Apologies, I've found similar threads to this, it seems to be a common problem but I can't find a solution to mine!
I shoot in RAW on a Nikon D5100 - this gives me RAW files between 15 - 18mb. On the D5100, if you shoot in RAW, you cannot choose the "size" of the image - i've looked to increase resolution but I can't find any other settings on the camera (and I assumed RAW files between 15-18mb would be big enough)
When I try process in CS5 and save as JPEG, some of the images just aren't big enough. I've tried to blow up the image and this doesn't always increase the file size sufficiently. This is when I have quality up full to 12. I usually edit them in camera RAW then go to CS5. If I open an image in CS5 without editing or resizing, the file size in the bottom left corner shows around 10 mb. Sometimes a resize will help with these pictures, but not all of them - why am I struggling so much with file size?! I've been banging my head against a brick wall for a while now, I'd really appreciate a little help, is it just something stupid I'm doing here?! Thanks,