Wednesday, September 3, 2014

The Camera

1. Explain the “camera obscura” effect. How is it achieved? Camera Obscura is latin for dark room, and this was the first camera. It was a tiny hole through a wall and light would be focused and the outside scene was projected on the opposite wall.
2. What invention during the 17th Century helped man get a step closer to creating the modern camera? The process of making a high quality glass lens began from Isaac Newton and Christian Huygens.
3. What were the parts of the first modern camera invented by Niepce? A glass lens, a dark box, and a film.
4.What do modern digital cameras have in common with Niepce’s camera? It has a lens, a dark box, and a film.
5. What do digital cameras use to capture an image? An electronic sensor called a CCD.
6. What is the difference between the Auto Mode and the Program mode? Auto Mode is where the camera controls both flash and exposure. In program mode, you just point and shoot, you are able to control flash and other settings.
7. What is the Portrait mode used for? How does it work? It is used to blur out the background, so the camera will try to use the fastest lens setting (aperture).
8. What is the Sports mode used for? (not just sports) How does it work? It is used to freeze motion, the camera will use the highest shutter speed possible.
9. Why should you do a half press on the trigger button? You should half press the trigger button because it gives faster camera response time, more control over focus, and it encourages better composition.
10. What does this symbol mean? Disabled Flash.
 When would you use this? When the mood of the photograph can sometimes be more dramatic when the natural light is used.
11.What does this symbol mean? Auto Flash.
When would you use this? It is enabled by default and will automatically fire if the camera thinks it needs more light.

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? It'll be too dark.
14. What is a “stop.” It 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? 2
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? How much light passes through.
20. When adjusting the aperture, how can you increase the amount of light? Create a larger aperture opening.

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