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Hi all
I currently shoot in Adobe RGB with my Canon 550D. I currently tend to switch back to sRGB, but that will cause the filenames to be img_0000.jpg instead of _mg_0000.jpg.
Is there a way to retain the underscore in front of the mg?

Thanks
pato

It would be great if you could make this happen!
I've got a EOS 550D and an old/new Sigma 400mm F5,6 APO HSR Macro lens. Open aperture is good, but any other causes an error message.
Attached are some of the debug logs.
https://www.dropbox.com/s/nshz3ncdoh8qf6g/LOG000.rar