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Focus 70 Live Highly Affordable HD System Camera User’s Guide (v1.1)
Chapter 5 - Video setup
☞
Note
☞
Note
If an exposure time other than nominal (Nom.) is selected, the
non-standard
indicator in the
viewfinder lights (only for ocular viewfinders).
5.7.2 Lighting correction
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 Hz. To reduce flicker select the frequency closest to the frequency of the lights and then
vary the lighting control in the
PRODUCTION
SETUP
>
EXPOSURE
>
LIGHTING
menu to obtain
the best result.
5.7.3 V-Shift (vertical acquisition shift)
When shooting monitors with (almost) the same display frequency as the camera’s, for
example TV sets, a horizontal black bar can be seen in the viewfinder. This phenomenon occurs
because the camera is blanking while the monitor is not. The V-shift
function shifts the camera
blanking to synchronize it with the blanking of the monitor.
In the camera menu, navigate to the
PRODUCTION
SETUP
>
EXPOSURE
>
ACQ
TIMING
menu
and switch on the
V-SHIFT
item. Use the
V-SHIFT
TIME
item to change the time shift until
the horizontal bar disappears.
Value
Function
Nom. nominal
setting
Var
Variable exposure time
1/200 s
for fast moving objects
1/500 s
for fast moving objects
1/1000 s
for fast moving objects
50 Hz
for shooting under 50 Hz lighting (adjustable with Lighting correction)
60 Hz
for shooting under 60 Hz lighting (adjustable with Lighting correction)
Exp.
Time
CAM
Summary of Contents for Focus 70 Live
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Page 18: ...18 Focus 70 Live Highly Affordable HD System Camera User s Guide v1 1 Chapter 1 Introduction ...
Page 74: ...74 Focus 70 Live Highly Affordable HD System Camera User s Guide v1 1 Chapter 5 Video setup ...
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