2" 20mm 100 Degree Argon-Purged Waterproof Eyepiece
$799.99
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2" 20mm 100 Degree Argon-Purged Waterproof Eyepiece
$799.99
20mm Focal Length
Deep sky wide field views
100° Hyper-Wide FOV
Immersive astronomy visual experience
Waterproof Design
Argon purged optical protection
2.0 Inch Barrel
Fits standard telescope focusers
Comfortable Eye Relief
14.5mm for relaxed observing
34.8mm Field Stop
Maximizes clear light transmission
Unmatched Celestial ViewsTransform Your Stargazing Observation Experience
The Explore Scientific 100° 20mm Waterproof Eyepiece offers an unmatched hyper-wide viewing experience designed to transform your visual astronomy sessions. Featuring a breathtaking 100-degree apparent field of view, this premium telescope eyepiece lets you effortlessly observe deep-sky objects with incredible clarity and contrast.
Immersive Deep-Sky ObservationExperience The Cosmos Without Boundaries
Elevate your stargazing capabilities with the Explore Scientific 100° 20mm Waterproof Eyepiece. Engineered with high-index optical glass and fully multi-coated elements, this astronomy ocular keeps faint nebulae and star clusters framed in your field of view for extended periods, especially on non-driven manual telescope mounts. Its waterproof, gas-purged construction protects against internal fogging and ambient moisture, while the generous 14.5mm eye relief ensures comfortable extended viewing sessions whether observing directly or using averted vision techniques.
Technical SpecificationsPrecision Optical Engineering Data
Item Number
EPWP10020–00 (hash)
Focal Length
20mm
Apparent Field of View
100°
Barrel Size
2.00"
Eye Relief
14.5mm
Field Stop Diameter
34.8mm
Length
156mm
Width
70mm
Weight
38.1 oz / 968 g
Waterproofing
Waterproof / Gas Purged
Key Eyepiece FeaturesDesigned For Ultimate Visual Comfort
Apparent Field of View100° hyper-wide angle for immersive stargazing
Focal Length20mm focal length ideal for deep-sky observation
WaterproofingArgon-purged waterproof construction prevents internal fogging
Barrel DiameterStandard 2.00-inch barrel size for wide compatibility
Eye Relief14.5mm eye relief for comfortable extended viewing sessions
Averted Vision OptimizationDesigned to maximize brightness for faint celestial objects
Frequently Asked QuestionsEverything you need to know
What telescope focuser size is required for the Explore Scientific 100° 20mm Waterproof Eyepiece?
The Explore Scientific 100° 20mm Waterproof Eyepiece features a standard 2.00-inch barrel, requiring a telescope equipped with a 2-inch focuser or visual back.
Is the Explore Scientific 100° 20mm Waterproof Eyepiece protected against weather and moisture?
Yes, the Explore Scientific 100° 20mm Waterproof Eyepiece is fully waterproof and gas-purged to prevent internal fogging and protect internal optical elements from dust and fungus.
How does the 100° field of view benefit manual telescope observing with the Explore Scientific 100° 20mm Waterproof Eyepiece?
The hyper-wide 100° apparent field of view in the Explore Scientific 100° 20mm Waterproof Eyepiece allows objects to remain visible in the viewing area significantly longer before needing to adjust a manual mount.