Cameras need help
How the Eye Sees Light (2)
Since the camera doesn't have a brain, it needs help to compensate for color temperature changes.
Filters
One thing a camera can do to compensate for changes in color temperature is to use filters. Most cameras have a built-in filter wheel. This is a device that will allow you to place one of several filters between the lens of the camera and the beam splitter. Most cameras are set up to operate with TV studio lights, which have a color temperature of 3200° K. If you go outdoors to shoot, you will change the filter wheel to compensate for the change of color temperature.
Black Balance
Changing the filter wheel is only the first step. Because clouds, shade, reflections, and other conditions all have ...
Get Basic TV Technology, 4th Edition now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
