Explore Scientific 52 Series Argon Purged Eyepiece 25mm

Explore Scientific ★ 4.50 (51 reviews) Mid-Range

Price tier: Mid-Range
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Explore Scientific 52 Series Argon Purged Waterproof Eyepiece (25mm)

Argon-purged waterproof eyepiece with EMD coatings. Filter thread fits standard 1.25 in diameter; removable flip-down eyecup. Tested waterproof seal and gas purge for system protection

Highlights

  • argon purge for gas protection
  • waterproof sealing
  • full-lens coatings (EMD)

Pros

  • EMD coatings on all lens-air surfaces
  • Waterproof O-ring seal with argon purge
  • Standard 1.25 in filter thread compatibility
  • Removable flip-down eyecup
  • Slide-on top and bottom lens caps

Cons

  • Limited customer insight data
  • No explicit performance specs beyond coating and purge
  • Single focal length option listed (25mm)

Best For

  • spectroscopy study setups
  • astronomy eyepiece for telescopes
  • field observation with moisture protection
  • filter-compatible viewing
  • dry-argon purged optics protection
  • compact eyepiece for travel kits

Features

  • Coatings EMD (Enhanced Multi-Layer Deposition) on all lens-to-air surfaces
  • Filter Thread Fits Standard 1. 25 inch Diameter Thread in Filters (1. 125 inches x 42 TPI)
  • Waterproof O-Ring Sealed Argon Gas Purged; Tested Under 1 Meter of Water for 30 Minutes
  • Eyecup Removable Flip-Down Style Soft Silicone Rubber
  • Lens Caps Slide-on Top and Bottom.

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