Let’s Dive into Explore Scientific 16mm 68 Degree Series Argon-Purged Waterproof Eyepiece
The Explore Scientific 16mm 68 Degree Series Argon-Purged Waterproof Eyepiece is designed for amateur astronomers seeking a wide field of view combined with sharp, high-contrast images. This eyepiece, manufactured by Explore Scientific, promises superior flat-field characteristics and waterproof construction for reliable performance in varying conditions. Its argon-purged design ensures internal fogging is a non-issue, making it appealing to observers in humid environments or during temperature swings.
My interest in this particular eyepiece stemmed from my frustration with narrow fields of view while observing deep-sky objects. I often felt like I was looking through a straw, missing the context of the surrounding stars. A wider field, combined with reliable performance in all weather conditions, was my primary objective.
The eyepiece arrived well-packaged, and my initial impression was one of solid build quality. The weight feels substantial but not overly heavy, and the rubber eyecup feels comfortable and well-designed. Its compact size for a 68-degree eyepiece surprised me, and the coatings on the lens are clearly high-quality.
I was also considering the Tele Vue Panoptic 19mm and the Baader Hyperion 17mm, both highly regarded in the astronomy community. However, the Explore Scientific eyepiece stood out due to its combination of a slightly wider apparent field of view than the Baader, and the Argon-purged waterproofing, something the Tele Vue lacked. The price point also played a factor, as the Explore Scientific was significantly more affordable.
My first impression was excitement tempered by cautious optimism. The specifications looked promising, but the proof would be in the actual observation. I was eager to see if it could deliver the wide, sharp views I was hoping for.
Real-World Testing: Putting Explore Scientific 16mm 68 Degree Series Argon-Purged Waterproof Eyepiece to the Test
First Use Experience
My first opportunity to test the Explore Scientific 16mm 68 Degree Series Argon-Purged Waterproof Eyepiece was at a dark sky location about an hour outside of the city. The conditions were cool and slightly humid, with the temperature dropping noticeably after sunset. I used it with my 8-inch Schmidt-Cassegrain telescope.
The eyepiece provided a noticeable improvement in field of view compared to my older 20mm Plössl eyepiece. The difference was immediately apparent when observing the Pleiades star cluster, as I could finally fit the entire cluster within the field of view, along with the surrounding nebulosity. Focusing was easy and precise. No problems were noticed during first use.
Extended Use & Reliability
After several months of using the Explore Scientific 16mm 68 Degree Series Argon-Purged Waterproof Eyepiece across different seasons, I can confidently say it has held up remarkably well. It has become one of my go-to eyepieces for a variety of observing sessions. No major weather events were experienced, but the item proved itself sturdy.
The eyepiece shows minimal signs of wear and tear despite being transported frequently. The argon-purged waterproofing has proven effective, as I haven’t experienced any internal fogging, even during nights with significant temperature fluctuations and high humidity. Cleaning the lens is straightforward, requiring only a gentle wipe with a microfiber cloth.
Compared to my previous experiences with lower-quality eyepieces, the Explore Scientific offers a significant upgrade in terms of image sharpness, field of view, and overall build quality. It consistently delivers bright, clear images with minimal distortion across the field. This eyepiece has definitely exceeded my expectations, and is a noticeable improvement over my past equipment.
Breaking Down the Features of Explore Scientific 16mm 68 Degree Series Argon-Purged Waterproof Eyepiece
Specifications
The Explore Scientific 16mm 68 Degree Series Argon-Purged Waterproof Eyepiece boasts several notable specifications. It has a focal length of 16mm, which translates to a moderate magnification in most telescopes. The 68-degree apparent field of view provides a wide and immersive observing experience.
The eyepiece features a 1.25-inch barrel size, making it compatible with most standard telescopes. It has an eye relief of 11.9mm, which is adequate for most users, although some eyeglass wearers might find it slightly short. The unit weighs 5.5oz (158g), making it relatively lightweight and easy to handle.
These specifications matter because they directly impact the observing experience. The focal length determines the magnification, while the field of view dictates how much of the sky is visible at once. The argon purging and waterproofing ensure reliable performance in various environmental conditions. The field stop diameter is 18.2mm.
Performance & Functionality
The Explore Scientific 16mm 68 Degree Series Argon-Purged Waterproof Eyepiece excels in providing sharp, high-contrast images across a wide field of view. Stars appear as pinpoint sources of light, and faint details in deep-sky objects are rendered with clarity. The eyepiece delivers above average results for most users.
Its strengths lie in its wide field, sharp images, and waterproof construction. The only notable weakness is the eye relief, which might be slightly short for some eyeglass wearers. Overall, the eyepiece meets and even exceeds expectations for its price range.
Design & Ergonomics
The eyepiece boasts a robust and well-engineered design. The materials used feel premium, and the weight is balanced. The fold-down rubber eyecup is comfortable and effectively blocks stray light, enhancing contrast.
The eyepiece is user-friendly and requires no special setup or adjustments. Its simple design makes it easy to insert into the telescope and focus on the desired object. Even amateur astronomers will find it simple to use.
Durability & Maintenance
The Explore Scientific 16mm 68 Degree Series Argon-Purged Waterproof Eyepiece is built to last. Its sturdy construction and argon-purged waterproofing make it resistant to damage from moisture and temperature fluctuations. With proper care, this eyepiece should provide years of reliable service.
Maintaining the eyepiece is simple. A gentle wipe with a microfiber cloth is usually sufficient to remove dust and fingerprints from the lens. No special tools or cleaning solutions are required.
Accessories and Customization Options
The Explore Scientific 16mm 68 Degree Series Argon-Purged Waterproof Eyepiece does not come with any specific accessories beyond the standard dust caps. However, its 1.25-inch barrel size makes it compatible with a wide range of standard telescope accessories, such as filters and Barlow lenses. It has proven compatible with most readily available accessories.
While there are no direct customization options for the eyepiece itself, users can enhance its performance by using it with different filters to improve contrast or reduce light pollution. The eyepiece works perfectly well with filters from brands like Orion and Explore Scientific.
Pros and Cons of Explore Scientific 16mm 68 Degree Series Argon-Purged Waterproof Eyepiece
Pros
- Wide 68-degree apparent field of view provides an immersive observing experience.
- Argon-purged and waterproof construction ensures reliable performance in all weather conditions.
- Sharp, high-contrast images reveal fine details in deep-sky objects.
- Solid build quality and durable materials ensure long-lasting performance.
- Affordable price point makes it an excellent value for the money.
Cons
- Eye relief might be slightly short for some eyeglass wearers.
- The field of view may show some distortion at the very edges, especially with faster telescopes.
Who Should Buy Explore Scientific 16mm 68 Degree Series Argon-Purged Waterproof Eyepiece?
This eyepiece is perfect for amateur astronomers who are looking to upgrade from basic eyepieces and want a wider field of view without breaking the bank. It is also ideal for those who observe in humid environments or experience significant temperature fluctuations, thanks to its argon-purged and waterproof design. Those observing deep-sky objects will benefit most from the large field of view.
Those who require very long eye relief or demand perfect edge-to-edge sharpness might want to consider higher-end (and more expensive) eyepieces. It may be best to skip this product for experts who demand the very highest performance available.
A light pollution filter is a must-have accessory for observers in urban areas. A good quality Barlow lens can also be used to increase the magnification for planetary observing.
Conclusion on Explore Scientific 16mm 68 Degree Series Argon-Purged Waterproof Eyepiece
The Explore Scientific 16mm 68 Degree Series Argon-Purged Waterproof Eyepiece is an excellent choice for amateur astronomers seeking a high-quality, versatile, and affordable eyepiece. It strikes a great balance between performance, durability, and price. It is a good value for the money.
The price is definitely justified considering its wide field of view, sharp images, and waterproof construction. It offers a significant upgrade over basic eyepieces without requiring a huge investment. It may not have the highest possible performance, but what it lacks in this it more than makes up for in affordability and ease of use.
I would wholeheartedly recommend this eyepiece to anyone looking to enhance their observing experience. It’s a well-rounded performer that delivers excellent results in a variety of observing situations. Upgrade your view of the cosmos with the Explore Scientific 16mm 68 Degree Series Argon-Purged Waterproof Eyepiece – you won’t be disappointed!