Monitor Calibration, Photshop Workspace, LCD monitor

Discussion in 'Photoshop Tutorials' started by Gandalf, Jul 7, 2004.

  1. Gandalf

    Gandalf Guest

    I've read somewhere on the web that LCD monitors have a linear gamma
    equation so it is not really necessary to use Adobe Gamma Loader: is
    this true?

    My ATI graphic card has as usual a Color management tab in its
    properties: is it better to use this one and not load Gamma Loader at
    startup, or the contrary? Or should I disable both?

    My digital camera CANON EOS 300D/REBEL can use either sRGB
    (customizable) or AdobeRGB (not customizable): which one is better?
    When shooting in RAW mode it uses AdobeRGB.

    If using sRGB for the camera, should I set sRGB as Photoshop worspace or
    AdobeRGB.

    I'm really lost here: any help would be great :)
     
    Gandalf, Jul 7, 2004
    #1
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  2. Nope. The nonlinearities are different for an LCD. They usually
    try to approximate a CRT gamma curve, but don't get it exactly.
    As I understand it, Adobe RGB is designed as a wide-gamut color space:
    very few colors (in the space of any device) will be out of its
    gamut. sRGB is designed to be closer to many monitors' color spaces,
    so presumably less transformation is needed to display. Which means,
    at least theoretically, less information would be lost to
    quantization.
    I think that depends on what you're doing with the images. If
    you want to print them on you home inkjet printer with little
    processing, I think sRGB is probably best for you.
     
    Stephen H. Westin, Jul 7, 2004
    #2
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  3. If your image comes out of the camera in sRGB, there is no gain in
    converting them to AdobeRGB, no matter what you will do with them
    afterwards. If you do convert them, you'll end up with an image that is
    in AdobeRGB, but still has the gamut of sRGB.
     
    Johan W. Elzenga, Jul 8, 2004
    #3
  4. Gandalf

    Greg Guest

    Later on, when he (Gandalf) becomes more advanced, and perhaps learns how to
    exploit
    the wider gamut of his inkjet printer (assuming the driver supports it),
    converting to a wider
    gamut working space will of course allow him to enhance the images in
    Photoshop, to increase
    the gamut over what it was when it came out of the camera, even if the
    originals are in sRGB when
    they leave the camera. But I agree that at the moment, an sRGB workflow is
    the most appropriate.

    Greg.
     
    Greg, Jul 10, 2004
    #4
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