 Home : Video course : Module 4: Lighting Underwater : Filters Underwater
There is a lot of colorful subject matter down there. Is there any other
way to get at that color apart from lights?
Filters can be employed - within limitations.
The basic principle of filters underwater is that they
allow the same wavelength of light as their own color to pass.
They are only subtractive, they reduce the amount of light, and this is not a good thing!
Unfortunately, filters also stop other wavelengths of light so; ultimately
any color gain is traded against an overall loss of light. A standard 30
red color-correcting filter is pretty cheap and will alter your color
bias. However, there is precious little red light to let through to begin
with so such filters are counterproductive. Better results are gained by
'pumping' up the reds when editing.
Next >> Colour Temperature Underwater
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