This locks the exposure, but the lock is retained until the camera switches off or the lock button is pressed again. If you reconfigure the star button as AE-lock with hold, it will only lock ...
Think of exposure compensation in relation to your camera’s in-built light meter. Visualize a ‘perfect’ exposure of zero, dialing in -1 exposure compensation will reduce your exposure by one ...
He sets his tripod and takes a four-second exposure in one direction (most photo exposures are about 1/60 of a second or less). Then, with the shutter still open, he’ll swivel the camera to a ...