Canon 5DSR II
- Aug 16, 2012
Can we just agree on that your test is relevant to the extent that we should not expect the same signal to noise or DR in say a 1000x1000 pixel crop from a 80Mpx as from a 20Mpx sensor but for most purposes, like viewing a full image on a screen or printing it at the same size form both sensors, that it is not relevant.It's all true but as I said we were talking about different 'enlargement ratios'.
I was talking about digital conversions. When you view 1:1, there's no compression and no enlargement of the data from your raw file. Anything other than 1:1 requires additional digital conversion (resampling). Most of the time it's downsampling so that you can fit large size image into the screen or a window on the screen.
Because there's no resampling at 1:1, you see the sensor noise as it is and that was important for my particular test.