We were shooting brown bears at Lake Clark AK with most of the week having rain and overcast. The Canikon DSLRs and/or their lenses around us were failing from weather penetration. The folks were trying to use rain sleeves, trash bag, their panchos...etc. The wife just exted the lens hoods to keep drops off the front element. The leader of the trip came up to me and quietly said he could not believe our equipment had no problem with the rain.