Pentax Jupiter III + 8x22 Binocular (Yellow / Matte Black) Waterproof construction allow these binoculars to be used in the most extreme weather Central fingertip control locks in diopter adjustment Revolutionary dual-axis, single body housing with synchronized eye-piece adjustment to assure correct optical alignmen Fully multi-coated optics to eliminate harmful ultraviolet rays while improving light transmission for high contrast images with no glare or flare