Canon EOS 5D II; Canon Ef 70-200mm @ 145mm; Gitzo tried; RRS BH-55; RAW capture: f/ 16 @ 1/20 sec, -1 EV, ISO 400; Auto exposure; AV mode; Spot metering; Auto WB
Dawn is the time that marks the beginning of twilight before sunrise. It is recognized by the appearance of indirect sunlight being scattered in the atmosphere, when the center of the Sun's disc reaches 18° below the horizon. This dawn twilight period will last until sunrise, when the diffused light becomes direct sunlight. Here a fellow photographer is atop a dune taking advantage of the warm indirect light.