Skip to content

Explore Scientific 82° Series 4.7mm Waterproof Eyepiece

SKU EPWP8247-01
Sold out
Original price $229.99 - Original price $229.99
Original price
$229.99 - $229.99
Current price $229.99
Out of stock

Ships To: United States & Canada 🇺🇸 🇨🇦

✓ Free U.S. Shipping (on most orders over $150 USD)

✓ Price Match Available

✓ Authorized Dealer

✓ Bulk Order Discounts Available

✓ Questions? Call Us 1-800-860-3429

Ships In: 1-3 Business Days

Estimated Delivery Time: 3-7 Business Days

Shipping & Returns

We offer Free Shipping across the United States (Lower 48 States) on most orders over $100 USD.

Shipping fees will apply on most orders shipping across Canada, with some exceptions.

We also offer a 30 Day Return Policy on most of the products that we carry. Some limitations may apply.

For full details on our Shipping & Returns Policy, please click here.


The vast majority of products that we sell, with a few exceptions, are covered under Warranty.

To view the Warranty details for each brand that we sell, including products that do not qualify for Warranty, please visit here.

Explore Scientific 82 Degree Series 4.7mm Waterproof Eyepiece - EPWP8247-01

Discover the Explore Scientific 82° Series 4.7mm Waterproof Eyepiece.

The Explore Scientific 82° Series 4.7mm Argon-Purged Waterproof Eyepiece is your choice for those moments when you seek very high magnifications.

Check out the video on this page, starting at 5:28, where we delve into the benefits and conditions required for high-magnification observations of planets, double stars, and intricate details within deep sky objects.

While the 4.7mm eyepiece won't be in constant use, it becomes indispensable when the night sky conditions align nearly perfectly.

During these rare moments, you can enjoy breathtaking views of planetary intricacies that will remain etched in your memory.

Explore Scientific 82° Series 4.7mm Waterproof Eyepiece - Comfort, Quality, Value.

Our Explore Scientific 82° Series 4.7mm Waterproof eyepiece, renowned for their 82-degree apparent field of view, provide an immersive ultra-wide field that encourages relaxation at the eyepiece.

By easing eye strain and promoting extended viewing sessions, these eyepieces unveil subtle details that might initially escape notice.

They also facilitate the use of averted vision, a technique that enhances the visibility of faint objects by directing light to the eye's more light-sensitive regions.

Explore Scientific 82° Series Waterproof Eyepiece

Effortless Maintenance and Protection of Internal Lens Elements with Waterproof Design.

The Explore Scientific  82° Series 4.7mm Waterproof Eyepiece feature gas-purging and O-ring sealing, ensuring ease of cleaning.

You can confidently rinse them under running water and apply ample lens cleaning solutions to remove stubborn deposits, whether from nature or human handling.

Additionally, this eyepiece remain unfazed by overnight exposure, remaining fog-free between lens elements.



  • 82° Apparent Field of View: The eyepiece provides an expansive 82-degree apparent field of view, delivering an immersive visual experience. This wide field of view allows observers to take in large portions of the night sky in a single frame, making it particularly beneficial for observing celestial objects and capturing panoramic views.
  • 4.7mm Focal Length: With a focal length of 4.7mm, this eyepiece is designed for very high magnification observations. It excels in scrutinizing objects like planets, double stars, and fine details within deep sky objects. In near-perfect sky conditions, this eyepiece reveals planetary details that leave a lasting impression on observers.
  • Advanced Optical Design: The eyepiece incorporates advanced computer-designed optics, featuring a combination of low dispersion and high refractive index optical glasses. This design minimizes chromatic aberration and enhances color fidelity, ensuring exceptional image quality.
  • Multilayer Deposition Coatings: Robust multilayer deposition coatings are applied to the lens surfaces. These coatings optimize light transmission, reduce internal reflections, and enhance contrast, resulting in clear and crisp views of celestial objects.
  • Argon-Purged Waterproof Design: The eyepiece is argon-purged, creating a sealed environment that protects the internal elements from environmental factors. This ensures the eyepiece remains free from fogging, even in damp conditions. Argon gas provides superior sealing properties compared to Nitrogen, minimizing the risk of leakage over time.
  • High Contrast and Resolution: The eyepiece is optimized to deliver high contrast and resolution, allowing for detailed observations of celestial objects. This feature is crucial for discerning fine details on the lunar surface, planets, and deep-sky objects.
  • Superior Flat Field Characteristics: The eyepiece maintains excellent flat field characteristics, ensuring that stars remain sharp and pinpoint across the entire field of view. This feature is particularly valuable for astrophotography and detailed visual observations.
  • Long Eye Relief: The eyepiece offers generous eye relief, providing comfort for extended viewing sessions. This feature is especially appreciated by observers who wear eyeglasses, as it allows for comfortable viewing without the need for excessive eye strain.
  • Parfocal Design: The eyepiece maintains focus at near the same point regardless of the focal length selected. This parfocal design streamlines the observing process, allowing for smooth transitions between different eyepieces without the need for frequent refocusing.
  • Removable and Foldable Soft Silicone Rubber Eyecup: The eyepiece includes a removable and foldable soft silicone rubber eyecup, enhancing comfort during extended observing sessions. This feature provides a cushioned interface between the observer's eye and the eyepiece, reducing fatigue.
  • Included Accessories: The accessory set accompanying the Explore Scientific 82° Series 4.7mm Waterproof Eyepiece includes protective eyepiece caps, comfortable soft silicone rubber eyecups, a secure eyepiece pouch/case for storage, and is complemented by a limited 1-year warranty, ensuring heightened peace of mind for users.


                                                                  Explore Scientific Eyepiece Guide Video:


                                                                  What's Included:

                                                                  ✓ Explore Scientific 82° Series 4.7mm Waterproof Eyepiece

                                                                  ✓ Eyepiece Caps

                                                                  ✓ Soft Silicone Rubber Eyecups

                                                                  ✓ Eyepiece Pouch/Case

                                                                  ✓ Limited 1 year warranty



                                                                  Item Number  EPWP8247–01
                                                                  Focal Length  4.7mm
                                                                  Length  87mm
                                                                  Width  43mm
                                                                  Weight  7.5oz; 213g
                                                                  Barrel Size  1.25"
                                                                  Eye Relief  13.6mm
                                                                  Field Stop Diameter  6.9mm

                                                                  Customer Reviews

                                                                  Be the first to write a review