hello every one. i have doubt about take exposure. when we are going to mirror reflection shot, suppose frame contain artist (in mirror)then there is some compostion, in the case 1.wher should i take the reading.and meter facing towards to where.2. i need framing place should be dull ,same time the mirror reflection ,meansthat artist face bright.in this way what i have to do? in lighting,exposure. then i have more doubt about clare.when we seeing through view finder,any accurate tips there for find out clare falling on lens.