Camera History and Parts

 "THE CAMERA"
1.Explain the “camera obscura” effect. How is it achieved?

Inside a completely dark room, a tiny hole is created in one wall. Through the hole light is focused, and the outside scene is projected (upside down) on the opposite wall.

2. What invention during the 17th Century helped man get a step closer to creating the modern camera?

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. What were the parts of the first modern camera invented by Niepce?

A glass lens, a dark box, and film.

4.What do modern digital cameras have in common with Niepce’s camera?

Light passes through the lens, into the camera, and exposes the film. And guess what?

5. What do digital cameras use to capture an image?

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

"CAMERA MODES"

6. What is the difference between the Auto Mode and the Program mode?

The camera will completely control flash and exposure. On most cameras this is labelled "auto", on others simply "A". Program mode automatic-assist, just point and shoot. Unlike full auto mode, you can usually control flash and a few other camera settings.

7. What is the Portrait mode used for? How does it work?

To attempt to blur out the background, camera will try to use the fastest available lens setting

8. What is the Sports mode used for? (not just sports) How does it work?

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

9. Why should you do a half press on the trigger button?

The "half-pressed" button is helpful in many ways, including faster camera response time more control over focus encourages better composition.

 10. What does this symbol mean?

No flash. There are many cases where you may not want flash at all. The mood of the photograph can sometimes be more dramatic when the natural light is used.
  When would you use this?
You would use it when there is enough light or when you just don't want the flash.

11.What does this symbol mean?

In most camera modes, Auto-flash is enabled by default and will automatically fire if the camera thinks it needs more light.
When would you use this?
You would use it when its dark or when the camera thinks it needs more light. 

12. What happens to your photo if there is too much light?

Too much light and the picture will be washed out.

13. What happens to your photo if there is not enough light?

 Not enough light and the picture will be too dark.

14. What is a “stop.”

"Stop" is used in every aspect of photography to represent a relative change in the brightness of light.

15. How many stops brighter is the new planet if there are two sons instead of one?

1

16. How many stops brighter is the new planet if there are four sons instead of two? (Hint: the “show answer” feature is wrong).

4

17. What affect does a longer shutter speed of have?

More light.

18. What affect does a shorter shutter speed have?

Less light.

19. What does the aperture control?

Brightness is reduced.

20. When adjusting the aperture, how can you increase the amount of light?

moving from f16 to f8 is:
TWO STOPS brighter.