Grass Valley LDK 500 - Manual (Page 58)

Operating instructions | Video preferences 4-19
Selecting the exposure time
The momentary up/down Exposure time switch (16) gives a choice of exposure time
settings.
If an exposure time other than nominal is selected, the Non-standard indicator (33)
in the viewfinder lights.
Lighting
The exposure selection also includes lighting control positions which can be used when
shooting with lighting that is operating at a different frequency to the camera. There
are two positions; 50 Hz and 60 Hz. Each of these positions can be varied further in a
range from -10 to +10. To reduce flicker select the frequency closest to the frequency
of the lights and then vary the lighting control in the
INSTALL menu to obtain the
best result.
Shooting screens
Sometimes when shooting TVs or computer monitors a horizontal bar can be seen
across these screens in the viewfinder. There are two ways of removing the noise bar
from the picture depending on the frame frequency of the display:
• For displays with the same frame frequency as the camera, for example TV sets,
use the V-shift facility.
• For displays with a higher frame frequency, for example computer monitors, use
the Clean Scan facility.
Table 4-5. Exposure time values
Value Function
Nom. - nominal setting
CRT - for shooting sync-locked monitors
1/200 - for fast moving objects
1/500 - for fast moving objects
1/1000 - for fast moving objects
1/2000 - only with IT and ITW versions
50 Hz - shooting with 50Hz lighting (adjustable)
60 Hz - shooting with 60Hz lighting (adjustable)