In photography we talk about finishing in terms of white light. White light is made up of red, green and blue lights overlapping each other. Along with overlapping all three color and creating white light, when just two colors overlap they create; Magenta, cyan, and yellow.
The combinations
Red and Green makes Yellow
Blue and Red makes Magenta
Blue and Green make Cyan
Each primary color- Red, Blue and Green each have a compliment that then produces white light.
The combinations of the compliments are;
Red and Cyan
Blue and Yellow
Green and Magenta
Filter-substances that absorb light.
Lets say you see a red object, that object is red because it is absorbing blue and green light and the red light is the only part that reflects to you.
In photography filters are used in a way where the primary or secondary colors absorb their complimentary color and reflect the others.
Filers
-pass through their own color of light
-absorb their complimentary color.
This diagram is an example of how each color produces the white light and how two primary colors combine and make secondary colors.
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