I have tried multiple settings in every mode (p, av, tv, m and auto) with the Canon 28-55mm lens, and the pictures are way too bright or way too dark. I tried every ISO possible, adjusted the shutter speed and aperture, and in every setting mode the picture is way too bright, too dark, or the color is way off. How do I know if there's something wrong with my camera or if it's the lens? I'm not getting any error messages. I'm beyond frustrated. I have tried to change the exposure and I have tried to meter it before the shot, but still the same thing.