GRASS VALLEY LDX 864K, Руководство пользователя

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60 LDX 86 High Frame Rate/HD/3G/4K Camera Platform User’s Guide (v2.0)
Chapter 4 - Video setup
4.1.3 Color bar
The color bar is the standard test signal that is used to set up and check the camera before
shooting. When the color bar is selected the following functions are temporarily switched off:
Black Stretch, White Limiter, Zebra and the Safe Area and cadre indicators.The lens iris closes
automatically when the color bar is switched on.
Press the BARS button to switch on the color bar. Initially, the standard color bar is switched on
and the button will light. Press it again to switch on the sawtooth signal. The button lights
orange. Press again to switch off all test signals.
On the camera, use the color bars switch on the left side panel for switch on the standard
color bar:
4.2 Gain
Depending on the available light level it may be necessary to adjust the video gain settings of
the camera.
Press the GAIN button to open the Gain menu. Select
GAIN +
or
GAIN -
to select higher or
lower gain presets. Press
VAR MGAIN
to vary gain in steps of 0.1 dB using the rotary control.
On the camera, gain is selected via the gain switch on the left side panel of the camera:
1. When this switch is pressed initially, the current gain value is displayed in the viewfinder.
2. Holding the switch in the up or down position for a short moment selects one of the five
preset gain settings: -, 0, +, ++ and +++.
The actual value of the gain in dB is assigned to these presets in the
PRODUCTION SETUP >

LEVELS > GAIN > GAIN PRESETS
menu.
OCP
CAM
Bars
Off
OCP
CAM
+
-
Gain