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color space question

Discussion

5 replies
Posted by Rosemarie Arbur on September 28, 2009 at 8:22 PM
I'd like to know the difference between Nikon's RGB and the standard:
I.e., between NKsRGB.icm and sRGB.icm?

If I use Nikon software for raw conversion, my Paint Shop Pro tells me that there's a color-space mismatch and that it has converted "Nikon sRGB 4.0.0.3001 to sRGB Color Space Profile.icm"; I can't see the difference, myself, but I don't want to be changing something without knowing what I'm doing. (I mistrust PSP's color management, and I'm almost afraid to give PSP a color space profile other than sRGB lest it mess things up--my anti-Corel bias showing again.)

I'll greatly appreciate your help.
Posted by John Mumaw on September 28, 2009 at 8:36 PM
I had these choices when I used a Nikon film scanner, and found that 'Nikon sRGB' and 'Nikon AdobeRGB' were pretty much exactly the same as their non-Nikon counterparts. That's why you don't see any difference.
Still a good idea to convert away from Nikon tagged images just so others won't get a 'profile warning' when opening the image in PS, etc.
Posted by Rosemarie Arbur on September 28, 2009 at 10:35 PM
Thanks, John. I'll just let Paint Shop Pro automatically convert to sRGB and click the "don't ask again" button.

Thanks also for your various positive comments on Feisol tripods over the past year. I just got one, and it's amazingly light and really stable, too.
Posted by John Mumaw on September 28, 2009 at 10:49 PM
You're welcome, Rosemarie.
My Feisol tripod is still going strong with nary a complaint.
This photography stuff is expensive enough as is. It's awfully nice to find a great bargain these days.
Posted by PHEROLD on September 29, 2009 at 1:10 PM
Rosemarie,
If you want, you can email me with your NKsRGB profile and I'll compare it to sRGB in our software here and report back some actual numbers.

-Pat Herold
www.chromix.com
Posted by Helio Cristovao on September 30, 2009 at 11:35 AM
Hi.
NKsRGB profile and I'll compare it to sRGB in our software here and report back some actual numbers.


I´m curious to know about some results, I also work with Nikon color spaces vs. standard sRGB or aRGB. When Converting between sRGB or Nikon sRGB (4.0.0.3001 as mentioned) profiles I don´t notice any difference. But in some particular images, the conversion from AdobeRGB (preparing to web posting) to sRGB may cause significant color change. I experienced that in this image I submitted for critique, for example:

Link here

I explain it in the post, but I would like to learn more about this, and how to preserve the "look" of the original file, is it possible, when switching the color space and when such differences happen?