The Sky-Watcher 28mm LET 2″ eyepiece is a modified Kellner with large eye lens, 20mm eye-relief and twist-up eyecup for comfortable viewing at a remarkably low price.

Fully multicoated optics and blackened interior for brightness and contrast.

Specification

• Focal length : 28mm
• Apparent field of view : 56°
• Nosepiece : 2″ with milled undercut and filter thread
• Field stop diameter : 31mm
• Number of elements : 3