Does soft-proofing work without looking to the output profile?

I’m having a further go at sorting the confusion you mention @mikesan.

  1. Following @gaaned92 's post, I thought you were going to try the latest RT. What happened? Are you still not able to set an RGB print profile as the output profile?
  2. [quote=“mikesan, post:19, topic:3280”]
    when I place several color pickers on various patches [/quote]
    and so on. Surely what you’re observing by eye is correct, i.e. no change. An output profile defines what system of numbers will be used to represent your image, but it does not alter the actual colour that is represented. So an image output as 2 files, sRGB and ProPhoto, will contain different numbers, but viewing them (with profile-aware software) will give the same picture.
  3. I was just experimenting with lockable colour picker, since numbers are changing for @mikesan but not for @T70. In general preferences, you can set whether the histogram shows working profile values or not. If ticked, I find picker values are independent of output profile, which makes perfect sense to me. If unticked, I find the values change dep. on output profile. Also seems very reasonable to me. So @mikesan, I think most of what you are observing is ok!
  4. I think Rawpedia is a little misleading when it says “If you want to adjust an image for printing and you have an ICC profile for your printer-paper combination you could set that as your output profile, enable “Black point compensation” in Preferences so that the blackest black in your image will match the blackest black your printer-paper combination is capable of reproducing, then enable soft-proofing. You will see what your image will look like if you print it.” It seems to me mentioning you could set the print profile as output is not relevant - RT will show what the printed image will look like just dependent on Preferences.
  5. re. [quote=“mikesan, post:10, topic:3280”]
    Soft-proofing, as I understand it, is an editing process that allows one to produce a print matching (as closely as possible) the image seen on your monitor.
    [/quote]
    I agree with this up to a point, and sure colour management includes seeing the same colours on screen as are printed. But remember the gamuts of screens and printers are rather different, so sometimes the whole point of soft proofing will be to sort out how you want your very punchy photo blazing out of your wide gamut monitor to appear when it comes out of your relatively dull printer. That is, you don’t want screen and print to match, something has to give, and you can choose what that will be.