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| p.1 #5 · 5D Mark III High ISO Noise Reduction |
I'm trying to figure out exactly how the High ISO Noise Reduction in-camera setting affects the default chrominance and luminance settings in Raw files in Digital Photo Professional. The level of NR seems to increase in proportion to ISO, which seems reasonable. The relative amount of NR is also affected by the camera setting (off, low, standard, high), which also makes sense.
Here is what I dont understand.
When I set the in-camera setting to "off", the chrominance and luminance NR settings in DPP are usually not 0. In fact, I've seen them as high as 7-10 (at high ISOs), even with...Show more →
The option to disable this setting (DISABLED) doesn't mean NR is zero. It means that there is no more enhanced values to the 2 sliders than what Canon determined as appropriate values during their testing. They determined the minimum value needed for the sensor and digic output while still retaining detail.
Even bodies that didn't have this CF setting available have NR values set in-camera, like the 5D classic.
If you use DPP to generate your JPGs and you don't want NR on your files, go to your settings for DPP, and there is a checkbox to turn off using the camera NR values. You will probably go back and set it back though.