I just purchased the T3i a week ago after having a T2i since 2010. I've used ML on my T2i for a few years now and was always able to adjust the digital and analog ISO levels by pressing the ISO button and using the wheel to select the different increments. After installing ML on my T3i, I have found the camera unable to achieve the same control. The only way I am able to select the digital ISO levels like 320 and 640 on my t3i is by opening up the ML menu and changing them there. If I press the ISO button and use the wheel, I am only given the analog levels like 100, 200, 400, ect. I am wondering if there is a setting I have to turn on to be able to select the digital ISO levels on the fly or if the T3i is just not able to do this? Any help on this issue would be great. Thanks.