recently just explore some settings for built in Flash on my 40d.
read from the books, there is this func call the FE lock which we can meter on a certain area so that the amount of light to be flash according to that spot.
my doubts is if i am shooting an object just infront of a wide open window, after auto focus it, hold the shutter betton, point at the sky for FE locks, and then go back to the object and fully snap it off.
Supposingly the image produce might not be so bright due to the flash meter the bright sky and give a compensation of lower flash light amount but how come the captured image turns to be super bright?
can anyone share some ideas on this?