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Explore Scientific 68 Degree Series 40mm Argon-Purged Waterproof Eyepiece, 2" Barrel
SKU: ESEPWP684001 MFR: EPWP6840-01
$519.99
$623.98
Save: $103.99 (17%)OR
Key Features
- Enjoy wide, immersive views with this 40mm telescope eyepiece, perfect for deep-sky observing.
- Experience comfortable viewing sessions with the eyepiece's generous 31mm eye relief.
- The 68-degree apparent field of view of this Explore Scientific eyepiece reveals stunning details.
- This 2" barrel eyepiece is argon-purged and waterproof for reliable performance in any weather.
- Achieve optimal image quality with this multi-coated telescope eyepiece, enhancing contrast.
- Weighing just 35.2oz, this portable 40mm eyepiece is great for astronomy on the go.
Special Order?Estimated to Ship: 12/19/2025
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About Explore Scientific 68 Deg. 40mm Argon-Purged Waterproof Eyepiece, 2" Barrel
FEATURED REVIEWS
easy to view
so nice to view with . heavy yes but worth it.
Why settle for less when you can experience the cosmos in unparalleled detail with the Explore Scientific 68 Degree Series 40mm Argon-Purged Waterproof Eyepiece This high-quality eyepiece is meticulously designed for astronomy enthusiasts who value longer eye relief without compromising on a wide field of view. Unlike traditional Plossl or Orthoscopic style eyepieces, this model offers an expansive 68-degree field of view, allowing you to immerse yourself in the celestial spectacle.
Ideal for eyeglass wearers, the eyepiece features an extra-long eye relief, enabling you to keep your glasses on while observing. This thoughtful design ensures a comfortable and convenient viewing experience, even during extended stargazing sessions.
The eyepiece is not just about comfort, it's about enhancing your viewing experience. It boasts enhanced EMD coatings, which significantly improve contrast, allowing you to discern even the faintest celestial objects that your telescope can capture.
Moreover, the eyepiece is argon-purged and waterproof, ensuring its longevity and performance even in challenging weather conditions. The rubber grip and folding eyecup add to its ergonomic design, making it a reliable companion for your astronomical explorations.
In essence, the Explore Scientific 68 Degree Series 40mm Argon-Purged Waterproof Eyepiece is your gateway to lowering the power on your telescope, increasing the exit pupil size, and unlocking the full potential of your stargazing experience.
Explore Scientific 68 Deg. 40mm Argon-Purged Waterproof Eyepiece, 2" Barrel Features
- Optimized Optical Design: Explore 68 Degree Series 40mm Eyepiece is optimized through each design, fabrication and testing process to produce high contrast, high resolution image
- Durable Coatings and Finishing Touch: Each element in your Explore Scientific 68 Degree Series 40mm eyepiece is fully multi-coated, resulting in bright, sharp images and every element has blackened edges to reduce internal reflections and increase contrast
- Waterproof, Fog Proof Housing: The internal optics of 68 Degree Series 40mm eyepiece is housed in a gas purged, waterproof barrel that keeps them as pristine as the day they were manufactured
- Tapered Barrel for Extra Security: The insert barrel of 40mm eyepiece is double tapered to allow smooth insertion, the wide dimension of the taper helps prevent the eyepiece from falling out of the telescope should the set screw holding it in place become loose