I noticed after shooting our vacation over Thanksgiving that some of the files were titled _MG_xxx and others were IMG_xxx and I cannot figure out why. Its driving me batty.
Most of the time I shoot in P or AV. Then I realized that I let my 4 year old daughter shoot a bunch of photos and I put the camera in Program mode (green square) for that. I think those images she shot correspond with the IMG_ notation.
To add to what was already mentioned, green square will always been IMG because it doesn't let you set the color space for that. That one is always sRGB.
Sorry, but that's incorrect. I shoot in raw 100% of the time and IMG_ is still the prefix on all of my files. The others are correct. It is the colorspace the image is shot in.
beewee wrote:
If you're shooting raw though, does it really matter which color space you're in?
The only difference that the color space makes for Raw files is the file name (the topic of this thread).
For JPEG files, the file name change is required by the DCF 2.0 specification. Canon chose to do the same for Raw files. My guess is that they did this so that when you shoot Raw+JPEG the two files have the same basic name, differing only in the extension (CR2 vs. JPG).
stanj wrote:
... except when you're shooting with the 1D(s) mk1, which ignored this standard
The DCF 2.0 specification came out after those cameras did. Obviously, those cameras don't claim to support DCF 2.0, and to say that they "ignored" it is a bit extreme.