The Best Lighting Ratios Ideas. Astronomers have discovered six planets orbiting a bright star in perfect resonance. As you can see, a 1:1 ratio signifies an evenly lit surface.

Web in photography, a lighting ratio refers to the relationship between the light intensities of different light sources in an image. Key to fill the most common ratio that cinematographers measure when shooting is the key to fill ratio. As you can see, using a flash as a fill light is so much better than using a bounce card because you get so much more control.