I just started using an old Rebel XSi to do some photos at work. I really had no familiarity with this camera or utility but figured out some basics. I shot an 18% grey backdrop to set a manual white balance and it worked fine. I retook the backdrop shot a couple times and reset the white balance without issue.
But then for some reason on a reshoot/reset it turned dark. No matter what I try it still comes out too dark and I can't get anything to look right. If I set the exposure level higher it sort of gets to where I need to be but every photo then is kind of washed out. I cannot figure out what changed or why it doesn't work all of a sudden. I didn't change lighting or the camera in any way. Any assistance appreciated.
