Almost a follow up to an earlier thread.
I am soft proofing in LR4. I have chosen a monochrome image, and there are NO out of gamut warnings, either on the monitor or the printer.
However, if I toggle between the Perceptual and Relative rendering intents, there is a distinct change in the appearance of the proof image (basically, perceptual appears brighter and a bit more contrasty).
I thought I was beginning to understand this stuff, and I thought the different renderings only affected things if there are out-of-gamut colours, but obviously wrong.
Any help gratefully received.