Alc - Hitachi HV-D25 Operation Manual

10) WHITE GATE:White gate ON/OFF
ON: In realtime auto white balance operation or execution of
memory auto white balance, a video signal appearing in
the window on screen is detected for white balancing.
In the MENU mode, the window is presented over the
video signal. For the setting procedure, refer to 'WHITE
GATE Menu of SPECIAL SET Menu' (p. 25).
Even under WHITE GATE:ON condition, the window
disappears when the cursor is moved to another item. In
the DIRECT mode, the window does not appear but white
balance control is conducted by the white gate function.
OFF: A video signal of the entire image is detected for
carrying out white balance control. The window does not appear.

5. ALC

1) OVER RIDE:Auto iris level setting
The auto iris level can be set in a range of -128 to +127. Pressing the R button increases a value of auto iris
level to open the lens iris more. Pressing the L button decreases it to close the lens iris more. For zero (0)
setting, hold down both the L and R button for approx. two seconds.
2) Speed:Set AGC and AES operating rate.
L L
S L O W
Settings are Slow, Standard and Fast.
3) IRIS GATE:Iris gate ON/OFF
ON:A video signal appearing in the window on screen is
detected for AGC and lens/auto electronic shutter
ALC control. In the MENU mode, the window is
presented over the video signal.
procedure, refer to 'IRIS GATE Menu' of 'SPECIAL
SET Menu' (p. 25).
Even under IRIS GATE:ON condition, the window
disappears when the cursor is moved to another item.
In the DIRECT mode, the window does not appear but
ALC control is conducted by the iris gate function.
OFF:A video signal of the entire image is detected for
carrying out ALC control. The window does not appear
R R
STANDARD FAST
For the setting
21
SUB MENU2 (APP-1)
DYNA CHROMA :OFF
CHROMA GAIN :+ 10
CONTRAST :OFF
KNEE :ON
AUTO KNEE :OFF
MASKING :ON
GAMMA :ON
SHAD MODE :COLOR
AUTO SHADING
•¡WHITE GATE :ON
ALC (APP-1)
OVER RIDE : 0
SPEED :STANDARD
IRIS GATE :ON
Window
Window