waterproof construction at $139 make this a standout value. Key Features 82 apparent field of view ultra wide

The 82° Series 8.5mm LER hits the sweet spot of magnification and field width for high-power deep-sky observing, with Long Eye Relief that keeps extended sessions comfortable. The 82° field frames planetary nebulae, globular clusters, and tight galaxy groups with surrounding context that narrower eyepieces lose. Lanthanum glass optics and waterproof construction at $139 make this a standout value.

Key Features

• 82° apparent field of view — ultra-wide framing that provides context around your target and makes object-finding intuitive
• Long Eye Relief (LER) design — comfortable working distance for long sessions and easy eyeglass compatibility
• 7-element lanthanum glass optics — precision glass delivers sharp, color-corrected images to the field edge
• Argon-purged waterproof housing — sealed against moisture and fog for reliable all-weather observing
• Enhanced Multi-Layer Deposition (EMD) coatings on all air-to-glass surfaces with edge-blackened elements
• Fold-down silicone rubber eyecup and 1.25" barrel for standard telescope compatibility

Ideal For

• Deep-sky observers who want high-power views of planetary nebulae, globular clusters, and compact galaxy groups within an ultra-wide field
• Planetary observers who prefer moderate-high magnification with more sky context than standard eyepieces provide
• Eyeglass wearers who value the LER design for comfortable, full-field access at shorter focal lengths