ALC

In combination of GAIN:AGC, SHUTTER:AES and AUTO IRIS, the following four kinds of ALC (auto level control) can be performed. This feature ensures stable video signal output according to a wide-range change in illumination.

Note

1AES cannot be combined with a Video type lens.

2When not using an auto iris lens, at the Lens menu, set Lens Type to DC and Iris Mode to Manual.

0dB

OPEN LIMIT

CLOSE LIMIT

+6dB to +24dB

 

to 1/100,000s

AGC+AUTO IRIS+AES

AGC+AUTO IRIS

AGC range

AUTO IRIS range

AES range

 

(DC type lens)

 

 

 

 

 

 

 

 

 

AGC range

AUTO IRIS range

 

(DC type/VIDEO type lens)

AUTO IRIS+AES

AUTO IRIS range

AES range

(DC type lens)

 

AGC+AES

AGC range

AES range



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Hitachi HV-D30 operation manual Alc