Explore Scientific 92° 12mm Long Eye Relief Waterproof Eyepiece - 2"

A 92° Hyper-Wide Apparent Field of View

With an apparent field of view of 92°, this eyepiece delivers an immersive, 'spacewalk' experience that makes you feel like you're floating in the cosmos. This expansive view not only makes finding celestial objects easier but also keeps them in the field of view longer in non-driven telescopes like Dobsonians, reducing the need for constant nudging.

The wide canvas is particularly effective for framing moderately sized objects like the Hercules Cluster (M13) or the Lagoon Nebula (M8) in their entirety. It also aids in the use of averted vision, allowing you to place faint targets on the more sensitive periphery of your retina to tease out subtle details.

Long Eye Relief in a 12mm Design

High-power, wide-field eyepieces often come with the trade-off of short, uncomfortable eye relief. Explore Scientific has engineered the 92° 12mm eyepiece with long eye relief, ensuring you can see the entire 92° field comfortably without pressing your eye against the lens. This is a critical feature for eyeglass wearers, who can observe with their glasses on and still take in the full, expansive view.

A 2-Inch Waterproof Eyepiece: Argon-Purged for Longevity

Designed for real-world observing conditions, the 92° 12mm eyepiece is fully waterproof. The optical housing is sealed and purged with inert argon gas, which prevents the formation of internal fogging during sudden temperature drops. This process also protects the internal lens coatings from moisture and fungus, ensuring the eyepiece delivers high-contrast views for years.

Explore Scientific 92° vs. 82° Series: The Extra 10 Degrees

While the 82° field of view has long been a standard for "ultra-wide" eyepieces, the 92° series pushes that boundary for a more profound sense of immersion. The key difference lies in the observational experience.

• 82° Field of View: An 82° eyepiece provides a generous window into space, a significant step up from standard Plössls. It's a workhorse field of view that balances width with optical correction and cost.
• 92° Field of View: The 92° field is so large that it can fill your eye's peripheral vision, creating the sensation of having no eyepiece at all. This "spacewalk" effect is what defines the 92° series, offering a more engaging and captivating view, especially on large, diffuse objects.