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Color distortion, coloring light
| Light Glossary |
Gels not only correct the color of light sources relative to one another or the film, they can also be used to distort light for dramatic or artistic purposes. thus far, no permit is required. video tip, see: white balance.
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Guide number (flash), английский
Guide numbers proclaim the light output of electronic flash units more realistically than watt/seconds do, but still ignore such essentials as reflector design. the guide number divided by subject distance represents the theoretical f-stop, but since you spent so much for that meter - exercise it.
Window gel, английский
Gels for color conversion (such as 5,500k to 3,200k) are available in wide rolls to cover windows. tip: if you see through them, wrinkles and reflections can be a problem.
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