This item is the Canon EF 24-105mm F/4 L IS USM lens. It has a constant minimum aperture of f/4 all through the zoom range. It has an ultrasonic motor for fast, quiet focusing, and it has an image stabilizer for improved hand-held photography. This lens is in excellent+ condition. I am the original owner and have treated it well. I used it lightly/infrequently. It has never been dropped or subjected to any extremes. It has no dents, dings, cracks, or scratches. Everything works very well. The focus and image stabilization are smooth and accurate. The zoom ring turns smoothly as it did when it was new. The rubber weather proofing seals are still in excellent shape and do their job keeping the weather elements out. The glass is pristine. I always kept a UV filter over the front, and the surface of the front and rear elements are like new. Internally, there is no fogging or haze. All lens elements are crystal clear. There are a few very tiny dust bits on some internal surfaces, mostly out toward the edges. These would not have any impact on image quality. The EW-83H lens hood is in good shape. It still mounts on the lens and does its job. It has no breaks or cracks. However, it does have some wear on it. It has some scuffs and scratches. The front and rear end caps are in excellent condition, The front lens cap is fairly new as I lost the original and replaced it with an updated original Canon lens cap. The LP 1219 leather pouch (I think it is leather) is in excellent shape. It is clean and has no tears. The lens will come packed in its original box. If you live in the Denver, Colorado area, you can pick this up and I will refund your shipping costs.