because I'm still new oh photography, I have few question in my next exam, and I'm not sure for the answer... the question are: 1. What effect does shutter control has on the image other than exposure? 2. What effect does using a slow shutter speed with flash have on the final image? What advantage is there in this technique? 3. What is the difference between matrix readig and sopt meter reading? 4. Difference between reflected light and incident light? 5. Two characteristics of overexposed film? 6. Two charactericstics of underexposed film? Thank you for any answer and big kisses from Croatia!!