for bracketing smarter allocation of +/- so that less under/overexposure
and perhaps with (devs if you want)
different modes depending on what you are trying to do
or chaining Tv/av/iso bracketing
tv bracketing mainly esp if don't want av to change how focusing works
avoid overly long exposures
if indoor, avoid exposure shutter shorter than 1/60 to avoid electric-light flicker
if in places with bright tiny light-sources, needs to detect that to extend further into dim range
some way to meter the scene maybe measure brightness similar to motion detection
also using information form the subsequent brackets to refine
maybe weighing functions also taking into account how long those shots take
if hand-held, avoid overly long shutter times else super blurry shots
if tripod, minimize ISO
for dim-brackets, ISO/av/tv overrides all need to be in place to extend range to minimize overexposure
for focus bracketing maybe use file size
and maybe exclusion ranges to avoid going over
