The new legend m series binoculars are backed with the all weather assurance of bushnells exclusive rainguard hd coating and fully water and fog proof built with a lightweight magnesium chassis and fully multi coated optics for amazing light transmission the m series takes these attributes further adding industry leading features such as ed prime glass and a locking eyepiece dioptre and for maximum brightness and clarity plus a dielectric coating to ensure high colour reproducibility and 92