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Old 30-08-2008, 00:04   #1 (permalink)
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IMG_xxxx / _MG_xxxx

I've been looking for the answer and can't it, so here I am asking the font of knowledge that is Pixalo

Canon 20D: file names (.jpg and cr2) are all "IMG_xxxx.xxx" regardless of mode.

Canon 40D: file names (.jpg and .cr2) are all "IMG_xxxx.xxx" in the 'basic/auto' modes, but are "_MG_xxxx.xxx" in manual modes.

Um. Any ideas why?
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Old 30-08-2008, 01:51   #2 (permalink)
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Re: IMG_xxxx / _MG_xxxx

You used a different color mode or you did in camera editing, But most likely you used a different color mode check the images and you will see they are in different color profiles.
I think if you use the Adobe color space it will name them _MG_XXXXXX
I think it has to do with the "_" at the start of pictures shot in Adobe 1998 that way it complies with DCF and EXIF data standards.

try changing to Adobe 1998 in the 20D I think it should do the same. (not sure on this one I'm a Nikonian)

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Last edited by j sotelo; 30-08-2008 at 02:02.
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Old 30-08-2008, 10:39   #3 (permalink)
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Re: IMG_xxxx / _MG_xxxx

as j sotelo says, it is to do with the colour space, if you use Adobe rgb the camera will name the file "_mg_12345", if you set the camera to use the srgb, it will name the files "img_12345".
I use srgb myself, because the underscore before the filename confused the gallery prog. I was using.

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Old 30-08-2008, 10:54   #4 (permalink)
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Re: IMG_xxxx / _MG_xxxx

And remember that, if you shoot RAW, the colorspace setting doesn't matter.
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Old 30-08-2008, 17:41   #5 (permalink)
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Re: IMG_xxxx / _MG_xxxx

well i shoot raw on both the 400D and the 30D and the 400D images are always IMG ( and the colour space is set the same as the 30D even tho i know it doesnt apply it in raw) and the 30 D is always _IMG_

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Old 30-08-2008, 17:49   #6 (permalink)
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Re: IMG_xxxx / _MG_xxxx

Yeah the D300 does this as well, I guess to allow photographers to easily identify images shot in different colourspaces, it changes the prefix. It should be somewhere in the menu, and possibly editable (it is on the D300)
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Old 30-08-2008, 23:05   #7 (permalink)
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Re: IMG_xxxx / _MG_xxxx

Thanks all

Sotelo - when I read your post first thing this morning my head did a small boggle but you helped me find what to look for in the manual and I'm all sorted! Thank you

Colour space set to Adobe RGB produces an "_MG_" prefix.
Colour space set to sRGB results in "IMG_" prefix
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Old 30-08-2008, 23:10   #8 (permalink)
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Re: IMG_xxxx / _MG_xxxx

Glad it's solved
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Old 01-09-2008, 11:45   #9 (permalink)
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Re: IMG_xxxx / _MG_xxxx

Or you could get a 1D MKIIn or newer and set your own prefix
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Old 01-09-2008, 13:31   #10 (permalink)
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Re: IMG_xxxx / _MG_xxxx

Quote:
Originally Posted by M1ke A View Post
Or you could get a 1D MKIIn or newer and set your own prefix
But the file name will still start with an underscore if the colour space is Adobe RGB.
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Old 01-09-2008, 15:09   #11 (permalink)
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Re: IMG_xxxx / _MG_xxxx

Quote:
Originally Posted by john crossley View Post
But the file name will still start with an underscore if the colour space is Adobe RGB.
Good point. It was nearly two years ago that I changed the settings.
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