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.
Vertical shift (V-Shift)
Sometimes when shooting TV screens or monitors with the same display
frequency as the camera, for example TV sets, a horizontal black bar is seen in the
viewfinder because the camera is blanking while the TV is not. The
V-Shift switch
(18) shifts the camera blanking.
The
V-Shift switch
(18) at the front of the camera is spring-loaded with a central
rest position. Holding the switch in the + or - position moves the bar up or down so
that it is no longer visible in the viewfinder. This function is only available when the
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)
