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Explore Scientific 82° Series 30mm Waterproof Eyepiece

SKU EPWP8230-01
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Original price $0.00 - Original price $0.00
Original price $0.00
$499.99 - $499.99
Current price $499.99
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Explore Scientific 82 Degree Series 30mm Waterproof Eyepiece - EPWP8230-01

Introducing the Explore Scientific 82° Series 30mm Waterproof Eyepiece.

"I recently acquired my inaugural E.S. telescope, following my satisfaction with a couple of exceptional E.S. eyepieces. The 6.7mm and 30mm 82° eyepieces are my top choices for wide-field and high-power observations. They complement my new E.D.127mm refractor beautifully." - Greg McKay

The ES 82° Series 30mm Waterproof Argon-Purged Eyepiece represents a favored focal length in the upper-medium power magnification range, offering both an exceptionally broad apparent field and generous eye relief.

It excels in applications that demand increased power, such as scrutinizing globular star clusters, planetary nebulae, the vivid cloud formations enveloping comet nuclei, initial planetary assessments, and, when equipped with the appropriate safe filtration for your telescope, inspecting active regions on the sun.

When used with Explore Scientific Focal Extenders, it can achieve 2X, 3X, or 5X magnification enhancements while preserving the eyepiece's native apparent field and eye relief.

Employing advanced computer-aided design, a fusion of low dispersion and high refractive index optical glasses, and robust enhanced multilayer deposition (EMD) coatings.

The Explore Scientific 82° Series 30mm super wide field eyepiece are meticulously engineered to deliver remarkable contrast, resolution, and an exceptional flat field.

The immersive experience of this eyepiece, featuring extended eye relief and an 82° apparent field, allows for complete engagement.

Your eye remains relaxed, facilitating the use of the "averted vision" technique to explore faint details across an extensive field of view.

Each eyepiece undergoes precise assembly within precision-machined metal lens barrels, maintaining the optical train's perfect alignment for years of robust field use.

To minimize internal reflections, all internal surfaces of the eyepiece barrel, as well as the lens edges, are finished in matte black, reducing light scattering within the lenses.

Explore Scientific 82° Series Waterproof Eyepiece

Explore Ultra-Wide Eyepiece - Comfort, Quality, Value: Explore Scientific 82° Series eyepiece, characterized by their 82° apparent field of view, immerse observers in an exceptionally comfortable ultra-wide field, fostering natural relaxation at the eyepiece.

As you ease your gaze and absorb the celestial panorama before you, extended observation becomes effortless, revealing details that may have eluded you initially.

Another notable advantage of ultra-wide eyepiece is their facilitation of averted vision, allowing you to observe slightly to the side of an object, enhancing the visibility of faint celestial bodies by directing the image to a more light-sensitive part of your eye.

Combine this eyepiece with the Explore Scientific 2X Focal Extender (2.0-inch O.D.) to double its magnification (resulting in an effective 15mm focal length) while preserving the same eye relief and apparent field.



  • 82° Apparent Field of View: The Explore Scientific 82° Series 30mm Waterproof Eyepiece provides an expansive 82-degree apparent field of view. This wide field immerses observers in a vast celestial landscape, enhancing the visual experience and enabling the capture of panoramic views of the night sky.
  • 30mm Focal Length: With a 30mm focal length, this eyepiece offers versatility for various astronomical observations. Striking a balance between magnification and field of view, it is well-suited for studying an array of celestial objects, from the Moon and planets to deep-sky wonders. This focal length allows for detailed examination while preserving a generous field of view.
  • Advanced Optical Design: Employing advanced computer-aided design, the eyepiece integrates a combination of low dispersion and high refractive index optical elements. This sophisticated design minimizes chromatic aberration and ensures exceptional image quality with enhanced color accuracy. The result is sharp, clear views of celestial objects with true-to-life color representation.
  • Durable Multilayer Deposition Coatings: The lens surfaces of this eyepiece feature robust multilayer deposition coatings (EMD coatings). These coatings optimize light transmission, reduce internal reflections, and maximize contrast, resulting in sharp, high-contrast views of celestial objects. This feature is particularly valuable for observing faint details in deep-sky objects.
  • Argon-Purged Waterproof Design: Engineered with an Argon-purged construction, this eyepiece is waterproof and sealed against environmental factors. It remains impervious to internal fogging, even in damp conditions. Argon gas offers superior sealing properties compared to Nitrogen, minimizing the risk of leakage over time. This ensures the longevity and reliability of the eyepiece in various observing conditions.
  • High Contrast and Resolution: The Explore Scientific 82° Series 30mm Eyepiece is meticulously optimized to deliver high contrast and resolution. This optical quality is essential for detailed observations of celestial objects, including lunar features, planets, and deep-sky phenomena. The eyepiece excels in providing clear and well-defined views of celestial details.
  • 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. It minimizes distortion and aberrations, allowing for accurate representation of celestial objects.
  • Long Eye Relief: Offering generous eye relief, this eyepiece provides comfort during extended observing sessions. This extended eye relief is especially appreciated by observers who wear eyeglasses, as it allows for comfortable viewing without excessive eye strain. It enables users to enjoy extended periods of observation without discomfort.
  • Parfocal Design: The eyepiece maintains near-identical focus across various focal lengths, ensuring smooth transitions when switching between different eyepieces. This parfocal design streamlines the observing process without the need for frequent refocusing. It allows for efficient and seamless changes in magnification during observations.
  • Removable and Foldable Soft Silicone Rubber Eyecup: The eyepiece includes a removable and foldable soft silicone rubber eyecup. This feature enhances observer comfort during prolonged viewing sessions, providing a cushioned interface between the observer's eye and the eyepiece. It allows for a customized viewing experience based on individual preferences.
  • Rigorous Water Testing: Each eyepiece undergoes extensive water testing, being submerged in one meter of water for 30 minutes. This testing ensures a perfect seal and boosts confidence in the eyepiece's waterproofing capabilities. It guarantees the eyepiece's resilience against environmental elements, making it suitable for use in a variety of observing conditions.
  • Included Accessories: The accessory ensemble accompanying the Explore Scientific 82° Series 30mm 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, providing users with enhanced peace of mind.


                                                                      Explore Scientific Eyepiece Guide Video:


                                                                      What's Included:

                                                                      ✓ Explore Scientific 82° Series 30mm Waterproof Eyepiece

                                                                      ✓ Eyepiece Caps

                                                                      ✓ Soft Silicone Rubber Eyecups

                                                                      ✓ Eyepiece Pouch/Case

                                                                      ✓ Limited 1 year warranty



                                                                      Item Number  EPWP8230–01
                                                                      Focal Length  30mm
                                                                      Length  131mm
                                                                      Width  82mm
                                                                      Weight  35.5oz; 1kg
                                                                      Barrel Size  2.00”
                                                                      Eye Relief  22mm
                                                                      Field Stop Diameter  43mm

                                                                      Customer Reviews

                                                                      Based on 1 review
                                                                      Nathan L.
                                                                      Great eyepiece!

                                                                      I got this for my 8" dob, it has been great looking at M42 and star clusters.