When my photo reminder alarm went off at 11 PM, I had an idea for a setup. I moved a clock to my daughter's desk, hung a set of old blinds on a light stand, and put an LED flashlight on another light stand behind it to simulate light coming in through a window. I set the camera's color balance to 3,400 K so the flashlight's 6,000 K light would be cool blue. I set aperture priority to get the maximum depth of field and dialed in about one stop of underexposure.
