User Guide

Adjustments Cutoff - 23
3. Select White from the
Pattern menu.
4. Hold a light meter or
photometer against the
center of the screen.
The screen luminance
reading should be one of
the following:
• 21 (foot candles) on
light meter Model R77
• Upper end of 10 on the
10 through 18 scale of
light meter Model
L248.
• 21 (foot candles) on
the red scale of light
meter Model 246.