SIGMA Sigma Canon EF-S mount lens 18-35mm F1.8 DC HSM zoom standard APS-C. I have been using the lens as is since I purchased the body only, used, from Amazon. There is probably no dust inside. Even if there is, it's extremely fine. There is no mold. However, there are some scratches on the lens on the mount side. However, they do not affect the shooting. Lens filter included. Body only. The exterior has some scratches and dirt.