Explore Scientific
888-599-7597; www.explorescientific.com

Explore Scientific expands its line of ultra-wide-field eyepieces with the introduction of a 20-mm 100º Series Nitrogen-Purged Waterproof Eyepiece (introductory price: $499). Like its 14-mm predecessor, this new 2-inch ocular presents pinpoint stars across the entire field. The Eyepiece’s nitrogen-purged, waterproof design prevents dust, moisture, and cleaning solutions from seeping into the inner optical surfaces, rendering the eyepiece impervious to internal fungus. Explore Scientific guarantees each purchase with a 5-year transferable limited warranty.

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