Apple LC520 Specifications download pdf (Page 171)

Adjustments Light Meter Setup - 38

To measure a display

screen’s luminance,

1 Set the scale switch to

the bottom position (to

set up the 10-50 fc

scale).

2 Place the lens against the

middle of the screen and

read the bottom scale.

Note:

When the light meter

is not in use, slide the scale

switch to its top position,

and store the meter in its

protective case.

Important:

If you suspect the

light meter is giving false

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