If you are looking at this lens you should know what it is. If not see the following review:

http://www.kenrockwell.com/canon/lenses/24-70mm.htm

The lens is in mint condition and if this is not the best example of this lens anywhere, I'll happily eat my hat! I bought it just over 12 months ago from a guy who had never used it at all. It was, at that point, as new, totally unused. I have given it light use since but it has been meticulously looked after; having a UV filter added from the moment I removed the cap (uv filter not included).The only sign of wear is probably on the EW-83F hood as it has some feint marks but only if you get the angle of light right to see them. If you have ever used one of these hoods you'll know they mark easily anyway. This is a phenomenal piece of kit and I'm sorry to let it go. I picked up the 24-105 mkii and this means that this lens is now surplus to requirements. Its a way better lens than my new purchase but I needed IS. The build is like nothing you can buy from Canon bar maybe the 85mm f1.2. This lens wreaks of quality and is just a very tasty bit of glass. It includes everything that was in the box as new and the carry pouch has never been out of the packet.