The all in one camera and lens covers from wildlife watching protect your equipment from hot cold and wet weather and are also great for protecting against dust and sea spray a draw cord at the back can be tightened or loosened depending on conditions and a hand can be slipped inside the hood to operate this size 2 reversible olive version fits cameras with a lens up to 36cm in length 12cm dia inc hood ie canon 70 200 f28 300 f4 nikon 80 400 vr