> But if there only small parts of dark areas - I'm saying it another one > time - your pupils will shrink and energy will be not enough to force > blooming. It is because human see not only border between dark and light > object, but also scene around them. I've taken a picture for you, twice in fact. http://johannes.eventify.de/kiste-temp/No_blooming.JPG http://johannes.eventify.de/kiste-temp/Natural_blooming.JPG These are grayscale shots of a tree with a bright sky in background. I didn't touch anything but contrast and brightness, the blooming effect is just caused by the camera lens. So there is a pure natural blooming in these very bright pictures. But you still say you wouldn't apply your artificial blooming to bright pictures, because it wasn't natural? Kiste