Seamless Magnification Control: A simple twist of the zoom housing adjusts focal length from 8mm-24mm; Ideal for planetary clusters, lunar details, and deep-sky nebulae observation
Extended Eye Relief for Eyeglass Users: 15 to 18 millimeter eye relief; The foldable rubber eye cups also eliminate any stray light; Whether you wear eyeglasses or not; you are guaranteed a good field of view at a comfortable viewing distance
Versatile for All Observers: Wide 40 degree to 60 degree apparent field of view adapts to planetary and deep-sky targets. Precision stepless zoom mechanism outperforms fixed focal length eyepieces
Mini guide tube to quickly find objects and guiding stars; designed both for visual; as well as for photographic use; 400 mm focal length; With bright; wide field optics puts numerous potential guide stars in view so you will never have to search for one
Have a builtin worm focuser with Brass Compression Ring and 2 thumbscrews; 88 mm focusing range: 10 mm focusing range with microfocusing Helical focuser; the rest is by a fixable; scaled drawtube is made possible by an extremely precise focus adjustment