Black and White Photography

1.  the film, the lens, and the body itself

2. manual single-lens-reflex

3. opens the lens

4. length of exposure

5. gears, switches, and springs

6. low film, because there is light all around the camera

7. I     reducing agent - ions to metals

    II   developing film with water

    III remove silver-halide

    IV wash film with water

8. enlarger

9. developed silver