100° 20mm Waterproof Eyepiece
These eyepieces with their huge apparent field of view not only gave the observer a panoramic visual experience, but they relax the eye so the observer could pay attention to subtle details for extended periods. These ultra-wide angle eyepieces played a critical role in the military for aiming at targets, and their long eye-relief counterparts helped reduce eye injury from recoil.
Each 100° Series Argon-Purged Waterproof eyepiece is internally sealed and purged with inert, dry nitrogen 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. All 100° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
- Huge apparent field of view not only gave the observer a panoramic visual experience, but they relax the eye so the observer could pay attention to subtle details for extended periods.
- Each 100° Series Argon-Purged Waterproof eyepiece is internally sealed and purged with inert, dry argon gas.
- This also maximizes the life of the internal coatings.
- Every 100° eyepiece is tested by submerging them down to 1 meter of water for 30 minutes.
- All 100° Series eyepieces are fully multi-coated and edge-blackened to produce maximum contrast.
Deals on this item:
• Free Shipping on this item!
• Get 20% off your first order when you sign up for our newsletter.
• Matter subscribers, don't forget to use your 15% storewide discount on every order.
Your Purchase Does More:
Science Education Programs:Every purchase helps fund our guest lectures, science fairs, and community science clubs — bringing real scientific literacy to curious minds of all ages.
Sustainable Small Business: We partner with agroforestry and carbon capture organizations to keep our entire emissions footprint net negative — not just neutral.
Independent Researchers:We source directly from active research labs, so your purchase puts money back into the hands of working scientists.