The 20-60×60 WP Colorado Spotting Scope features a straight focusing eyepiece system and smooth focusing knob for magnification adjustment. The fully coated Porro lenses maximize light transmission and offer bright, clear, high contrast views in all types of lighting and weather conditions. The large objective lens increases light transmission, delivering brighter images in low light conditions. Designed with shock absorbing rubber armor so your scope stays secure from movement from one location to another. Protected by a One Year Warranty.