Light
White Light is a combination of red, blue, and green, which are the primary colors. If you combine any two if these primary colors of equal amounts, then another color comes. There are three possible colors for primary colors, and so that means that there are three new colors that can be made. Here are the three possibilities:
Red + Green = Yellow
Red + Blue = Magenta
Green + Blue = Cyan
The new colors, yellow, magenta and cyan are called the secondary colors.
Filter
A filter is any substance that takes in light. A filter pass on and show their own color light and also absorb their complementary color of light.
A filter is any substance that takes in light. A filter pass on and show their own color light and also absorb their complementary color of light.
- A yellow filter shows its yellow light and absorbs its complement blue light.
- A magenta filter shows a magenta light and absorbs its complement green light.
- A cyan filter shows cyan light and absorbs its complement red light.
Another type of filter is a neutral density filter and it has equal amounts of yellow, magenta and cyan and it absorbs all color of light. Just like a colored filter, a neutral density filter show their own color of light and absorb its complement color.
