Pentax UP 8-16x21 ZOOM Brown BinocularsThe Pentax UP 8 16x21 ZOOM binoculars in Brown are a compact, lightweight binocular with reverse porro prisms. The fully multi coated BaK 4 prisms provide high transmission of light and with the 8 16x magnification you get a wide zooming range. When zoomed in as far as 16x magnification, in order to reduce shaking of the image the UP 8 16x ZOOM binoculars have an integrated 1 4" 20 socket for connecting to a tripod for easy observation. The binocular