The Explore Scientific 100° Series 14mm Waterproof Eyepiece delivers an unmatched immersive viewing experience, transforming your telescope into a cosmic porthole. With a staggering 100° apparent field of view, this eyepiece expands your visual universe, offering both breathtaking vistas and the ability to track objects longer in non-driven telescopes.
Whether you’re observing galaxies, nebulae, or planetary detail, this eyepiece’s wide field and 14mm focal length strike the perfect balance between magnification and panoramic framing. It’s also ideal for using averted vision, a technique where observing faint objects slightly off-center improves visibility by engaging the eye’s more sensitive peripheral receptors.
Built to endure the elements, each unit is argon-purged and waterproof, with sealed internals that prevent fogging and preserve optical coatings. Every eyepiece is submersion-tested to 1 meter for 30 minutes, guaranteeing reliable performance in any environment. And like all Explore Scientific premium oculars, it’s outfitted with fully multi-coated, edge-blackened optics for maximum contrast and clarity.
CA Residents: Prop 65 WARNING(S)
⭐ Features & Benefits
- 100° apparent field of view for a truly immersive, spacewalk-like observing experience
- 14mm focal length balances field width and magnification—ideal for deep sky and lunar targets
- Argon-purged waterproof housing prevents internal fogging and resists dust/moisture intrusion
- Fully multi-coated lenses with edge-blackened elements for optimal brightness and contrast
- Excellent for averted vision, improving detection of faint objects like galaxies and nebulae
- Submersion-tested to 1 meter for 30 minutes for verified waterproof performance
- Comfortable, relaxed eye positioning ideal for extended observing sessions
🌟 Who It’s For
- Deep-sky observers looking for wide-field performance with high contrast
- Astronomers using Dobsonians or non-tracking telescopes
- Eyeglass wearers and anyone needing long observing comfort
- Hobbyists wanting to maximize visual impact with a single eyepiece
- Viewers who use averted vision techniques for faint object detection
🎯 What You’ll Be Able to See
- Expansive star fields and open clusters with rich clarity
- Faint galaxies and nebulae, like the Andromeda Galaxy or Lagoon Nebula
- Lunar surface detail with wide context and crisp resolution
- Planetary nebulae and globular clusters with immersive framing
🎒 What’s Included
- Explore Scientific 14mm 100° Series Waterproof Eyepiece
- Dust caps (top and bottom)
- Protective bolt-style eyepiece case
- Warranty card and user documentation
Specs
| Item Number | EPWP6840–01 |
|---|---|
| Focal Length | 40mm |
| Apparent Field | 68° |
| Eye Relief | 31mm |
| Field Stop Diameter | 45.5mm |
| Barrel Size | 2.00" |
| Length | 114.2mm |
| Width | 80.3mm |
| Weight | 35.2 oz / 998g |
| Waterproofing | Argon Purged / O-Ring Sealed |
| Eyecup | Removable Flip-Down Silicone Rubber |
Warranty Information:
This product includes a Limited One-Year USA Warranty, which converts to the Explore STAR Transferable Extended Life of the Product Warranty when registered within 60 days of purchase.
To activate your warranty, register your product at:
www.explorescientific.com/pages/product-registration