sRGB vs. sRGB IEC61966-2.1

Victor

Thanks for the information concerning Adobe RGB 1998.

The difference between sRGB and sRGB IEC61966-2.1 is still a mystery. In fact the whole subject of color - color space, color management, ICC profiles and so on, is one of the toughest problems in digital photography. For example images in iPhoto look red. Nobody knows why.

I'm using sRGB because it's working for me, not because I think it's better then Adobe RGB. I have my PowerBook display and Photoshop set to sRGB IEC61966-2.1.

I would need to work out why Adobe RGB isn't getting me the results I'm looking for.





PowerBook G4 17 inch, PowerBook G4 12 inch Mac OS X (10.4.6) Tiger/Panther

Most people get confused.
Worse, most are misinformed.

sRGB is a display/monitor profile.

Adobe RGB is a printer profile.

It is that simple!

Can you use one over the other for either monitor or printer - SURE! (albeit - profile reguired maybe printer dependent). Unless maybe you're a purist! 🙂

For more precise information, I would strongly suggest those interested in color profiling and color management to vist

http://www.dpreview.com/

And check out the Printers and Printing forum or do a search on Color Management. You will have days of reading fun and learn something too!

AJM

I've seen places where I'm supposed to "embed" the
profile in my image for Costco, etc. and others where
I'm not. By "embed" does one actually mean "apply?"
Because using Aperture, I just took a RAW image,
exported it to my desktop using a Costco printer
profile, and viewing the image shows a "ColorSpace"
of "RGB."

No they are different.
PS allows for either.
When you embed the information, that information becomes a permenant part of the file information and is available at the time of "save as".

BUT

To embed, you must first apply!
So you can apply a profile to your file; print or whatever and then close the file without saving or when saving choose to ignore or embed the profile.

AJM

Eduardo

Thanks for the information. I should have been a little more specific.

When I was using Photoshop in Mac OS X Panther there was a red color cast. This was resolved by switching the OS Display Preferences from color LCD to sRGB IEC61966-2.1

This didn't change the color of the screen, only the cast in Photoshop, so I left the setting there. I don't know why this worked.

This approach however did not work for a color cast in Photoshop installed on Tiger. Switching Display Preferences here changed the color of the whole screen.

I tried to get this resolved through Apple tech support. They had me archive and install Tiger and reinstall Photoshop, but same color cast was still there in both Photoshop and Adobe Bridge. Because of this I'm using Panther.

I'm going to also try the Adobe forum and see what I can find there.

http://www.adobeforums.com/

Photoscene



PowerBook G4 17 inch, PowerBook G4 12 inch Mac OS X (10.4.6) Tiger/Panther

By the way, as far as I can verify, the colorspace you set on the camera really only matters when shooting JPEG. A RAW file isnt at the point where a colourspace means anything to it, it still has to be processed and then have a colourspace set against it.

I havent tested what the situation is with regards to what happens with regards to profiles assigned during ingesting to your managment app though. I THINK Nikon Capture applies a colourspace to the RAW file as per its set in the camera, but not sure about Aperture.

Hello, Photoscene 🙂

Quote: "The difference between sRGB and sRGB IEC61966-2.1 is still a mystery."

Well, maybe if someone in here would stay on topic we would all know! —


OK, sorry for the deviation. 😝

I'll start a sRGB vs. Adobe RGB thread

love & peace,
victor 🙂