Datacolor Spyder3 Elite Help Manual page 14

Select Tone Response Curve
Help Index
Advanced Feature
Setting an arbitrary tone response curve is an advanced feature not chosen by most
users. It is used to match unusual output devices such as film recorders or in other
special situations.
The Purpose of This Step
This screen allows you to specify a non-Gamma curve as the desired tone response of
the monitor.
The Long Answer
Tone response is a description of how the monitor's output luminance reflects the
input signal. In practical terms, tone response mostly affects the lightness of the
middle and quarter tones of images displayed.
Cineon:
If you want to specify a Tone Response that is not listed in the popup menu, click the
New button to create a new curve to your specifications.
If you open the Curves Window (select Curves from the Tools menu) you can view the
shapes of the various curves as you select them in the menu.