Inverse Square Law – A Photographers Take

Seldom would you think that physics comes into play with photography. But you’d be wrong. In fact, the Inverse Square Law states that the intensity of point light source is inversely proportional to the square of the distance from the source. (Say what?!) This means an object twice as far away from the source receives only 1/4 of the light. But this also means that the greater the distance from the source, the less change over a given distance.

However, this is where it gets tricky…