The lens changer 15 v20 from think tank is a modular padded nylon lens pouch designed to hold smaller lenses such as a 50mm f14 with hood in shooting position 85mm f18 hood reversed or a 100mm f28 macro without hood the wide mouth draw string opening allows for quick one handed access on the go the lens changer attaches to any think tank photo modular belt or belt back not included available separately shoulder strap not included