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D4211908G
- Set a range of AE operation
Set the following value to “ALCExposureTimeMin”, “ALCExposureTimeMax” register. Setting value is Float
type. AE mode operates at a range of a register value.
You shall set
“ExposureTimeMin” < “ExposureTimeMax”.
If you set “ExposureTimeMax” longer than a frame rate period, a frame rate may be slower than the
register setting.
The range of register setting depends on camera model, and camera operation mode.
AE range
ExposureTimeMin
ExposureTimeMax
Minimum
as same as maximum value of Manual mode
more than ExposureTimeMin
Maximum
less than ExposureTimeMax
as same as minimum value of Manual mode
* initial factory setting: ExposureTimeMin = minimum value, ExposureTimeMax = 1 frame
- Set a range of AGC operation
Set the following value to “ALCGainMin”, “ALCGainMax” register. Setting value is Float type. AGC mode
operates at a range of a register value.
You shall set
“GainMin” < “GainMax”.
AGC range
GainMin
GainMax
Minimum
0.00[dB] (*)
more than GainMin
Maximum
less than GainMax
18.00[dB] (*)
* initial factory setting
● Note
ALC operation at Random Trigger Shutter mode is not guaranteed.