Jim Zuckerman

You have several Exposure mode choices on the camera, and they affect the exposures you get when using flash. They even have a bearing on the color balance in your pictures. For example, notice in the picture of my wife and Rexie, our great Pyrenees, that the color of the light in the background is yellowish while the lighting in the foreground is white without any apparent color shift. I was able to do this because I used Aperture Priority to choose a narrower aperture which, in turn, forced the shutter speed to be slower. Av helps to give you a correct exposure not just for the light emanating from the flash, but it helps make the ambient light in the room expose correctly as well. In so doing, it picks up the color of the room lights. In this case, since I was using a daylight white balance (which is the same WB as for flash—it correctly balances light that is 5500k degrees Kelvin) the tungsten lights in the room turned out yellowish.