Set the brightness to minimum and slowly increase it until the screen starts to emit light. Now adjust slowly and carefully back and forth around this point until you find the exact location that is just below the point where the screen emits light. Jump to step 9. 8. Now use the Brightness control to adjust the active area so that it just merges with the black of the non-scanned area. The Brightness setting has to be on the verge so that the smallest increase to it would make the active scanned area discernible.
Blackpoint calibration is now complete.
Please adjust the scanned area back to how it was. Remember to keep the the ambient lighting level low or moderate and especially constant and do remember to calibrate the blackpoint periodically, but only after the monitor has been stabilized. Accurate Image Manipulation for Desktop Publishing Copyright Timo Autiokari, 1999-2001.