This Nikon Series E 50mm f/1.8 Ai-S prime pancake lens comes with its front cap. It is for use with F-mount cameras and adapters. There is some very light haze inside and a couple of light scuff marks on the barrel's exterior. Its focus and aperture adjustments are smooth and its glass is free of any fungus or separation to its elements. There is no oil on its aperture blades.