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Operation
Parameter for shift correction
This parameter is used to control the degree of the
shift correction (crossed curves compensation).
The neutral area of the subject can be shifted by
the shift correction in such a way that the colors
are considered less disturbing.
The correction is determined for each individual
negative. The resulting degree of correction
depends on the following parameters:
Setting of the parameter K
–
Crossed curves tendency of the film
–
Contrast and the density of the negative
–
Type of subject
–
The preset shift correction has no effect on
negatives without a crossed curves effect as well
as on artificial light exposures.
Modifying the impact of the shift correction:
The impact of the color correction acts in
proportion to the modification of the K-value. If, for
example, the value is increased from 1.0 to 1.5,
the shift correction is 50% stronger.
Example:
Light gray house with a dark slate roof
Crossed curve behavior:
For example, the colors range from magenta
highlights to green shadows. This means that the
facade of the house shows a magenta color cast
while the roof shows a greenish tone.
Shift correction:
The correction eliminates the color cast of the
facade - the important part of the picture, and by
the same extent it increases the green cast of the
roof. However, this fact is considered less
disturbing.
Although the colors themselves cannot be
modified, the general impression of the picture is
improved by shifting the neutral point to the parts
of the subject that are important in the picture.
Standard setting:
Step width:
Parameters
K
AGFA d-lab.3
1.0
0.1
Function
Impact of the shift correction
Range
0.0 - +4.0
2003-06-01 /PN 9008
Settings
099
4.41
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