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Explore Scientific 100° Series 5.5mm Waterproof Eyepiece

SKU EPWP10055-01
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Original price $0.00 - Original price $0.00
Original price $0.00
$549.99 - $549.99
Current price $549.99
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Explore Scientific 100 Degree Series 5.5mm Waterproof Eyepiece - EPWP10055-01

Presenting the Explore Scientific 100° Series 5.5mm Waterproof Eyepiece - a pinnacle of comfort, quality, and value in the realm of visual astronomy.

These hyper-wide class oculars redefine your stargazing experience, offering an expansive, inky black sky that virtually dissolves the barrier between you and the universe.

With an apparent field of view nearing the maximum for hyper-wide eyepieces, object location becomes a breeze.

Even in non-driven telescopes, objects remain in view for an extended duration, requiring fewer adjustments.

Furthermore, these hyper-wide eyepieces facilitate a technique known as averted vision.

By gazing slightly off-center rather than directly at an object, you engage a more light-sensitive area of your eye.

This proves invaluable when observing faint celestial objects, enhancing your ability to discern even the most delicate details in the cosmos.

Embrace a new level of astronomical exploration with the Explore Scientific 100° Series 5.5mm Waterproof Eyepiece.



  • 100° Apparent Field of View: Immerse yourself in an expansive 100-degree apparent field of view, offering an unparalleled panoramic experience during your astronomical observations. This wide field provides a vast canvas of the night sky, allowing you to capture intricate celestial details with exceptional clarity and precision.
  • 5.5mm Focal Length: The precisely engineered 5.5mm focal length strikes a harmonious balance between magnification and field of view. This makes it an ideal eyepiece for high-powered observations, enabling you to scrutinize lunar and planetary surfaces, as well as delve into the intricate features of deep-sky objects with impressive resolution.
  • 2" Barrel Size: With a 2" barrel size, this eyepiece is compatible with a wide range of telescopes and mounts. Its larger diameter allows for enhanced light-gathering capabilities, resulting in brighter and more detailed views of celestial objects.
  • Argon-Purged Waterproof Design: Internally sealed and filled with dry argon gas, this eyepiece boasts impeccable waterproof and fogproof performance. This advanced design ensures that it remains impervious to moisture and atmospheric conditions, providing consistent clarity and reliability even in challenging weather conditions.
  • Rigorous Water Testing: To guarantee its reliability, this eyepiece undergoes thorough water testing, including a rigorous submersion in water to a depth of one meter for a duration of 30 minutes. This stringent testing certifies its waterproof integrity under various observing conditions, giving you confidence in its performance.
  • Fully Multi-Coated Optics: Experience exceptionally clear, bright views with maximum light transmission and reduced glare, reflections, and internal scattering, all thanks to advanced anti-reflective coatings. These coatings work together to optimize the quality of your observations, ensuring that you capture the finest details of celestial objects.
  • Edge-Blackened Optics: Elevate image quality with optical elements featuring edge-blackening. This meticulous process minimizes internal reflections and stray light, resulting in superior contrast and sharpness. Whether you're observing bright planets or faint deep-sky objects, you'll enjoy stunningly clear and detailed views.
  • Precision-Machined Metal Construction: Crafted with precision-machined metal components, this eyepiece not only exudes a sense of quality but also ensures long-lasting durability. The robust construction maintains optical alignment, guaranteeing consistent performance over time. This eyepiece is built to withstand years of rigorous use.
  • Threaded Barrels: Enhance your observations by customizing your viewing experience with the inclusion of various astronomy filters. The threaded barrels allow you to easily attach and use different filters, enabling you to adapt to specific celestial targets and viewing conditions. This versatility opens up a whole new level of exploration and discovery.
  • Comfortable Eye Relief: Designed with comfortable eye relief, this eyepiece caters to observers who wear eyeglasses. This feature ensures that you can enjoy extended viewing sessions without discomfort or the need to remove your glasses, providing a seamless and comfortable experience.
  • Wide Compatibility: The Explore Scientific 100° Series 5.5mm Waterproof Eyepiece is versatile and compatible with various telescope types and mounts. It seamlessly integrates into your existing equipment, making it an invaluable addition to any astronomer's toolkit. Whether you have a refractor, reflector, or catadioptric telescope, this eyepiece delivers remarkable views of the cosmos, ensuring that you can explore the universe with ease and precision.
  • Included Accessories: The accessory ensemble accompanying the Explore Scientific 100° Series 5.5mm 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.


                                                                                What's Included:

                                                                                ✓ Explore Scientific 100° Series 5.5mm Waterproof Eyepiece

                                                                                ✓ Eyepiece Caps

                                                                                ✓ Soft Silicone Rubber Eyecups

                                                                                ✓ Eyepiece Pouch/Case

                                                                                ✓ Limited 1 year warranty


                                                                                Item Number  EPWP10055–01
                                                                                Focal Length  5.5mm
                                                                                Length  150mm
                                                                                Width  56mm
                                                                                Weight  21.6oz; 612g
                                                                                Barrel Size  2.00"
                                                                                Eye Relief  10.5mm
                                                                                Field Stop Diameter  9.6mm

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