Toshiba BG205M-CS Instruction Manual page 78

- Set a ExposureValue of ALC operation
Set the following value to "ALCExposureValue" register. Setting value is Float type.
When set "ALCExposureValue" register, add a correction value for a convergence value.
Final convergence value by setting "ALCExposureValue" register is determined by the following formula.
- Set a tolerance range of ALC operation
Set the following value to "ALCTolerance" register. Setting value is Float type.
Set convergence tolerance level for the ReferenceLuminance. When tolerance level is small, convergence
level become more accurate, but it takes longer time to converge.
- Set a value of feedback fraction of ALC operation
Set the following value to "ALCThrottle" register. Setting value is Float type.
- Set the lock of ALC operation
Set the following value to "ALCLock" register. The setting value is Boolean type.
You can lock ALC operation by using this function.
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ExposureValue
Minimum
Maximum
Final convergence value = ReferenceLuminance x 2
Tolerance
Minimum
Maximum
Throttle
Minimum
Maximum
Value
FALSE (*)
TRUE
Value
-2.00 [eV]
+2.00 [eV]
* initial factory setting = 0.00 [eV]
Value
0.00 [%]
50.00 [%]
* initial factory setting = 1.00 [%]
Value
1.00 [%]
100.00 [%]
* initial factory setting = 75.00 [%]
Activation
inactive
active
* initial factory setting
77 / 80
ExposureValue
D4235067D
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