Operation Manual

4
Basic Operation
Using Lumidisc
The Lumidisc is used to measure light falling on green-screen walls, paintings
or flat art. It is also used to adjust lighting ratios with multiple light sources (See
page 24) or when taking Lux and Foot-candle measurements (See page 13, 15).
To measure light with the Lumidisc, slide the Lumisphere mounting to the right
(same as if measuring reflected light), then insert, at an angle, section B of the
Lumidisc into slot A of the meter body and press down on the strap eyelet C to
secure the Lumidisc.
Slot A
Strap eyelet C
Lumidisc
Section B
The Lumidisc is removed in reverse order to the mounting method.
At this time the strap eyelet of the Lumidisc should be pulled up and away
from the meter body.
Be sure to handle the Lumidisc correctly to prevent damage that may occur
if mounting or removal is incorrect.
When the Lumidisc is not being used, do not attach it at the right of the
Lumisphere for storage. This will block light falling on the Lumisphere and
affect the accuracy of the measurement.
The Lumidisc is an important light receiving unit. Please handle with
care and try not to mark or soil. Wipe Lumidisc with a dry soft cloth if it
becomes dirty. Never use organic cleaners (like thinner or benzene) to clean
Lumisphere.
l
l
l
2)
7