I'm trying to learn how to use my new 10D. I was using it with my EF 75-300 4-5.6 zoom lens today. I was using Program AE mode.
Almost all my photos came out 1 or 2 stops too dark. When I look at the image information, typical values might be 1/750 x F8. So obviously the lens can be opened up some more. It was a bright sunny day. Most of the photos had some sky visible. But even the sky was too dark.
I know I can use the thumbwheel to adjust the exposure level, but why might the camera be getting it so wrong?


