In going through the CR10_ToneCurves movie, I came across a dialog between Jeff and Michael which I found confusing.
Micheal (13:40): When does preview show you everything you have done in the various panels?
Jeff: ? Never
Micheal (14:00): Preview is only relevant to the panel that you are in at the moment?
It seems to me that preview in the basic panel should also reflect changes made in the other panels so that we know what the final adjustments have done. To demonstrate the behavior of the previews, I looked at an image of an over-exposed step wedge. Here is the image with ACR defaults viewed from the basic panel:
And here is the image with AutoCorrect with preview on as viewed in the basic panel:
Now, going to the point curve panel with preview on, the preview is showing the change made in the basic panel with autocorrect.
Now I apply a point curve with the preview on:
And with the preview off:
And going back to the basic panel with preview on. The preview is showing the effect of the point curve in addition to the changes made in the basic panel. While I have not made changes in the other panels, the basic preview is at least showing the change made in the curve panel.
Comments and clarifications are welcome.