GRASS VALLEY LDK 3000+, Руководство пользователя

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LDK 3000+ High-Definition Camera Head User’s Guide (v1.0) 59
Chapter 5 - Video setup
5.8 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.
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Note
☞
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.
5.8.1 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)