Sub Menu 1 - Hitachi HV-D25 Operation Manual

SUB MENU 1

M BLACK Master black level setting
The master black level can be set in a range of -128 to 127. Pressing the R button increases a set
value to make the black level higher, and pressing the L button decreases a set value to make the
black level lower. For zero (0) setting, hold down both the L and R buttons for approx. two seconds.
SHUTTER Electronic shutter mode
The electoric shutter setting is changed over as shown below When VARIABLE is selected, a shutter
speed specified at VARIABLE is used in operation.
In the Auto camera mode, if the Lens Type is set to DC, the shutter mode defaults to AES. If Lens
Type is set to Video, default is to Off
(Note) 1. If the Lens Type is Video, the AES mode cannot be used. If using a manual iris lens, set the
Lens Type to DC and the Iris Mode to Manual in order to use AES.
If the iris opening is proportional to the DC voltage (with manual over-ride), set the Lens Type to
DC and the Iris Mode to Auto.
2. In the AES mode, the CCD operates in FLD mode even if set to FRM.
VARIABLE Variable electronic shutter speed setting
8 1/30 1/25 PAL
The camera delivers intermittent video signal output.
required to use the video memory.
illuminated with a faint light source. As the store time increases, the degree of after-image
becomes higher.
(Note) With an increase in store time, the degree of characteristic pattern noise, white scratch,
etc. of the CCD image sensor will become higher.
1/60.38 (1/50.31: PAL) 1/251.5 (1/253.8: PAL) Lock scan mode
When an image of a subject display screen having a different scan frequency is taken, a bright or
dark horizontal bar appears to roll up or down the screen.
When the shutter speed is Variable, operation is at the speed selected by the Variable setting (see
below). In the Auto CAM mode, the shutter is set to AES.
The shutter speed can be adjusted to where the horizontal bars are minimized in the display.
(Note) If the display screen scanning frequency is less than 60Hz (50Hz PAL), the rolling
horizontal bars cannot be stopped. Not settable in the Auto CAM mode.
16
Lock scan/long-time store mode
Auto electronic shutter mode
Long-time store mode
A clear image can be attained even if the subject is
So, to view continuous images, it is