Pentax UP 8-16x21 ZOOMThe compact and lightweight black 8 16x21 U Series UP Binoculars combines aspherical optical elements and BAK4 Porro prisms to deliver edge to edge image sharpness with a wide angle of view. The optical elements are also fully multicoated to provide a high transmission of light. With an 8 16x range of magnification and 21mm objectives, you obtain a wide zooming range and a compact form factor. You can easily spot your targets with a 5 angular field of