Explore Scientific 52 Series Argon Purged Eyepiece (6.5mm)

Explore Scientific ★ 3.6/5 · ItemOracle Score Mid-Range

$120 USD
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Explore Scientific 52 Series Argon Purged Waterproof Eyepiece (6.5mm)

Argon-purged, waterproof eyepiece with 6.5mm focal length for clear, high-contrast views. Coated lenses and removable soft eyecup enhance comfort and image quality. Users note crisp images and good value for money

Highlights

  • argon gas purge for moisture resistance
  • waterproof O-ring sealed design
  • EMD coatings on all lens surfaces

Pros

  • coated lens surfaces
  • argon purged waterproof housing
  • removable flip-down eyecup
  • standard 1.25 inch filter thread
  • slide-on top and bottom lens caps

Cons

  • no explicit durability rating
  • no compatibility details beyond standard thread
  • limited customer insight data

Best For

  • astronomy viewing with standard 1.25 inch filters
  • astronomical object observation in damp environments
  • detailed planetary eyepiece use
  • wide-eye relief casual glassing
  • backup eyepiece for travel observation
  • crisp-image hobbyist sessions

Features

  • Coatings: EMD on all lens-to-air surfaces for clarity
  • Filter thread fits standard 1.25 inch diameter filters (1.125 in x 42 TPI)
  • Waterproof O-ring seal with argon gas purge; tested under 1 meter water for 30 minutes
  • Eyecup is removable, flip-down, made of soft silicone rubber
  • Lens caps slide-on top and bottom for protection

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