Canon 30D - Manual (Page 26)

Page 26 of 35 © Ken Rockwell 2006
AEB (Auto Exposure Bracketing): I leave this OFF (one dot). In the old days
of film, less skilled photographers would guess and try several exposures for
each shot, hoping to have at least one turn out. This is obsolete in digital,
since you can see the exposure on the LCD monitor. Ansel Adams had stern
words for photographers who had to resort to bracketing, even in the days of
film.
If set on the 30D, the 30D makes a normal shot, then a darker one followed
by a lighter one. It blinks things in the finder to let you know this is going on.
Be careful: if you set this by accident, only 1/3 of your photos will be correct,
and the other 2/3 will be too light or too dark. The 30D remembers this even if
it goes to sleep.
If you do want to use this, it's easy to set: select it with the big dial, press SET
to be able to change it, and spin the dial to select how far away the bracketed
exposures will be. Be sure to press SET again to lock these settings,
otherwise the 30D will ignore whatever you just set.
Once set, it's easy to use. Select the continuous drive mode and hold down
the shutter for three shots each time.
I don't suggest the Single Frame mode for this. If you use it, you have to press
the shutter three times for each bracketed series. If you release the shutter,
the 30D will still make the next shot at an altered exposure.
You can tweak this in Custom Function 09.