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D4289451A
Final convergence value = Reference Luminance x 2
ALCExposureValue
ALCControl
This section describes ALCControl feature.
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ALCPhotometricAreaSize defines photometric area size for measuring luminance.
100% (H:100% x V:100%)
64% (H:80% x V:80%)
16% (H:40% x V:40%)
ALCPhotometricAreaSize (e.g. 100%, 64%, 16%)
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ALCExposureValue defines a correction value for a convergence value.
Final convergence value is determined by the following formula.