I received my new EF-S 17-85 f/4-5.6 on Thursday and have been playing around with it and it appears that the lens is defective. I was experimenting and taking some shots and noticed that at 17mm, I could not set f/4 (at 17mm focal length in Av mode). I thought maybe I was doing something wrong and when I dl'd the pics I noticed that the EXIF data showed a focal length of 85mm on ALL shots. So it appears that the lens is not reporting the correct focal length to the camera. Has anyone else seen this and is there anything I can try to fix it?
Also, I've never used an IS lens before, and I'm not sure if it's working. I tried turning it on/off and could not tell the difference at 85mm (with the shutter pressed half-way down, because I think this is what activates it). Is the IS very noticeable? Any tests I can do to verify if it's working?
I'm very frustrated right now, this is my first lens after the kit lens for my 20D.