No.16S058-01 3.3.2. The function descriptions for HD133Ctrl software A. DSP: Shutter/Gain The shutter and gain settings are changeable in this window. 1) ALC The ALC (Auto light control) mode is selectable from OFF and ON. a) OFF (Fixed exposure / Fixed gain) The exposure time is adjustable by the exposure time setting. The gain is adjustable by the gain value. b) ON (Exposure control / Gain control) The exposure control method is selected exposure control method at the exposure control. The gain control method is the selected gain control method at the gain control. 2) ALC target level The ALC target level is adjustable.
The ALC target level is valid when the auto exposure control or the AGC control selecting while set at the ALC only. 3) ALC weight area The ALC control weight is adjustable. The ALC control weight is valid when the auto exposure control or the AGC control selecting while set at the ALC only. 4) ALC integration frame number Please set the number of the frames use for the brightness average at the ALC control. 5) ALC rapid control frame number Please set the number of the frames use for the ALC control at the power on the camera or the DSP preset is changed. 27/49 STC-HD133 Series (STC-HD133DV / STC-HD133SDI) / STC-HD93 Series (STC-HD93DV / STC-HD93SDI) Users guide