Hitachi HV-F31F - Manual (Page 30)

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Shutter Speed[sec] = (801h – nnn ) / OFF_SPEED
Example Fluorescent time = 1/7.5s usable as setting value nnn with HV-F31F.
801h - (30×(1/7.5)) = 7FDh
-AUTO-
Setting value 83000000 h
Auto electronic shutter operates to vary the shutter speed in the range of OFF to 1/100,000 second
in response to light source brightness.
If light is excessive, a suitable level is selected for maintaining a video output. This function is
effective when using microscope or other optical system without an automatic lens iris.
(6) AUTO EXPOSURE
(CSR: F0F0 0804 h)
At auto gain or shutter setting, the sensitivity is automatically adjusted to maintain the proper video
level.
-Manual adjustment-
Setting value 820000xx h xx: 00h to FFh (standard:80 h)
Video level decreases toward 00h and increases toward FFh.
(7)
SATURATION (CSR: F0F0 0814 h)
Color saturation is adjusted.
-Manual adjustment-
Setting value 820000xx h xx: 00h to FFh (standard: 80 h)
Saturation is reduced toward 00h and raised toward FFh.