Light (both natural and otherwise) is an essential tool in photography - here's a gallery dedicated to light use in photos, including low-light photography, black and white available light photos, night and morning photos.
Symphony in Stained Glass
© Patricia MarroquinFlame
© Stefan P. GosattiLife, Liberty and the Pursuit of Happiness
© Patricia MarroquinSunset on Sedona (AZ) Red Rocks with Moon
© Light _STILL LIFE IN US YET
© Ray CharlesNight Shot attempt
© Lem MetroGarden Angel
© Patricia MarroquinPorch Columns - Athens, Georgia
© Tim FieldsShades of Suncreek
© Patricia Marroquin