ruthenium wrote:Should this be understood as implying that the dual output gain is active only in the 100 - 800 ISO range? Is this just a coincidence that the two DR curves, with the ES and MS shutters, merge at 1000 ISO?
If the first amplifier is based on ISO 100 and second one 800, then yes, the DGO will only be meaningful between those. Think it as an interpolation. Beyond 800, even if DGO is used, the weight on the first will be 0 and the weight on the second will be 1.
I also do wonder why ES can't use this. Is it because there is no shutter screen during ES, so that the values read during the second read will be even higher? Why can't they read once and send to both amplifier at the same time? Maybe they have some data path limitations that they can resolve in future.
Dec 12, 2025 at 11:07 AM
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