In order to read some of the materials below, you
will need Acrobat Reader.
CLICK HERE to get the
latest free versions for both PC and Mac operating systems.
What are they and why do you need them? Color bars are an electronically generated signal
that presents bars of
red, blue, green, yellow, cyan, and magenta, gray, black, and white. These are
used at the beginning of a videotape as a reference so that the playback machine and
monitor can be calibrated to insure accurate color saturation and balance. The Society of
Motion Picture and Television Engineers (SMPTE) established the color bar standards.
CLICK HERE for a detailed
explanation on how to use them.
Under certain lighting
conditions, neither auto or manual white balance will provide you with a
pleasing color balance. For instance, if the lighting source for the
shot is the warm glow from a fireplace, white balancing on a card or
object that is white will render the scene with a bluish cast . In
this lighting situation, you will obtain a more pleasing result by
performing manual white balancing on a card that is bluish rather
than white. In effect, you are "tricking" the camera's circuitry into
producing a warmer tone. On the other hand, if you want your camera to
produce an image that is colder, more bluish, you need to white balance
on a yellow or orange card. We have provided you with several warming
and cooling cards. Simply print them out and cut to size.
Without Warming Card
With Warming Card
for the warming & cooling cards
This is a PDF file and must be opened in Adobe's Acrobat Reader. For the
version, please click on the link at the top of this page.
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