Image Engineering
Seite
6
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7
Setup 2:
Position chart (C) in the center of the back wall. The other charts must be positioned on a straight
diagonal line through the image center to be in the image corners. Use the right wall to attach the top-
right chart (B) and bottom-right chart (A). Use the left wall to attach the top-left chart (A) and bottom-left
chart (B):
Image 02: Chart positions, Setup 2
4 ILLUMINATION INTENSITY
You can adjust the intensity of the fluorescent tubes inside the box via the illumination level knob outside
the device. The intensity panel shows the actual intensity in percent. Turn on/off the tubes via the on/off
button.
To get the best performance measure, adjust the intensity so that the brightest area of the OECF grey
patch fields around the center chart (C) is on its possible maximum but not saturated.
You can put the density filters over the fluorescent tubes for low-intensity use. The actual intensity could
be calculated via the density factor of the installed filters.
Measuring and noting the lux value inside the box on a defined position is recommended.
5 CHART HANDLING
You must be very careful with the test charts. While positioning, please ensure that you will not touch
the chart surface.
