GRASS VALLEY LDK 3000 -, Руководство пользователя

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LDK 3000 HD camera User’s Guide (v1.0) 59
Chapter 5 - Video setup
5.7 Exposure time
The exposure time values of 1/200, 1/500, 1/1000 and 1/2000 of a second are used to capture
fast moving objects so that these can be played back sharply in slow motion. The value
selected depends on the speed of the moving object.
Figure 5-3. Exposure time controls
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Note
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Note
Increasing the exposure speed lowers the camera’s sensitivity proportionally.
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Note
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Note
The V-shift function has been disabled. Due to the nature of the CMOS sensor the V-shift
function is not necessary.
5.7.1 Selecting the exposure time
The momentary up/down Exposure time switch gives a choice of exposure time settings. If
an exposure time other than nominal is selected, the Non-standard indicator (!) in the
viewfinder lights.
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Note
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Note
When the exposure time is changed, a very short interference in the video signal may occur.
This is due to the nature of the CMOS sensor and does not indicate a defect.
VTR start
Audio Level
Select
V
shift
Clean
scan
Exp.
Time
White
Bal.
V-shift switch
(not used)
Clean scan
button
Exposure time switch
Value Function
Nom. nominal setting
Clean scan enables the exposure to be varied
1/200 .. 1/2000 for fast moving objects
50 Hz shooting under 50 Hz lighting (adjustable)
60 Hz shooting under 60 Hz lighting (adjustable)