Sigma 17-35mm F2.8-4 EX DG ASPHERICAL - Brand: SIGMA - Model Name: EX 17-35mm - Included Accessories: Lens hood - Focal Length: 17-35 Thank you for viewing. I purchased this item used and have been using it, but I haven't used a camera in the last few years, so I am putting it up for sale. Upon listing, I attached it to a camera, but the AF (autofocus) is not working properly, so I am listing it as a junk item.