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D4272607A
ExposureTimeControl
ExposureTime controls the duration where the image sensor is exposed to light.
This camera series provides two kinds of exposure time control mode.
- Manual
: The exposure time is determined by ‘ExposureTime’ register setting value.
- Auto
: The exposure time is adjusted automatically.
● Note
・
Setting of Exposure control
Set to ExposureTimeControl (0x0020 4028) as following:
ExposureTimeControl
Function
0x1: Manua(l*)
Take procedence ExposureTime setting.
0x2: Auto
Auto exposure control
(
AE
)
・
Control of ExposureTime (manual)
Control by IIDC2 address
Sets ExposureTime register (0x0020 403C). The absolution value of ExposureTime is calculated by the
following formula:
ExposureTime (abs) = ExposureTime / 37,500,000 [sec]
Control by Legacy address
The exposure time is set by a rational number. The absolution value of ExposureTime is calculated
by the following formula:
ExposureTime (abs) = Shutter speed numerator / Shutter speed denominator [sec]