Explore Scientific Eyepiece 82° Ar 6.7mm 1,25" (52081)

Explore Scientific's 82° Series extreme wide field eyepieces are the result of advanced computer design, combining low dispersion and high refractive index optical glasses with durable multilayer deposition coatings. These eyepieces are optimized to deliver high contrast, high resolution, and superior flat field characteristics.

The visual experience offered by these eyepieces is truly immersive, thanks to their long eye-relief and 82° apparent field. This design allows for a relaxed viewing position, making it easier to employ the "averted vision" technique for studying faint details across an expansive field-of-view.

Each eyepiece is carefully assembled in precision-machined metal lens barrels, ensuring perfect alignment of the optical train for years of rugged field use. The 82° Series eyepieces feature a fold-up rubber eye-guard that can be adjusted to the observer's preferred height, enhancing comfort during extended viewing sessions.

To minimize internal reflections, all internal surfaces of the eyepiece barrel are flat black, including the edges of the lenses themselves. This design choice reduces light scattering within the lenses, improving overall image quality.

Protection from the Outdoors:
The eyepiece body is argon-purged and waterproof, ensuring that internal elements remain pristine. This sealed, dry environment prevents internal fogging and protects against contaminants such as fungus growth between lens elements. The waterproof design also simplifies cleaning, eliminating the risk of cleaning solution seeping between elements.

Specifications

Capacity

• Focal length (mm): 6.7

• Apparent field of view (°): 82

• Eye relief (mm): 15.7

• Coating of optical system: EMD multi-coating

• Number of lenses: 7

• Number of groups: 4

• Connection (to the telescope): 1.25"

Special Features

• Adjustable eyepiece cup: Yes (folding)

• Homofocal: Yes

• Illuminated: No

• Filter thread: Yes

• Inert gas charge: Yes

General Information

• Length (mm): 88.5

• Diameter (mm): 42

• Weight (g): 290

• Series: 82°

• Type: Eyepiece

• Type of build: UWA