Mac users interested in Equalight by robin myers generally download:
This is a program for all fine art photographers that need a solution for lighting falloff.
Equalight compensates an image for lens falloff and lighting falloff. Lens falloff, also known as cosine fourth falloff, is a result of bending light through a lens and its aperture. The wider angle the lens, the more the light intensity falls off from the center to the edge of the image.
