Blackmagic Design DV/RESSTUD User Manual

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342

Lesson 12 Performing Primary ColorCorrections

TIP You can switch back to the keyframe editor and hide the video scopes to

free up your graphics card’s processor and improve play back performance.

In general, the bottom of the trace should fall somewhere between 0 and 128 on the

graph. If some elements of the shot are absolutely black, then the trace should fall

closer to 0. If the darkest part of your image is more of a dark gray like the trees on our

hillside, then it might fall closer to line 128 on the graph. For this shot, you can fine tune

the Lift and Gain master wheels so your trace stretches between 0 and 1023.

4 Drag the Lift master wheel until the bottom of the green trace falls just below the

128line.

5 Drag the Gain master wheel so the top of the green channel just skims along the

896line.

Next, you’ll fine tune the color imbalance or cast in this shot. However, let’s discuss a

little additive color theory before you evaluate the color. To create pure white using

additive colors, you mix an equal amount of red, green, and blue. On a Parade scope,

awhite image would have the red, green, and blue traces completely level along

thetop of the graph. Conversely, pure black would have the three color channels

completely aligned at the bottom of the graph. That being the case, you’ll use the

whitesnow and the dark trees in your shot to make color balancing easier.

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