second set of questions

1. an optical element (the lens), a chemical element (the film) and a mechanical element (the camera body itself)

2. manual single-lens-reflex. this is a camera where the photographer sees exactly the same image that is exposed to the film and can adjust everything by turning dials and clicking buttons.

3. controls the amount of light that reaches a cameras sensor.

4. it controls how fast or slow the light comes through and hits the sensor.The mirror in an SLR camera directs the real image to the viewfinder. When you hit the shutter button, the mirror flips up so the real image is projected onto the film.

5. balance film speed, aperture size and shutter speed

6. low because there is already a lot of natural light being used to take the picture. the need for false light is diminished.

7. processing, completeing the development phase by rinsing the film or using stop bath, the silver crystals are removed, film is washed in water.

8. gelatin, the negative image, photographic paper and an enlarger

9. silver