Inverse Square Law
From Nikonians Wiki
A proven statement in physics, repeatable through experimentation. A given physical quantity (as illumination) varies with the distance from the source inversely as the square of the distance. As applicable to flash photography, doubling the flash-to-subject distance reduces the light falling on the subject to one-quarter.
- This page was last modified on 21 November 2008, at 12:03.
- This page has been accessed 2,918 times.