The OP/TECH USA 18" Rainsleeve is a polyethylene sleeve made to protect an SLR camera with a lens up to 7" in diameter and 18" in length. The sleeve protects the gear from dust and inclement weather. It is designed for handheld use or tripod application. It has a unique eyepiece opening adapts to most viewfinders for viewing through the lens. Camera & lens controls are easily visible and operable through the sleeve. Drawstring lens opening offers easy access and a snug fit.