Hitachi HV-D30 - Manual (Page 50)

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㧦
1㧚AES cannot be combined with a Video type lens.
2㧚When not using an auto iris lens, at the Lens menu, set Lens Type to DC and Iris
Mode to Manual.
+6dB to +24dB
0dB O P EN LIMIT CLO SE LIMIT
to 1/100,000s
AG C +AU T O IR IS+AE S
AG C range AUTO IRIS range
(DC type lens)
AES range
AG C range AUTO IRIS range
(DC type/VIDEO type lens)
AG C +AU T O IR IS
AES range AUTO IRIS range
(DC type lens)
AU T O IR IS +AE S
AG C range AES range
AG C +AE S
 37