This is a Sigma super-telephoto lens for Canon EF mount cameras, ideal for capturing distant objects. I purchased it about a year ago and used it about once every two months, after which it was stored in a dehumidified storage box. A protective film has been applied since the time of purchase, so there are no noticeable scratches or stains. Please take care of the lens. If you don't like the protector, you can remove it and use the lens as usual. Set Contents: Lens, front cap, rear cap, lens hood, shock-resistant bag, original box, instruction manual, lens body protective cover