Alc (Auto Level Control) - Hitachi HV-D30 Operation Manual
3-ccd color camera
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Also See for HV-D30:
- Brochure & specs (5 pages) ,
- Setup manual (3 pages) ,
- Service manual (60 pages)
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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.
+6dB to +24dB
AG C +AU T O IR IS+AES
AG C +AU T O IR IS
AU T O IR IS+AES
AG C +AES
0dB
OPEN LIMIT
AG C range
AUTO IRIS range
(DC type lens)
AG C range
AUTO IRIS range
(DC type/VIDEO type lens)
AUTO IRIS range
(DC type lens)
AG C range
CLO SE LIMIT
AES range
to 1/100,000s
AES range
AES range
37
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