Panasonic HVX200A Operating Instructions - Page 51

Synchro scan

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With artificial lighting and especially fluorescent lights and mercury-vapor lamps, the luminance changes in synchronization with the power line frequency. When this frequency is 50 Hz, mutual interference will occur between the camerarecorder's vertical 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 artificial lighting or adjusting the white balance, set the shutter speed as follows. Progressive mode OFF (60i) 30P 24P/24PA/24PN Shutter speed 50 Hz 60 Hz 1/100 OFF (1/60) OFF (1/50) 1/60 OFF (1/50) 1/60 • The gain is fixed at 0 dB with a shutter speed of 1/15. Synchro scan Set the shutter speed of the synchro scan (used when shooting a television or computer monitor) in the setup menus, SCENE FILE screen, SYNCRO SCAN. (Page 100) • Adjust the shutter speed to match the frequency of the television or computer monitor to minimize the horizontal noise that appears when shooting such subjects. • By switching to progressive mode you can also shoot PAL system television screens. • When the OPERATION TYPE option in the SCENE FILE screen (page 100) is set to FILM CAM, the shutter opening angle can be adjusted from 10° to 350° in 0.5° steps. Example: When the recording frame rate is set to 24 fps and the exposure time is halved, 1/24÷2 = 1/48 = 180° (1/24 = 360°) In the default setting (180°), this becomes 1/2 of the exposure time. If it were 90°, it would be 1/4, and if it were 45°, it would be 1/8 of the exposure time. (Shutter opening angle: This is equivalent to the shutter speed of a film camera, and a wider angle results in a longer exposure to light.) • If the shutter speed is displayed in blue characters followed by (1/60), you cannot change the shutter speed in the blue characters while the current recording format is used. The speed is fixed at (1/60). You can change the progressive mode in the setup menu with REC FORMAT in the RECORDING SETUP screen. (Page 106) Shooting 51

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Shooting
51
Synchro scan
Set the shutter speed of the synchro scan (used
when shooting a television or computer monitor) in
the setup menus, SCENE FILE screen, SYNCRO
SCAN. (Page 100)
• Adjust the shutter speed to match the frequency
of the television or computer monitor to minimize
the horizontal noise that appears when shooting
such subjects.
• By switching to progressive mode you can also
shoot PAL system television screens.
• When the OPERATION TYPE option in the
SCENE FILE screen (page 100) is set to FILM
CAM, the shutter opening angle can be adjusted
from 10° to 350° in 0.5° steps.
Example: When the recording frame rate is set to
24 fps and the exposure time is halved, 1/24÷2 =
1/48 = 180° (1/24 = 360°)
In the default setting (180°), this becomes 1/2 of
the exposure time. If it were 90°, it would be 1/4,
and if it were 45°, it would be 1/8 of the exposure
time.
(Shutter opening angle: This is equivalent to the
shutter speed of a film camera, and a wider angle
results in a longer exposure to light.)
• If the shutter speed is displayed in blue
characters followed by (1/60), you cannot change
the shutter speed in the blue characters while the
current recording format is used. The speed is
fixed at (1/60).
You can change the progressive mode in the
setup menu with REC FORMAT in the
RECORDING SETUP screen. (Page 106)
With artificial lighting and especially fluorescent
lights and mercury-vapor lamps, the luminance
changes in synchronization with the power line
frequency. When this frequency is 50 Hz, mutual
interference will occur between the camera-
recorder’s vertical 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 artificial lighting or
adjusting the white balance, set the shutter speed
as follows.
• The gain is fixed at 0 dB with a shutter speed of
1/15.
Progressive
mode
Shutter speed
50 Hz
60 Hz
OFF (60i)
1/100
OFF (1/60)
30P
OFF (1/50)
1/60
24P/24PA/24PN
OFF (1/50)
1/60