Copy link to clipboard
Copied
Want to make image in ACR look like image in PS. Have latest versions of each one. But an image in one, when sent to the other, has a different luminousity -- and maybe different colors. Would appreciate an easy to follow method for accompliching this. Many thanks. Richard
Copy link to clipboard
Copied
That's either a defective monitor profile or a GPU driver bug (assuming you have HDR off in ACR).
Post a side by side screenshot.
Which calibrator are you using? What monitor model?
Copy link to clipboard
Copied
Copy link to clipboard
Copied
Actually there is no significant difference in tonality or color. There is a very very slight difference in the deepest shadow values - not so much that you notice it, just enough to slightly alter the shape of the histogram. But I think there's a different explanation for that:
What I notice here is that they are at different zoom levels. One screenshot is a little larger than the other. That means the on-screen resampling is a little different, and that affects sharpness and noise.
Sharpness and noise can sometimes affect perception of tonality to various degrees.
View at 100% in both and check again. 100% is not about size - it means one image pixel is represented by exactly one physical screen pixel. Screen resampling algorithms are different between PS and ACR, but viewing at 100% takes that out of the equation.
I should probably add that I vewed this on an Eizo Coloredge monitor, and stacked the two images after having matched the size, so I could quickly flip. I would have noticed any visible differences.
Copy link to clipboard
Copied
Hi D Fosse,
Thank you for your comprehensive reply. The example I sent seems not to be very instructive. I'm going to look for a better one to send you. One question: should I be looking at both the images at 100? Richard
Copy link to clipboard
Copied
Yes, 100% is always best, so make the image small enough to fit on screen. Although with a noise-free image it shouldn't matter much.
Oh, and to be clear - make the screenshots from each individual application, but open and compare them in Photoshop. This is where you do the assign profile > convert.
You can use the same procedure for raw files. Just open them into Adobe RGB in Photoshop.
Copy link to clipboard
Copied
Ignore the last reply. I'm replying to two very similar threads at the same time, and this post was intended for the other thread 😉
The response in this thread is yes, view at 100%!