In low light, it's usually your eyes that have to adjust. Now it's your expectations. In rain or fog at dawn or dusk your eyes don't plan on seeing much detail. So when you put a pair of Excursion™ series binoculars in front of them, what they see may come as a shock. This composite chassis, roof-prism design is lightweight and packed to the eyecups with quality features, from PC-3® phase-coated lenses to BaK-4 prisms. The result? Outstanding clarity, detail and brightness in low-light conditions. Waterproof, fogproof and coated with ultra-rugged rubber armor.