I have a few starting questions that have just popped into my head. This is my first SLR with an autofocusing lens, and my first DSLR. 1. Is it bad to move the focusing ring while the lens is set to Auto-focus, or while the camera is turned off? 2. In Auto-P and some other modes, I have the camera set to take both a RAW and JPG copy of the shot. After looking at the two copies on my computer in iPhoto, I noticed that the contrast and color looks a lot different between the two. The JPG seems to have darker colors and so on. Why is this? 3. I think I read the camera body of the 450D is rated to last 100,000 shots. What happens after I reach that? Does the body just stop working and break down, or is there a very good chance it will last a lot longer than that? Is that number just an average? thanks so much for any answers!