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DPChallenge Forums >> Photography Discussion >> Colour space selection
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09/06/2004 06:45:36 PM · #1
The 10D, and doubtless many others, offers a choice of Adobe RGB and sRGB color space selection.

I use Photoshop for processing everything I take.

What is the best colour space selection to use? Is it the Adobe one simply as I am going then be working in PS?
09/06/2004 06:50:51 PM · #2
Lots of opinions on this. I shoot the Adobe RGB in camera and as the working space on PS CS. My reason...larger gamut. I could care less about the sRGB being "the standard." I want to capture the most color, contrast, light, highest bit depth, etc. I can in my RAW negative. That "negative" I will have as long as I can keep up with technology and moving and archiving it. All the rest of the technology will catch up and surpass it soon enough. But when it does catch up and there are 16 bit home printers, monitors, etc. that I can afford, I will have purdy pictures to look at on it, with colors I SAW at the time.
09/06/2004 08:28:38 PM · #3
I also shoot Adobe RGB and convert to sRGB when saving for the web. I am hoping my new book on Photoshop CS RAW conversion will tell me this, but does it matter what gamut you shoot in when shooting raw?
09/06/2004 09:09:17 PM · #4
Originally posted by VisiBlanco:

I am hoping my new book on Photoshop CS RAW conversion will tell me this, but does it matter what gamut you shoot in when shooting raw?


Good question with the RAW there, I have no idea.

If your books gives any answers in these areas please share them :)
09/06/2004 11:33:39 PM · #5
No, it doesn't matter. The RAW data is linear and in the device's color space. You can convert to any number of color spaces (depending on which conversion tool you use). Adobe Camera Raw allows you to convert to the super-wide space ProPhotoRGB, for example.

Editing in sRGB is not altogether advisable, but necessary at the best of times. If you have an 8-bit image in Adobe RGB already, then you have more leeway, but it's not a wide open field. Wider spaces in small bit depths lead to image degradation (banding for example) depending on how much and what kind of editing you do. Adobe RGB is better suited for 16-bit editing.

In other words, to keep it simple, do it all in Adobe RGB and convert to sRGB as appropriate (for DPC/DPCPrints).
09/07/2004 01:36:33 AM · #6
Originally posted by dwoolridge:

In other words, to keep it simple, do it all in Adobe RGB and convert to sRGB as appropriate (for DPC/DPCPrints).


Can you explain that to me please.

When I have put things up in DPC Prints I simply make a JPG, I don't convert to sRGB.

Should I? What does it mean? etc etc etc (feeling really dumb here)
09/07/2004 01:43:24 AM · #7
It's been a while since I've used photoshop, but I beleive there is a convert to profile in the image?? menu.

Convert it, then when you go to save it, make sure you check the sRGB box.
09/07/2004 02:25:37 AM · #8
Originally posted by Natator:

Should I? What does it mean? etc etc etc (feeling really dumb here)


Yes, you should/must if your image is not already in sRGB. You do not have to embed the profile with the image you save (it's ignored/discarded anyway).

I can't really answer your questions without knowing more detail about your workflow. Feel free to PM me if you want detailed information.
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