When I open a Nikon .NEF image in ACR, how do I get ACR into CLIPPING MASK MODE while still in ACR? I saw an instructor do this last night, but he did not say HOW he got ACR into the CLIPPING MASK MODE.
There are little icons in the upper corners of the histogram. If you hover over the one in the right-hand corner it will show the highlight clipping, left-hand corner the shadow clipping. If you want the clipping to be shown all the time, just click on those icons.