Okay, you'll have to open them in DPP (the Canon software). You'll notice they display with the crop superimposed on them. Click on the Trim tool for each one and click on Clear. When you've done them all, don't forget to save them. Now when you open them in Bridge, you'll see them in 3:2. I had mine set to 5:7 as that is predominantly what I sell. No major problems, except that I couldn't remove it in ACR. It just wouldn't do it. Pity DPP doesn't seem to let you you batch process the trim removal. If you find a way to do that, post it here. Might save someone else a hassle.