Soul Dr. wrote:
Sorry, but you do manipulate the light with your camera by changing aperture, shutter speed, or ISO.
These things change how the original light passing through the lens is recorded on a sensor or film plane.
Shutter speed and aperture determine how much light is captured.
ISO determines how the camera reacts to it.
Once you squeeze those into "manipulate", and then squeeze in composition {ultimately even more important}, then you can squeeze almost anything in ... and the statement is largely useless as a "definition".