Wratten 47B

From Wikipedia, the free encyclopedia

Wratten 47B is the model number of a type of translucent blue plastic used in optics. Manufactured by Kodak, it is most commonly used to calibrate video monitors while using SMPTE color bars, although it also has less-common applications in photography and theater.

 This television-related article is a stub. You can help Wikipedia by expanding it.
 This optics-related article is a stub. You can help Wikipedia by expanding it.
Retrieved from "http://en.wikipedia.org../../../w/r/a/Wratten_47B_6f64.html"