Images in Photoshop are different compared to Lightroom and ACR

[jon40869]

Since a recent update, the last week or so I think, when exporting from LR to PS the image is not the same. ACR and LR look the same but PS tends to look warmer among other things. Both LR and PS are set to use the ProPhoto RGB colour space. The pics are just cropped screen prints.ACR which looks the same as LightroomPhotoshop

[D Fosse]

That's a defective monitor profile. That often affects applications differently, one may choke while another can work with it.

What you should do is use a calibrator to make a new profile, but if you don't have one, you can use sRGB IEC61966-2.1 for now (Adobe RGB if your monitor is wide gamut).

Relaunch all applications when done, they need to load the new profile at startup.

PS - there is no need for color settings to match between applications, and there is no particular reason to use ProPhoto just because it's the default in Lightroom. It is in any case not the same as the linear TRC color space used internally in Lr/ACR.

[jon40869]

Thank you very much D_Fosse.

I suspect that f.lux is to blame, I uninstalled it and re-ran my monitor calibration with the ColorMunki and LR and PS match up now.

[D Fosse]

I had to google f.lux. In two words: Plague. Avoid.

This stuff renders the monitor profile void and invalid just by being there. The whole point of a monitor profile is that it describes the monitor's actual and current response. It's a map. It has to describe the actual terrain. Change the monitor's behavior, and the profile no longer applies. It's out the window and you have to make a new one.