Fill flash photography refers a method to take
pictures where flash is
used in bright
light to go into the details located in the
shadows. Fill flash is
typically used for shooting outdoors in full sun. Many
cameras have a fill flash method that
triggers the flash of the
camera,
regardless of the amount of light
available.Fill flash can also be used to increase the light of a shot that is backlit, so it is again a way to reduce shadows. When you think your film will be underexposed, use fill flash to improve the amount of film captures light. By adding light to a scene, the colors of the printed photo will be much brighter.