The Explore Scientific 11mm 82° Series Waterproof Eyepiece is a premium high-power ocular designed for observers who want maximum magnification without sacrificing field of view. Its 82° apparent field immerses you in the night sky, offering dramatic wide-angle views of globular clusters, planetary nebulae, comets, and solar detail (when paired with proper filters).
Crafted from low-dispersion, high refractive index glass, the 11mm eyepiece features enhanced multi-layer deposition (EMD) coatings and edge-blackened optics, delivering excellent contrast, brightness, and sharpness. It naturally supports averted vision techniques, helping observers spot faint details at the edge of human perception.
The argon-purged, waterproof housing ensures internal elements stay clear of fog, moisture, or dust—making it ideal for rugged field use. Precision-machined barrels and flat-black baffling keep light scatter to a minimum while maintaining optical alignment. Pair it with Explore Scientific Focal Extenders to expand magnification options while retaining the comfort and clarity this eyepiece is known for.
CA Residents: Prop 65 WARNING(S)
🌟 Features & Benefits
- 11mm focal length offers versatile high magnification for planetary and deep sky targets
- 82° apparent field of view for immersive celestial exploration
- Low-dispersion, high-index optical glass with EMD coatings for crisp, high-contrast images
- Edge-blackened lenses and flat-black internals reduce internal reflections and stray light
- Argon-purged, waterproof construction prevents fogging and contamination
- Compatible with 2X, 3X, and 5X Explore Scientific Focal Extenders
- Precision-machined metal barrel ensures long-term optical alignment
🎯 Who It’s For
- Deep sky observers and planetary enthusiasts
- Telescopes users seeking ultra-wide field, high-magnification performance
- Eyeglass wearers looking for clean, sharp images without sacrificing comfort
🔭 What You’ll Be Able to See
- High-resolution planetary detail and lunar surface contrast
- Globular star clusters, cometary structures, and bright planetary nebulae
- Solar features (with appropriate solar filtration)
🎒 What’s Included
- Explore Scientific 11mm 82° Waterproof Eyepiece
- Protective dust caps
- Soft storage pouch
Specifications
| Item Number | EPWP8211–01 |
| Focal Length | 11mm |
| Apparent Field | 82° |
| Eye Relief | 15.6mm |
| Barrel Size | 1.25" |
| Length | 87mm |
| Width | 48mm |
| Weight | 9.8 oz / 279g |
| Waterproofing | Argon Purged / O-Ring Sealed |
| Eyecup | Removable Flip-Down Silicone Rubber |
Warranty Information:
This product includes a Limited One-Year USA Warranty, which converts to the Explore STAR Transferable Extended Life of the Product Warranty when registered within 60 days of purchase.
To activate your warranty, register your product at:
www.explorescientific.com/pages/product-registration