Canon EF 17-40mm F4 L USM lens. Zoom function is perfect; both autofocus and manual focus work perfectly; autofocus is fast and accurate. The lens element has no obvious scratches, no internal mold, and very little dust. Please see detailed close-up images. The lens shows normal signs of use, but its overall appearance is good. Please see the images; the images are part of the description. Includes: Lens cap The camera will be shipped in suitable packaging (moisture and dust protection). Sent via Austrian Post or DPD, with a tracking number provided.