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Color Space: Uncalibrated

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Canon350etc...  Pro User  says:

Hi Groupees,

I have noticed recently that my EXIF data shows my Colour Space as 'Uncallibrated'. Does that mean my camera sensor, CS2 or...??
I have always needed to callibrate the monitor I use with a test image I did a while back, am I just working round a problem with my camera?

Any feedback is much appreciated.

Cheers,

Sean
Originally posted at 1:17AM, 1 February 2007 PDT (permalink)
Canon350etc... edited this topic 65 months ago.

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floyduk is a group administrator floyduk  Pro User  says:

Oooh that's interesting. I don't think I've heard of "uncalibrated" before. What colour space do you have your camera set to? Personally I use "Adobe RGB" in my camera and then "ProPhoto RGB" once my images get to Photoshop.

Just quickly regarding your montior calibration - you say you calibrate from an image? If you're at all serious about your photography I'd suggest looking into one of the many moitor calibration tools. They give great results. I use a Spyder 2 Pro myself.

John
Posted 65 months ago. (permalink)

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Canon350etc...  Pro User  says:

Thanks for the pointer John,
I just raided the piggybank for a flash (speedlite 430EX), the spyder goes on the list.

I looked at my RAW image which tells me the camera is set to sRGB IEC61966-2.1. When I convert using Camera Raw, the colourspace is set to sRGB (for my sins) and finally, In CS2 My colour management policys are all set to preserve embedded profiles .

After playing for a while I found that unless I specifically set it (e.g. EDIT->Assign profile->sRGB), the jpeg image data does not contain the color space of the image?

At least I now know how to ensure it is set correctly.

Thanks

Sean
Posted 65 months ago. (permalink)

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tbrick says:

sRGB is intended as a common color space for the creation of images for viewing on the Internet. It would be better to use Adobe RGB.
Posted 65 months ago. (permalink)

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floyduk is a group administrator floyduk  Pro User  says:

Yeah sRGB represents the average gamut of a typical CRT monitor circa 1980. The idea was to come up with a colour space that would look good for a wide general audience. It's one of the smaller gamuts, however, so if you store all your images using it then you'll be losing some colours. And of course monitors have changed a lot since back then (not always for the better actually).

For 8-bit screen work I'd stick with Adobe RGB and if you're using 16-bit images then ProPhoto RGB is good.
Originally posted 65 months ago. (permalink)
floyduk (a group admin) edited this topic 65 months ago.

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