SIGMA 17-50mm F2.8 EX DC HSM Pentax K-mount Focal Length (Wide): 17mm Focal Length (Tele): 50mm Maximum Aperture: 2.8 Accessories included, other than the lens body: hood, front cap, rear cap, soft case, original box (all genuine), and a protective filter (inexpensive). Purchased new several years ago, I immediately had the focus adjusted at a Pentax service center. The lens was then mounted on a K-5 body and had its focus adjusted by Sigma. However, I only used it a few times before I stopped using it. It has been stored in a dehumidified storage, and of course, it is in working condition. There are no noticeable scratches, and I can't see any dust or mold. I think it's in very good condition.