JVC TK-1280E - Page 12

@ White balance adjustment switch
This is used for changing the setting of the white balance.
MANU: Manual! adjustment is possible.
ATW: Accepts different types of lighting (colour tempera-
tures ranging from approx. 2850 K to 7000 K)
using an automatic tracing system.
(TK-1180E uses a TTL system that measures light
entering the camera lens.)
6: : For shooting under the artificial fight such as halo-
gen lamps (colour temperature approx. 3200 K).
Notes:
@ When using the camera under a fluorescence light with
high shutter speed, the white balance may change peri-
odically.
The automatic tracking system may not function proper-
ly when shooting with non-standard lighting or lighting
with a colour temperature that exceeds the range of the
camera. Because it uses a TTL system, if a coloured
object is shot (especially one with a single colour) that
fills most of the camera’s field of view, the colour tem-
perature may be judged incorrectly and the correct
white balance adjustment may not be possible. In such
a case, set to the “MANU” position.
@ White balance adjustment controls
When the white balance adjustment switch is set to
“MANU”, the white balance can be adjusted manually.
G-Mg;: Turn to the “G” side to increase the amount of green
in the picture. Turn to the “Mg” side to increase the
amount of magenta.
B-R: Turn to the “B” side to increase the amount of blue.
Turn to the “R” side to increase the amount of red.
@ IRIS LEVEL control
The brightness control of the monitor picture does not oper-
ate correctly, adjust using this control. Turn OFF the AGC
switch (set to ON at the factory) to adjust the IRIS LEVEL
control.
Monitor picture Adjustment direction
To make it brighter
To make it darker Turn counterclockwise.
Notes:
e This function is activated when the camera SHUTTER
mode select switch is set to AUTO position and when
using the galvanometric-iris lens or the video-iris lens.
@ Be careful not to turn the IRIS LEVEL contro! beyond its
limits as this could cause a malfunction in the camera's
auto-iris control.
@ SHUTTER mode select switch
This varies the shutter speed (the time the change is
stored). Normally, when a fast-moving object is being shot,
still or slow-motion played back pictures will be blurred. In
this case, switching the shutter speed from the normal
speed of 1/50 second to a faster speed allows each frame
to be recorded with greater detail, at the higher speed.
When using a manual iris lens, the brightness of the pic-
ture image will be fixed by setting this switch in AUTO
(Automatic electronic shutter) position, as the shutter
speed is automatically varied according to the light inci-
dent.
Switch position Shutter speed
NORM GEEE 1/50 second
Normally, set to this position.
120 ABOU
(Switches
No.
3
and
4
1/120
second
can be set either in upper
or lower position)
AUTO FEOO ' Automatic electronic
(Switches No. 3 and 4 shutter function
can be set either in upper | (Do not set this switch in this position
or lower position.) when using an auto-iris lens.)
10
Caution:
¢ The automatic electronic shutter function is not acti-
vated for a light object to be shot, such as in outdoor
condition. In such a case, use the camera with the
auto-iris or manual-iris.
Notes:
e Faster shutter speeds require more light than the nor-
mal speed. (In the 1000 mode, the sensitivity is approx.
1/20 that at normal speed; in the 10000 mode, approx.
1/200.)
@ When shooting with the faster shutter speed, or when a
light object is being shot by setting in AUTO position
(the shutter speed becomes faster), the brightness and
white balance may change periodically. Shooting with
artificial lighting (especially fluorescent lights) will cause
the pictures to flicker. Smear (bright horizontal or verti-
cal lines) which can often be seen with solid-state pick-
ups may appear in the picture.