If I could only carry one lens in my camera bag, it would be this EF 24-105mm F4L IS USM wide angle-medium telephoto. Its a used lens (I bought it new) but I've kept it in top-notch condition. The glass on both ends is mint without a scratch or mark of any kind, and the barrel is just as clean. The Image Stabilizer is in excellent condition. New from B&H is sells for more than $1,000. Comes in the original box with lens hood, front and rear dust caps, lens bag, and instruction booklet. I'm selling it because I have another lens that covers the telephoto portion and I simply don't need two lenses that do the same thing.