To the human eye, it was very dark outside at 6:29 A.M. when I made this photograph of the Pere Marquette River. However, with my digital camera and a 30 second time exposure, I could make it appear much brighter than it actually was. We teach our workshop students that you need to see how your camera sees. F4.5 at 30.0, ISO 100, 18-50 mm lens at 18 mm