oh also, i should mention a white car will never look white in HDR, it interprets the white as being blown out so it darkens it to gray or blue. black has the opposite effect, it lightens it to gray or blue. HDR means high dynamic range, and is an attempt to digitally create photo's that have more dynamic range on the hystogram than one exposure can get (roughly 5 stops of light). the more color and contrast between light and dark in the photo, usually the better the results will be. having said all of this, i've yet to do an HDR that i like. i just can't get the settings to come out to what i consider a good looking HDR is