Explore Scientific 6.5mm 52° Argon-Purged Waterproof Eyepiece
A high-quality eyepiece is one of the best investments you can make in your telescope setup, and the Explore Scientific 6.5mm 52° Series eyepiece delivers outstanding performance for planetary and deep-sky observations alike. Designed for astronomers who demand crisp, high-contrast views with excellent edge correction, this 6.5mm eyepiece is an excellent choice for high-power planetary viewing and resolving fine details in deep-sky objects.
Optical Performance
The Explore Scientific 6.5mm 52° eyepiece features a carefully engineered optical design that delivers pinpoint stars across the entire field. With a 52-degree apparent field of view, this eyepiece provides a comfortable balance between immersive views and sharp field definition, making it an excellent choice for both lunar and planetary observing as well as globular clusters, planetary nebulae, and smaller galaxies.
Multi-element optics with premium coatings ensure maximum light transmission and contrast, reducing reflections and ghosting. The fully multi-coated lenses help produce bright, high-contrast images with minimal chromatic aberration, an essential feature when resolving subtle planetary details or hunting down faint deep-sky targets.
Argon Purging and Waterproof Construction
Unlike many standard eyepieces, the Explore Scientific 6.5mm 52° Series is completely waterproof and argon-purged. This feature prevents internal fogging, protects the internal optics from dust and moisture, and ensures long-term durability even in humid or dewy observing conditions. Argon gas is superior to nitrogen for purging because it has a larger atomic size, making it less likely to escape over time and maintaining a stable internal environment for the lenses.
Comfortable Eye Relief and Viewing Experience
With 15mm of eye relief, this eyepiece provides a comfortable viewing experience, even for observers who wear glasses. The soft rubber roll-down eyecup allows for easy adjustment, letting you fold it down when using glasses or keep it up for improved stray light blocking. This flexible design ensures a comfortable, customized viewing experience whether you observe with or without eyewear. The long eye relief also reduces eye strain during extended observing sessions, making this a great choice for serious amateur astronomers who spend long nights under the stars.
Durable Build for Long-Term Use
The Explore Scientific 6.5mm 52° eyepiece is built to last, featuring a rugged, anodized aluminum housing that stands up to years of use in the field. The smooth 1.25” barrel is precisely machined for a secure fit in any standard telescope focuser or diagonal, ensuring a stable, wobble-free connection. The barrel is also threaded to accept standard 1.25” filters, allowing you to enhance contrast with planetary filters or improve visibility of nebulae with UHC and OIII filters.
Ideal for High-Power Observing
With its 6.5mm focal length, this eyepiece is perfect for high-power observing with a wide range of telescopes. It excels when used with refractors, Schmidt-Cassegrains, and Dobsonian telescopes for planetary details such as the bands of Jupiter, Saturn’s Cassini Division, lunar craters, and the delicate structure of planetary nebulae. When atmospheric conditions allow, this eyepiece can push your telescope’s resolving power to its limits, revealing intricate details that lower magnifications might miss.
Why Choose the Explore Scientific 6.5mm 52° Eyepiece?
- High-quality multi-element optics for sharp, high-contrast views
- Fully multi-coated lenses for maximum light transmission
- Argon-purged and waterproof for long-term durability and moisture resistance
- Comfortable 15mm eye relief, great for glasses wearers
- Soft rubber roll-down eyecup for adjustable viewing comfort
- 52-degree apparent field of view for immersive but well-defined views
- Rugged construction with a smooth 1.25” barrel, compatible with all standard telescope focusers
- Perfect for high-power planetary, lunar, and deep-sky observing
The Explore Scientific 6.5mm 52° Series is an outstanding eyepiece that combines premium optical performance with durable construction and innovative design. Whether you're tracking planetary details, resolving tight double stars, or examining deep-sky objects with high precision, this eyepiece will quickly become a favorite in your collection.
Upgrade your observing experience today with the Explore Scientific 6.5mm 52° Argon-Purged Eyepiece and discover a new level of clarity and detail in your telescope’s performance.
