I'm unclear about setting default values for the Noise Reduction sliders in ACR for PV2010 and PV2012.
I have the following selected
x Make defaults specific to camera serial number
x Make defaults specific to camera ISO setting
With the above, the defaults can be different for my Canon 5d2 and T3i. Also, they can be different for each ISO for each camera. OK so far?
However, the ACR as-installed defaults for PV2010 and PV2012 seems to use the same NR slider values, regardless of ISO. IIRC, Luminance is 0 / OFF / OFF, and Color is 25 / 50. Does that mean the same NR parameters are applied to an image shot at ISO 100 as ISO 6400? Is Luminance NR always OFF by default?
I've tweaked the default NR slider values to have increasing values for Luminance, Luminance Contrast, and Color as ISO increases. I've left Luminance Detail and Color Detail sliders at the default of 50.
For example, for my 5d2, here are some NR default settings for several ISO's:
50 = 5,50,5,5,50
100 = 10,50,10,10,50
125 = 13,50,13,13,50
200 = 20,50,20,20,50
400 = 30,50,30,30,50
800 = 40,50,40,40,50
1600 = 50,50,50,50,50
3200 = 60,50,60,60,50
6400 = 70,50,70,70,50
12800 = 80,50,80,80,50
25600 = 90,50,90,90,50
etc, with intermediate values for in-between ISO's.
I am ignorant whether the above is appropriate, or flawed. My uninformed speculation is that I'm applying too much default NR to higher ISO images.
I realize that the appropriate NR slider values will differ, depending on the specific image. However, I'd like to start with appropriate defaults, and go from there.
My understanding is the same applies to Lightroom. Or not?