Explore Scientific


Explore Scientific 5.5mm 62° 1.25-inch O.D. Argon-Purged Waterproof Eyepiece

The 5.5mm Explore Scientific 62° Series eyepiece is excellent flat-field multi-element oculars that, with their apparent field of view of 62 degrees and near parfocal design, offer an excellent viewing experience.

The 62°-series eyepiece features a 1.25" diameter barrel that fits onto common drawtubes and accepts most eyepiece filters.

  • Great for viewing celestial objects by using averted vision
  • The fold-down rubber eyecup prevents stray light from leaking into the eye, further boosting contrast.
  • The eyepiece is internally sealed and purged with inert, dry argon gas, which maximizes the life of its internal coatings.
  • The eyepiece is tested by submerging it down to 1 meter of water for 30 minutes.
  • A textured ring on the exterior gives a secure grip.
Focal length 5.5mm
Length 57.5mm
Width 38mm
Barrel Size/Type 1.25"
Eye Relief 12.9mm