The manfrotto pro light tlb 600 tele lens backpack is designed to safeguard a pro digital slr with up to a 600mm lens attached while keeping it as light and compact as possible a special padded cradle divider snuggly fits around the base of the lens where it joins the camera and provides important stability to the heavy load there is also an adjustable circumference divider that will fit around any lens diameter and an internal securing strap which makes sure the camera and lens are always ex