How To Use The Lumidisc; How To Measure Light Contrast; Using The L-308Bii As An Illuminance Meter - Sekonic FLASHMATE L-308BII Operating Instructions Manual

How to measure light contrast

9.1
See page 3 '3.2 How to fit the Lumidisc'.
selector.
Lumidisc toward the main light source (turn off the
auxiliary light source). Take reading.
source (turn off the main light source).
determine the contrast.
(Example) If you read F16 for the main light source and F8 for auxiliary light source, the
difference between them is two F stops. Then you will obtain 4:1 contrast as shown
in the above table.
N O T E
To obtain exposure, hold the L-308Bll close to the subject and point the
l
Lumisphere towards the camera with the main light and auxiliary light on.
9.2 Using the L-308B II as an illuminance meter
reading.
(Example) If you read EV9
the approx. illuminance
value is 1800lx.
ow to use the Lumidisc
10