Hitachi HV-D27, Руководство по эксплуатации

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Lock scan mode shutter speed setting
①
Press the Setup button and open the main menu, then open Sub menu 1. Set the cursor to
SHUTTER by pressing D, select the VARIABLE position with the L-R buttons, again press D
to shift to the variable items.
②
Press the L and R buttons to set the shutter speed in the range indicated below. Set the desired
shutter speed.
1/251.5 1/251.5 1/251.5 1/251.5 1/60.38 1/60.38 1/60.38 1/60.38
L L L L R R R R
(1/50.31 (1/50.31 (1/50.31 (1/50.31: :: :PAL) PAL) PAL) PAL) (1/253.8 (1/253.8 (1/253.8 (1/253.8: :: :PAL) PAL) PAL) PAL)
〜 〜 〜 〜
When picking up e.g., a computer screen having a different scanning frequency, bright or dark
horizontal bars roll vertically across the screen (see figure). The shutter speed can be adjusted to
minimize this effect in most cases.
Minimize bar
Dark
Roll
Bright
Roll
L button
(Slower
shutter)
R button
(Faster
shutter)
Notes
1. Each pressing of the L or R button changes the shutter speed by 1 H. Hold the button depressed
for continuous change.
2. If the display scanning frequency is below 60 Hz, the rolling horizontal bar cannot be stopped.
3. Raising the shutter speed improves resolution of moving objects, but loses sensitivity to the
extent auxiliary lighting may be needed for outdoor scenes. Also, vertical smear increases with
higher shutter speeds due to the physical properties of CCD cameras.