1) The effect came to be known as the "camera obscura" which is Latin for "dark room". This was the first camera. The hole acted like a lens, focusing and projecting light onto the wall of the dark chamber.

2) In the 17th century, the modern camera came one step closer when Isaac Newton and Christian Huygens perfected the understanding of optics and the process of making high quality glass lenses.

3) A glass lens, a dark box, and film. 

4) Light passes through the lens, into the camera, and exposes the film. And guess what? The end result is still a photograph.

5) Digital cameras capture the images with an electronic sensor called a CCD. 

6) In auto mode the camera will completely control flash and exposure. On most cameras this is labelled "auto", on others simply "A". Some cameras only have (P)program, while on program mode, automatic assist, just point and shoot.

7) To attempt to blur out the background, camera will try to use the fastest available lens setting (aperture).

8) To freeze motion, camera will use the highest shutter speed possible.

9) Use the Half press camera button for faster response time, more control over focus, and better composition

10) No flash

11) Auto Flash

12) Too much light and the picture will be washed out.

13) The picture will be too dark.

14) A relative change in the brightness of light.

15) One stop brighter

16) Two stops brighter

17) More light

18) Less light

19) The light

20) Smaller F-stops numbers = larger openings,  larger openings = more light