Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece Review

Let’s Dive into Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece

The night sky, a canvas of infinite wonder, has always beckoned me. For over a decade, I’ve explored its depths using various tools, but the Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece promises a uniquely immersive experience. With its ultra-wide field of view and Explore Scientific’s reputation for quality, I was eager to put it to the test.

I was looking to upgrade from standard Plossl eyepieces that felt like looking through a straw. The narrow field of view made it difficult to observe extended objects and required constant adjustments. I was seeking an eyepiece that offered a wider, more comfortable viewing experience, particularly for public star parties where sharing the view is crucial.

Upon unboxing, the eyepiece felt substantial and well-built. The weight of 13.7oz gives a sense of quality, and the fit and finish were excellent. The rubber eyecup was comfortable, and the overall design felt robust and ready for the rigors of outdoor use.

Compared to my older 25mm Plossl and a 15mm generic wide-angle eyepiece, the Explore Scientific offering was immediately noticeable. The Plossl had a much narrower field of view, making it feel cramped, and the generic wide-angle lacked the sharpness and clarity I expected. The Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece seemed to offer the best of both worlds: a wide field of view with excellent optical performance.

I was excited but also a little apprehensive. Could it truly deliver the immersive experience I was hoping for? The $319.99 price tag set a high expectation, and I was determined to see if it lived up to the hype.

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Real-World Testing: Putting Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece to the Test

First Use Experience

My first test was at a local astronomy club’s dark sky site, using my 8″ Schmidt-Cassegrain telescope. The conditions were relatively good, with moderate seeing and minimal light pollution. I targeted Jupiter and several deep-sky objects, including the Orion Nebula.

The 82-degree apparent field of view was immediately striking. It felt like stepping through a portal into space. Jupiter and its moons drifted slowly across the field of view, allowing ample time for observation without constant re-centering. The image was sharp and clear, with good contrast.

I was particularly impressed with its performance on the Orion Nebula. The wide field allowed me to view the entire nebula complex, and the eyepiece revealed subtle details that were previously hidden. Even with averted vision, faint wisps of gas became visible.

Extended Use & Reliability

After several months of use, the Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece has proven to be a reliable and durable performer. I’ve used it in a variety of conditions, from cold, damp nights to warm, dry evenings, and it has consistently delivered excellent views.

The argon-purged and waterproof design has been especially reassuring. I no longer worry about dew forming on the internal optics or accidental splashes damaging the eyepiece. Cleaning is also straightforward; a gentle wipe with a microfiber cloth is usually sufficient.

Compared to my previous eyepieces, the Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece is a clear winner. It offers a wider, more comfortable viewing experience, with superior optical performance and enhanced durability. It has elevated my observing sessions to a new level.

Breaking Down the Features of Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece

Specifications

The Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece boasts several key specifications.

• It has a focal length of 18mm. This determines the magnification when used with a specific telescope.
• The apparent field of view is 82 degrees, providing a wide and immersive viewing experience. This allows you to see more of the sky at once.
• It utilizes a 2-inch barrel, which is compatible with many modern telescopes. This allows for greater light gathering compared to smaller barrels.
• The eyepiece has an eye relief of 13mm. This is the distance your eye can be from the lens and still see the full field of view.
• It weighs 13.7oz (390g), which gives it a solid and premium feel.
• Its dimensions are 89mm in length and 56mm in width.
• The field stop diameter measures 25.3mm.
• The argon-purged and waterproof design protects the internal optics. This ensures longevity and consistent performance.

These specifications translate to a comfortable and high-performing eyepiece. The wide field of view enhances the viewing experience, while the eye relief is comfortable for extended observations.

Performance & Functionality

The Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece excels in its primary function: delivering exceptional views of the night sky.

• The optical performance is outstanding, with sharp, clear images across the entire field of view. Stars appear as pinpoint lights, and details in deep-sky objects are readily apparent.
• The wide field of view is particularly beneficial for observing extended objects like nebulae and galaxies. It allows you to take in the entire scene at once.
• The 18mm focal length provides a versatile magnification range, suitable for a variety of targets. It’s a good compromise between high and low power.
• The eyepiece has a comfortable eye relief, even for eyeglass wearers (though I prefer to observe without glasses).

While the eyepiece is generally excellent, there are minor areas for improvement. At the very edge of the field of view, there is a slight amount of distortion.

Overall, the Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece exceeds expectations. It provides a superior viewing experience compared to standard eyepieces.

Design & Ergonomics

The Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece features a well-thought-out design.

• The build quality is excellent, with high-quality materials and precise construction. It feels solid and durable in hand.
• The rubber eyecup is comfortable and helps to block out stray light. This is especially helpful in light-polluted areas.
• The 2-inch barrel fits securely into the telescope’s focuser. The eyepiece is easy to install and remove.
• The overall weight is well-balanced. It doesn’t feel too heavy or cumbersome.

The eyepiece is user-friendly. There is no steep learning curve.

Durability & Maintenance

The Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece is built to last.

• The argon-purged and waterproof design protects the internal optics from moisture and dust. This is crucial for long-term reliability.
• The high-quality materials are resistant to wear and tear. The eyepiece feels robust and can withstand the rigors of outdoor use.
• Maintenance is simple: A gentle wipe with a microfiber cloth is usually sufficient to clean the lens surfaces.

With proper care, this eyepiece should provide years of reliable service.

Accessories and Customization Options

The Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece comes with a few basic accessories.

• It includes protective end caps to protect the lens surfaces when not in use.
• A cleaning cloth is provided for gentle cleaning.

There are limited customization options for this eyepiece. However, it’s compatible with standard 2-inch filters. Using filters can enhance the view of specific objects, such as nebulae and planets.

Pros and Cons of Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece

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Who Should Buy Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece?

The Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece is perfect for:

• Intermediate to advanced amateur astronomers who want to upgrade their observing experience.
• Those who observe faint deep-sky objects as it allows for a more comfortable averted vision technique.
• Anyone who appreciates a wide field of view and exceptional optical performance.
• Public outreach star parties because the larger viewing window allows multiple people to easily see at once.

Who should skip this product? Beginners on a very tight budget might want to start with a more affordable eyepiece.

Must-have accessories or modifications? A set of light pollution filters and a good quality carry case.

Conclusion on Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece

The Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece is a truly exceptional piece of equipment. It delivers a stunningly immersive viewing experience with its wide field of view and excellent optical performance.

The price is certainly a consideration, but the quality and performance justify the investment. If you’re serious about astronomy and want to elevate your observing sessions, this eyepiece is worth every penny.

I wholeheartedly recommend the Explore Scientific 18mm 82 Degree Series Argon-Purged Waterproof Eyepiece. Upgrade your telescope today!