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39 (E)
SHOOTING
ENGLISH
• With artificial lighting and especially fluorescent lights
and mercury-vapor lamps, the luminance changes in
synchronization with the power line frequency. In
areas where this frequency is 50 Hz, mutual interfer
-
ence will occur between the camera-recorder’s verti-
cal sync frequency (approx. 60 Hz) and the lighting
frequency (50 Hz). This means that the white balance
may change periodically.
Before shooting in areas with a 50 Hz frequency or
adjusting the white balance, set the shutter speed to
1/100.
• The higher the shutter speed, the lower the camera’s
sensitivity.
• If the shutter speed is increased when the auto iris is
set (when the F-number is not displayed), the iris will
open (the F-number is reduced) so that the back
-
ground is more blurred and the subject stands out.
• Shooting at a slow shutter speed may give rise to
such problems as after-image, a deterioration in the
image quality and difficulties in focusing.
• When a slow shutter speed has been selected,
images are shot with the CCD taking more time than
usual to accumulate the signals.
As a result, very small brilliant points that are not usu-
ally visible may be recorded as the images: this is
normal and does not indicate an error or malfunction
-
ing.
4 When you press the multi dial, the iris and gain val-
ues are displayed on the screen.
5 Turn the multi dial to select the F-number.
6 When OPEN is selected as the F-number, q moves
to the gain value.
7 Turn the multi dial to select the gain value.
• When “IRIS” has been selected as the FOCUS RING
item setting on the SW MODE screen using the
menus (
P62-64), you can use the focus ring to adjust
the iris and gain but only when you are shooting in
the auto focus mode. (
P69)
Synchro scan shutter speeds
A synchro scan shutter speed is a shutter speed
used to shoot TV screens or PC monitor screens.
The synchro scan shutter speed is set using the
SYNCHRO SCAN item on the CAMERA SETUP
screen when the synchro scan shutter speed has
been selected by the multi dial. (
P66)
• If you adjust the shutter speed to match the fre-
quency of the TV screen or PC monitor screen, you
can shoot the screen while minimizing the horizon
-
tal noise that is generated when TV screens are
shot.
Iris and gain adjustments
Iris (F-number):
CLOSE, F16-F1.7, OPEN
Gain value:
0 dB, 3 dB-15 dB, 18 dB
NLNOM
cRKS
MÇ_
SHUTTER/IRIS
VOL/JOG
PUSH
NLNOM
cOKU
MÇ_
S
HUTTER/IRIS
VOL/JOG
PUSH
NLNOM
lmbk
PÇ_
S
HUTTER/IRIS
VOL/JOG
PUSH
AG-DVC60E_En.fm 39 ページ ２００４年９月２日 木曜日 午後１時４３分