I have a 30D and I went out a few weeks ago to get some tree leaves. I just got around to getting them into Photoshop.

Half of them are in RAW format, the other half are in JPG. What would cause the camera to change formats? As far as I know, the only way to change it is in the Menu -> Quality setting. Is there a button shortcut that I don't know about that would change it? I know I didn't go in there and change anything.

 

Formats are different for each mode: P, Tv, Av, M... depends how you've set up each in the camera - there's not one format master setting in the menu for all modes.

 

I was shooting in 'M' mode. When I go into the menu and go into Quality, the one that was selected was the 'quarter curve' S. I usually have it on RAW+ 'quarter curve' S.

I normally would have thought that maybe I changed it after a previous shoot. But it seems to have changed in the middle of shoot.

 

Does it switch formats 'intelligently' depending on how much memory you have left?