Dan, "exposure" and "dynamic range" are well-defined parameters. I am using these as defined.
Regarding "Increasing exposure does not increase the potential recorded dynamic range", this is incorrect. In fact, there is a simple relationship between the two. An added stop of light is expected to increase the dynamic range by close to a stop. For example, the measured photographic dynamic range of the GFX100S II changes from 11.4 at ISO200 to 12.3 at ISO100. For another pair of values: PDR is 10.0 and 9.0 at ISO 1000 and 2000, respectively.
DR200 and DR400 don't imply an extended dynamic range. These settings are intended to prevent clipping of the highlights. This can never increase or expand the dynamic range.
Dan, "exposure" and "dynamic range" are well-defined parameters. I am using these as defined.
Regarding "Increasing exposure does not increase the potential recorded dynamic range", this is incorrect. In fact, there is a simple relationship between the two. An added stop of light is expected to increase the dynamic range approximately by close to a stop. For example, the measured photographic dynamic range of the GFX100S II changes from 11.4 at ISO200 to 12.3 at ISO100. This is an oversimplified interpretation, of course, because the shot noise also changes with increased exposure as a square root of the signal.
DR200 and DR400 don't imply an extended dynamic range. These settings are intended to prevent clipping of the highlights. This can never increase or expand the dynamic range.
Jan 31, 2026 at 12:13 AM
Previous versions of ruthenium's message #16977477 « DR100% vs 200/400% »
