Waterproof and fog free the celestron granite 10x42 binoculars are the ideal choice for the outdoor enthusiast whether its bird watching exploring the outdoors or attending sporting events the granite 10x42s are the pinnacle of optical and mechanical design offering 10x magnification and 42mm objective lenses its bak 4 prisms and ed extra low dispersion glass in the optics ensure superior sharpness and colour correction by minimising chromatic aberration included is a carrying case and