Lightroom "Auto" and Camera Matching Profiles

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​@JJGroves It NEEDS to be part of the system because technically it's not designed to adjust vibrance and saturation on non native profiles. 

Auto was built using machine learning on a training set of thousands of photos adjusted by a pool of selected professional photographers. Over the years, I haven’t seen any authoritative information on whether that training set included photos with profiles other than Adobe Color. Do you have any authoritative references to that point?

The visual effects of the other Basic sliders also depends on the profile. So if Auto was trained solely on Adobe Color photos, using it on photos with other other profiles will produce outputs for those other sliders that will be just as much “not designed” as for Vibrance and Saturation. You may find in practice that you generally like the Auto settings of those sliders with particular profiles, but they’re no more “designed” than for Vibrance and Saturation, and your preference is just that -- a preference.

Yeah well you know what ***

[Profanity removed by moderator]

Jeffrey’s “Bag-o-Goodies” Lightroom Plugin has a section called Personalized Auto Tone which allows you to customize each adjustment more, less, no change.  I have it set for ‘Auto’ making no change to saturation or vibrancy.

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