GRASS VALLEY DMC 1000, Руководство пользователя

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68 DMC 1000 Digital Media Camcorder User’s Guide (v4.0)
Chapter 5 - Video setup
5.4 Gain selection
Depending on the available light levels you may need to adjust the gain of the camcorder.
Setting the gain level higher may introduce more noise into the image. Select the gain value
with the up/down
Gain selection switch on the left-front side of the camcorder.
Press the switch up or down for a short period to select to select one of the five preset gain
settings: [-], [0], [+], [++] and [+++].
☞
Note
☞
Note
The actual value of the gain in dB is assigned to these symbols in the
VIDEO > LEVELS > GAIN > GAIN PRESET
menu.
The gain indicators in the viewfinder permanently light to indicate the value selected. (The [+]
and [++] indicators light when the gain is [+++]).
Variable gain
The gain selection switch can also be used to vary the gain continuously between its minimum
and maximum value.
1. Hold the switch continuously in the up or down position until the indication VAR appears.
2. Use the rotary control at the front of the camcorder to change the gain in steps of 0.1 dB
3. You can change the gain as long as the value text is visible in the viewfinder.
4. Press the gain selection switch once to bring up the variable gain again. Change the value
using the front rotary control.
5. Press the switch again to go to the nearest preset value.
Operate Gain Output White Bal
User 1 User 2
Monitor
Warning
Save
Std.
Recall
Marker
Stby +
-
Cam
Bars
Clear
ND 1/4
ND 1/16
ND 1/64
1
2
3
4
+
-
Contrast
Gain selection switch
Symbol Gain value
- can be set to: -6 dB or -3 dB
0 is always 0 dB
+ can be set to: 6, 9, 12 or 18 dB
++ can be set to: 9, 12, 18 or 24 dB
+++ can be set to: 30, 36 or 42 dB