So, I have a fairly good grasp on the zone system. I understand placing the shadows in zone 2 or 3 and developing for the highlights. Normal developing is at a 5 zone spread yadda yadda yadda. But, I was taking a picture yesterday of my very blonde daughter in front of a whitish area and realized that there were no shadows, or anything dark for that matter! How do I apply the zone system when the zones are basically middle gray and up? Thanks for the advice.