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Using advanced computer design, combinations of low dispersion and high refractive index optical glasses, and durable multilayer deposition coatings. Explore Scientific 100° Series hyper-wide field eyepieces are optimized to produce high contrast, high resolution, and superior flat field characteristics. And yes, they are indeed ruggedized and waterproof to withstand the outdoor environment.

The visual effect of these eyepieces with their long eye-relief and their 100° apparent field is an extreme full-immersion experience. You have to try it understand the visual impact that these eyepieces produce.

Like all Explore Scientific eyepieces, the lens elements of the 100° eyepiece are meticulously cleaned and aligned before being installed in their precision machined lens barrels.

Each lens and lens grouping have EMD (Enhanced Multilayer Deposition) Coatings and are edge-blackened to eliminate light scatter and maintain image contrast. Contrast is further enhanced with baffles that mask and deflect unwanted stray light.

Each 100° Series Argon-Purged Waterproof eyepiece is internally sealed and purged with inert, dry argon gas to prevent internal fogging, to halt the intrusion of fine particulates and fungus, and to maximize the life of the internal coatings. To make sure, every 100° eyepiece is tested by submerging them down to 1 meter of water for 30 minutes.

Eyepiece SeriesExplore Scientific 100° Waterproof SeriesFocal Length5.5mmBarrel Size2" (50.8mm)Apparent Field of View (Mfg Specified)100°Filter ThreadsStandard 2" Filter Thread (M48 x 0.75)Eye Relief12.5mmCoatingsEMD (Enhanced Multilayer Deposition) CoatingsLens ElementsLens GroupsBlackend Lens EdgesYesBarrel TypeTapered barrelHeight (With Eyeguard Extended)Rubber Eye GuardRubber Folding TypeWeight1lb - 5.2oz

Filed under: Eyepieces & Accessories