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| What drives high ISO performance? |
A general rule is that the larger the sensor, the better high ISO performance you will get. Thus, FF cameras generally have better high ISO performance than crop sensor cameras. However besides sensor size, what drives high ISO performance? Is it changes in the sensor hardware, software algorithms applies, or the processor chip?
I believe it's advancements in the sensor itself since I believe software is taken out of the equation if you shoot in raw.
To make it canon related, I'm just trying to figure out why Nikon performs better than Canon in high ISO (or so they say).