Yes, it can - the option you're after is 'auto exposure bracketing' (AEB), which can most easily be configured from the quick menu - select the meter (the -3 to +3 scale), press 'SET', then turn the control wheel. At this point, the little indicator marker should split into three, which will mean that the next three shots the camera takes will have normal exposure, under exposure and over exposure, with the difference in exposure being selectable. Hp Deskjet 940c Manual Close Up Toothpaste Theme Song. more. For more details, see page 105 the. Note that this is more flexible than just plus or minus one stop - you can do other values from 1/3 of a stop to 2 stops (or maybe more - 2 stops is the limit on the 550D) if you want to. The custom function you found is unrelated to this - that allows you to select whether you get 1/2 or 1/3 stop increments when changing shutter speed or aperture. You can simulate multiple exposures in post-processing. The custom setting you found is not for taking brackets of shots, it's simply for setting whether you want 1/2 stops or 1/3 stops as the units for partial-stop settings on the camera.