Vortex Raptor 8.5×32 binoculars bring the porro prism system to a new, higher level. These binoculars have a wide field of view and are resistant to dew, water and dust. The multi-coated optics provide a clear and crisp image with excellent color reproduction - even in poor visibility. A wide range of eyepiece adjustment allows people of all ages to use this excellent binocular.