The points you can use to set the range for black level adjustments are displayed.
Note: The points displayed differ depending on the edge settings (Top Edge, Bottom Edge, Right
Edge, Left Edge) and the selected Geometric Correction setting. For example, if Left Edge is set
and 5 × 5 is selected for the Point Correction setting, you see a screen like this:
7. Use the arrow buttons to select an adjustment point and press the Enter button.
The selected point turns orange.
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