Eyepiece Tele Vue DeLite 15 mm 1.25" — 15mm focal length, 1.25-inch barrel

The Tele Vue DeLite 15 mm eyepiece with a 1.25" barrel is an optical accessory for visual observation with telescopes. With a 15 mm focal length it delivers medium-power views suitable for observing planetary details, lunar surface features and many brighter deep-sky objects. The eyepiece is built to fit standard 1.25" focuser tubes and emphasizes comfortable eye relief, compact lightweight construction and neutral contrast for night-time observing sessions.

Advantages

The DeLite 15 mm combines a compact, lightweight form factor with an optical design that provides good contrast and comfortable eye relief for observers who use eyeglasses or prefer a relaxed viewing position. Its 1.25" barrel ensures compatibility with the majority of amateur telescopes and accessories. The construction balances portability and optical performance for field use and home observatories.

Suitable for

• Visual planetary observation at medium magnification
• Lunar surface detail studies
• General deep-sky viewing of brighter nebulae and star clusters
• Portable observing sessions and outreach events
• Observers who require comfortable eye relief or wear eyeglasses

Key specifications

• Focal length: 15 mm
• Barrel diameter: 1.25 inches (standard)
• Optical design: multi-element eyepiece optimized for visual use
• Weight: lightweight design for portability
• Eye relief: designed for comfortable viewing, suitable for eyeglass wearers

How to use

Insert the 1.25" barrel into your telescope’s focuser or diagonal and secure it with the focuser thumbscrew. Achieve sharp focus by slowly adjusting the focuser while viewing a bright target such as the Moon or a planet; fine focusing is recommended to reveal high-contrast detail. For best results use appropriate magnification for your telescope’s aperture and atmospheric conditions. If you wear eyeglasses, position your eye at the eyepiece until the full field is visible, then tighten the focuser gently to retain that position.

Usage recommendations

Use the DeLite 15 mm eyepiece for medium-power work: choose observing targets that match its magnification range, perform careful focusing under steady seeing conditions, and pair it with a suitable diagonal or Barlow lens only if additional magnification is needed. Store the eyepiece in a padded case and keep the lenses covered when not in use to maintain optical performance.