Filter
Top Products
- 14 -
6.1.1 AUTO Mode
In the AUTO mode, the brightness and sensitivity of video image can automatically be
controlled for each of four sensitivity controls according to the brightness of object.
In case of excess of individual sensitivity control ranges due to too bright or too dark object,
the status is automatically switched among four controls as shown in the diagram below to
control lens iris and sensitivity.
If, for example, a very dark object is shot, the camera tries to control the brightness of the
video image by the lens automatic iris control first. However, if sufficient brightness is not
obtained even with the lens iris opened, the electronic multiplication (CMG) control is
automatically activated to control the sensitivity automatically. If sufficient brightness is not
obtained even with the maximum sensitivity of electronic multiplication (CMG) control, the
camera keeps the sensitivity of electronic multiplication (CMG) maximum, and automatically
activates the circuit gain (AGC) control to control the sensitivity automatically. If a sufficient
sensitivity is not yet obtained with the maximum circuit gain control, the camera keeps the
sensitivity of each of electronic multiplication (CMG) circuit and circuit gain (AGC) control
maximum, and finally activates long term exposure control to control the exposure time of
long term exposure automatically.
Electronic multiplication (CMG) control, circuit gain (AGC) control, and long term exposure
(SS LONG) control can set maximum sensitivity and maximum exposure time on the screen
display menu.
(Refer to the item “7.3.1 When Changing Setting of AUTO SENS Mode”)
6.1.2 MANUAL mode
In MANUAL mode, electronic multiplication (CMG) control, circuit gain (AGC) control, and
electronic shutter control are set to their fixed sensitivities on the screen display menu.
(Refer to the item “7.3.2 When Changing Settings of MANUAL mode and MANUAL Shutter
mode”)
As in the case of AUTO mode, only the lens automatic iris control is automatically controlled.