Hitachi HV-D25 - Manual (Page 50)

37
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:
1 AES cannot be combined with a Video type lens.
2 When not using an auto iris lens, at the Lens menu, set Lens Type to DC and Iris Mode to Manual.