Explore Scientific


Explore Scientific 4.7mm 82° 1.25-inch O.D. Argon-Purged Waterproof Eyepiece

The Explore Scientific 1.25" diameter barrel 82° Series 4.7mm Eyepiece is engineered to deliver a wide field of view with a long eye relief, making it ideal for planetary and deep-space observations.

Its long eye relief makes it extremely comfortable during long observation sessions while offering you the ability to utilize the averted vision techniques that allow you to see faint details of elusive objects like wispy nebulae and galaxies.


  • EMD anti-reflective multi-coatings ensure bright, high-contrast images
  • All eyepieces in the 82° Series are parfocal
  • A fold-down rubber eyecup prevents stray light from leaking into the eye, further boosting contrast
  • Argon-filled for water and fog proof performance
Focal length 4.7mm
Length 87mm
Width 43mm
Weight 213g; 7.5 oz.
Barrel Size/Type 1.25"
Eye Relief 13.6mm
Field Stop Diameter 6.9mm