No.16S058-01 5) Exposure control The exposure control method is selectable from the fixed exposure and the auto exposure. This control method is valid when “ON” selecting at ALC only. a) Fixed exposure The exposure time is adjustable by the exposure time setting. b) AEE The exposure time adjusts automatically to meet the ALC target level. Please change the ALC target level and the auto exposure control settings. Auto exposure and AGC operation: 6) Exposure time The fixed exposure time is adjustable. 7) AEE tolerance When the difference between the current brightness and the ALC target level becomes smaller than this setting, the auto exposure control stops.
8) AEE threshold When the difference between the current brightness and the ALC target level becomes greater than “AEE threshold + AEE tolerance”, the auto exposure control starts. 9) AEE speed Please set the maximum amount of the exposure time change for the auto exposure control. When sets “0”, there is no limit. 10) Gain control The gain control method is selectable from the fixed gain and the AGC. This control method is valid when “ON” selecting at ALC only. a) Fixed gain The fixed gain is adjustable by the gain value setting. b) AGC The gain adjusts automatically to meet the ALC target level when the image is the dark. Please change the ALC target level and the AGC control settings.
11) AGC tolerance When the difference between the current brightness and the ALC target level becomes smaller than this setting, the AGC gain control stops. 28/49 STC-HD133 Series (STC-HD133DV / STC-HD133SDI) / STC-HD93 Series (STC-HD93DV / STC-HD93SDI) Users guide Object Exposure time Gain (1) Bright Minimum Minimum (2) Change (3) Middle Change (4) Change Middle (5) Maximum Change (6) Dark Maximum