This Olympus Digital 14-42mm f/3.5~5.6 Zuiko ED zoom lens comes with its rear cap. This lens is for use with 4/3 cameras and adapters (NOT micro four-thirds). It has a couple of very light scuff marks on its exterior. Its focus and zoom are both very smooth and its glass is excellent with no fungus, haze or separation to its elements. There is no oil on its aperture blades.