User manual

8 • Scanning color negatives
ColorQuartet 5.0 Pro
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darker or lighter image in the highlights, midtones and/or shadows. During this step, don’t
worry if the image has a color cast.
5 • When the gradation is the way you want it, check and, if necessary, adjust the gray balance
as explained in the following steps. This time, you will be moving the red, green and blue
Reversal Curves individually to change the relationship between them. The goal is to put
equal amounts of red, green and blue color into the parts of the image that should be neu-
tral.
6 • In the feedback window, choose 5 pixel average or 9 pixel average as the measurement
size, click on a part of the image that should be white or very light neutral gray, and check
the RGB values that appear in the densitomer window. The three values should be the same
or very close to each other.
7 • If the R, G and B values are not close enough to each other, adjust the Reversal Curves indi-
vidually until they are. Before starting, note the positions of the three small red, green and
It may be easier to work with the curves if you enlarge them by making the
Negative Profile window larger.
To ensure good contrast (separation of color tones) in the major part of the
image, make the curve steep under the part of the Histogram where the
highest columns are seen.
You will often find that a curve shaped like a reverse “S” (flat at the left top,
steep in the middle, and flat at the right bottom) will give the best results.
You may want to check more than one point.
To keep a point for repeated reference, double-click on it. A cross will
appear. At any given time, the cross that is red is the point that is being dis-
played on the densitometer.
To delete a point, click on it to make it red, and then press the backspace key
of your computer.
To find the absolute lightest and darkest points of the image, click on the
white and black fields, respectively, in the densitometer window.