First I'm sorry to ask in the same place,,I do not have and answer for your question, but because you are in p25 I like to ask a question too. I Hope you are no mine.
Any one know about exposure compensation in p25? I was looking in c1 to find my exposure compensation and didn't register in my flash card, is give me 0.0 in all the photos.
What camera are you using? When you hover your mouse over the thumbnail of the image in C1, does an exposure compensation value register? If not, it would appear that your camera is not communicating this info to the back. As exposure compensation is a function of the camera, not the back, it should have auto adjusted your exposure even if it does not comunicate this info to the P25. Thus, even if C1 shows no record of such, the exposure should still be adjusted. Of course, as these are Raw images, you still have a large range of exposure tunability. I shoot with a view camera, so these are not options for me.