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Small black 1.25 inch barrel eyepiece with silver locking eyeguard and fold-down rubber cup

Tele Vue

Tele Vue DeLite 3mm Eyepiece 1.25" Barrel

SKU CH-KWZ2-35B69

High-magnification 3mm eyepiece with 62-degree field and 20mm eye relief for short focal length telescopes

  • 20 mm eye relief for comfortable extended viewing
  • 62 degree apparent field delivers expansive views
  • 0 mm focal length provides high magnification
  • 25 inch barrel fits standard focusers
  • Locking slide eyeguard stays in your chosen position

High-magnification 3 mm eyepiece

The Tele Vue DeLite 3 mm eyepiece delivers high magnification for short focal length instruments, including all Tele Vue refractors. Its 1.25" barrel fits standard focusers and it is parfocal with Group B eyepieces. The 62-degree apparent field provides expansive views while go-to telescopes track celestial targets.

Optical performance under sustained viewing

Fully multicoated optics maintain contrast and light transmission during extended observing sessions. The 62-degree apparent field remains sharp to the edge without the distortion that wider designs can introduce at this focal length. Generous 20 mm eye relief allows comfortable viewing for long periods, even for eyeglass wearers.

Ergonomics and handling

A proprietary locking eyeguard slides to the preferred position and stays fixed, preventing accidental shifts in the dark. The fold-down eyecup adds flexibility for observers with or without glasses. Compact, lightweight construction reduces strain on the focuser and keeps the overall balance of the telescope steady during use.

Highlights

  • 20 mm eye relief for comfortable extended viewing
  • 62 degree apparent field delivers expansive views
  • 0 mm focal length provides high magnification
  • 25 inch barrel fits standard focusers
  • Locking slide eyeguard stays in your chosen position

Specifications

No published specifications for this item yet.

Questions about this item

Does the 3mm focal length demand high power from the telescope's tracking system during all-night sessions?

The eyepiece itself draws no power; it is a passive optical component that relies on the telescope mount for tracking.

What telescope barrel size must I already own to use the 1.25" diameter barrel?

You need a telescope with a standard 1.25" focuser or diagonal to accept the barrel directly.

Will the 20mm eye relief stay parfocal with my older Group B eyepieces when swapping during a session?

Yes, it is parfocal with Group B eyepieces, so minimal refocusing is needed when changing between them.

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