From Newsgroup: uk.comp.sys.mac

I'm puzzled by Colour profiles - any advice?

I have a 2019 27" Retina iMac, which I started using as my main machine a few months ago. It has Sequoia 15.7.3.

I take a lot of photos (i.e. amateur snaps) on various cameras, and naturally
I also have many, many photos coming in from friends. Not to mention the
photos one sees in the various media avalable.

I began to notice some dissatisfaction with colour balance on some photos, so wondered if the Colour Calibration could be improved -- I remember mucking about with that years and years ago, when I was creating DTP publications, as well as viewing home-made photographs.

When I looked at Colour Profile, under Display in Settings, I was surprised to find over 30 listed, some of them with the same name, although, for example, the two marked "iMac" produce different colour balance. (These duplicates were probably imported with the system migrated from my older Mac. I can't see a
way of telling which is which.)

Any suggestions on which I should choose? For now, I've settled on the
"warmer" version of "iMac", but (leaving aside all those marked with familiar big names, such as Adobe, Epson, Prophoto, sRGB, RGB), I have:
iMac,
iMac,
New iMac Calibrated,
New iMac Calibrated D65
etc etc etc.

If I open a 'benchmark' image in the background I see its colours change
subtly with each new profile I choose. I think "That one's good", and select that ... then later on it makes a mess of a different image.

Best to leave it all alone, by the look of things, but I thought I'd ask here for advice on which one to settle on.

Cheers
Another John
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From Newsgroup: uk.comp.sys.mac

On 10/01/2026 14:04, Another John asked for advice.

https://chatgpt.com/share/69626f6e-53a0-8013-96e3-c7da31856618

I hope he takes it!
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From Newsgroup: uk.comp.sys.mac

In article <m%s8R.46429$WMo5.6578@usenetxs.com>,
Another John <lalaw44@hotmail.com> wrote:

New iMac Calibrated,
New iMac Calibrated D65

If I recall correctly, ones with "Calibrated" are the result of you
having run the calibration tool.

-- Richard
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From Newsgroup: uk.comp.sys.mac

On 10 Jan 2026 at 15:31:21 GMT, "Richard Tobin" <Richard Tobin> wrote:

In article <m%s8R.46429$WMo5.6578@usenetxs.com>,
Another John <lalaw44@hotmail.com> wrote:

New iMac Calibrated,
New iMac Calibrated D65

If I recall correctly, ones with "Calibrated" are the result of you
having run the calibration tool.

-- Richard

Thanks Richard - that makes sense: as I said, I remembered mucking about with calibrating profiles quite some years ago, but abandoned it as hopeless work for an amateur. And those that I made will have been imported, every time I migrated to a new Mac.

Looks like I should delve into the appopriate pat of the System Library to
fine th folder, and do some editing :-/

AJ
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From Newsgroup: uk.comp.sys.mac

On 11 Jan 2026 at 18:22:20 GMT, "Another John" <lalaw44@hotmail.com> wrote:

And those that I made will have been imported, every time I
migrated to a new Mac.

I would avoid choosing one migrated from a previous Mac, as it can't possibly be suitable for your current display.

Instead just run the optical calibration tool that's built into the Displays prefs panel. I always found that to work quite well.
--
Martin
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