Wednesday, September 12, 2012

Camera History & Information

                                                               "The Camera"
1. Explain the camera "obscura" effect. How is it achieved?
The camera "obsura" effect is the projection of a scene upside down. It is achieved by being in a dark room with a tiny hole. In the hole light is focused, and the outside scene is projected on the opposite wall.
2. What invention during the 17th Century helped man get a step closer to creating the modern camera?
The invention during the 17th Century that helped man get a step closer to creating the modern camera is 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 were the parts of the first modern camera invented by Niepce.
4.What do modern digital cameras have in common with Niepce’s camera?
What they have in common is that light passes through the lens, into the camera, and exposes the film. The end result is still a photograph. Also a digital camera is still composed of a lens, a dark box, and film.
5. What do digital cameras use to capture an image? 
Digital cameras use an electronic sensor called a CCD.
                                                               "Camera Modes"
6. What is the difference between the Auto Mode and the Program mode?
There is no difference between auto/program mode.
7. What is the Portrait mode used for? How does it work?
The Portrait mode is used to attempt to blur out the background. The 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?
The sports mode is used to freeze motion. The camera will use the highest shutter speed possible.
                                                               "The Half Press"
9. Why should you do a half press on the trigger button?
You should do a half press on the trigger button because of the faster camera response time, more control over focus, and encourages better composition. 
                                                               "Controlling Flash"
10. What does this symbol mean?
It means no Flash.
11. What does this symbol mean?
It means that it will automatically fire if the camera thinks it needs more light.
                                                               "Introduction to Exposure"
12. What happens to your photo if there is too much light?
The picture will be washed out.
13. What happens to your photo if there is not enough light?
The picture will be too dark.
                                                              "The Universal Stop" 
14. What is a "stop."
A stop is the change of the brightness of light.
15. How many stops brighter is the new planet if there are two suns instead of one?
It is 1 stop brighter.
16. How many stops brighter is the new planet if there are four suns instead of two?
It is 2 stops brighter.
                                                            "Shutters and Aperture"
17. What affect does a longer shutter speed have?
The affect of a longer shutter speed is that it has more light.
18. What affect does a shorter shutter speed have?
 The affect of a shorter shutter speed is the it has less light.
19. What does the aperture control?
The aperture controls the light.
20. When adjusting the aperture, how can you increase the amount of light?
You can increase the amount of light by adjusting your F-Stop to smaller numbers.

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