I didn't know, in fact, other than something about a bellows effect causing you to get screwed on the light.


My macro flashes are just my regular flashes. Between a couple of diffusing umbrellas, they seem to work well. At that point, I just go into manual mode, and try to do what I can metering wise with the histogram, and I know the histogram is wrong for raw, but.... I muddle by. Light gathering with an effective f/22, wow. Pretty harsh. Somebody should be punished! Oh, wait, that's US!