Explore Scientific AR 24mm 82° 2″ eyepiece
The Explore Scientific AR 24mm 82° is a premium optical element from the 82° N2 series, designed for demanding visual observation. The 2″ barrel diameter ensures compatibility with standard astronomical telescopes, while argon purging protects the internal optics from dew and moisture condensation. The eye relief is 17mm, allowing comfortable viewing even with glasses.
Ultra-wide field of view and image quality
The 82° N2 series eyepieces are designed with an emphasis on high contrast, high resolution and homogeneous image quality across the entire field of view. The optical system is corrected to deliver a flat image free of curvature or distortion at the edges of the field - even when used with fast, low f-ratio objectives. The ultra-wide 82° field of view creates a striking sense of immersion in space: the observer takes in the entire scene at once through the effect of peripheral vision, which reduces eye fatigue during extended viewing sessions.
Maximum contrast through advanced coatings
Maximum contrast is achieved through FMC (fully multi-coated) anti-reflective coatings on all optical elements. All internal surfaces of the barrel are finished with a matte black treatment to eliminate stray reflections. The lens edges are also blackened, removing light scatter within the optical system. The result is a sharp, high-contrast image from the center to the very edge of the field of view.
Practical features and usability
- Adjustable rubber eyecup for comfortable eye placement
- Standard 2″ filter thread on the barrel end - accepts planetary, UHC or OIII filters without adapters
- Parfocal design across the entire 82° N2 series - switching between focal lengths in the same series requires minimal refocusing
- Argon purging protects internal optics from fogging in demanding environmental conditions
Technical specifications
| Parameter |
Value |
| Focal length |
24mm |
| Apparent field of view |
82° |
| Barrel diameter |
2″ |
| Eye relief |
17mm |
| Filter thread |
2″ standard |
| Internal gas fill |
Argon (argon purged) |
| Coatings |
FMC - fully multi-coated |
| Series |
Explore Scientific 82° N2 |
Who is this eyepiece for?
The Explore Scientific AR 24mm 82° eyepiece is an ideal choice for astronomers looking for a premium wide-field eyepiece for observing extended deep-sky objects - nebulae, star clusters and galaxies - as well as for planetary and lunar observation with a generous field of view. The combination of an ultra-wide field, comfortable eye relief and argon-protected optics makes it a reliable companion for observation under demanding conditions.
Suitable observation targets
- Nebulae and emission nebulae
- Open and globular star clusters
- Galaxies
- The Moon and planets
- Wide-field star fields and Milky Way regions
Argon-purged optics and parfocal compatibility with the entire 82° N2 series make this eyepiece a long-term investment for serious amateur astronomers.
