Friday, September 2, 2016

The Camera History and Basic Functions

1. Explain the “camera obscura” effect. How is it achieved?    
- The "camera obscura" effect, or "dark room", is known as the first camera. This camera is a dark box with a small hole in one wall, in this hole a stream of light is shown through, on the other side of the box the outside view is shown on the wall upside down. The hole acts as the lens and this lens projects light onto the wall of a dark room.

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

- The invention that was created in the 17th century that helped men create the modern camera was the lenses and optics created by Isaac Newton and Christian Huygens.

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

- The parts of the first modern camera invented by Joseph Niepce were a glass lens, a dark box, and a film.

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

- The modern digital camera and Niepce's camera both are composed of lens, a dark box, and a film.

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

- The digital camera uses an electronic sensor, or a CCD, to capture images.

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

- The difference between auto mode and program mode is that auto mode can be controlled and the program mode is automatic.

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

- The portrait mode is used for blurring out backgrounds of a picture by using the fastest lens available on the camera.

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

- The sports mode is used for capturing action shots in a freeze motion by using the highest shorter speed.

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

- You should do a half press on the trigger button because the camera will be set to take a picture, it will focus better and be quick.

10. What does this symbol mean? When would you use this?

- This controlling flash symbol is the disabled flash mode, it is used to disable the flash.

11. 
What does this symbol mean? When would you use this?

- This controlling flash symbol is the auto-flash mode, it is used to turn on flash automatically if the camera thinks the picture needs more light.

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

- If there is too much light in your picture the picture will be washed out.

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

- If there is not enough light in your picture the picture will be too dark.

14. What is a “stop.”

- A "stop" is a term that is a relative measurement of light.

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

- The planet is 1 stop brighter with two suns instead of one sun.

16. How many stops brighter is the new planet if there are four suns instead of two?

- The planet is 2 stops brighter with four suns instead of two suns.

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

- The effect of having a longer shutter speed gives the film more light.

18. What affect does a shorter shutter speed have?

- The effect of having a shorter shutter speed gives the film less light. 

19. What does the aperture control?

- The aperture controls the opening of where and how much light comes in.

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

- You can increase the amount of light in the aperture by making the opening bigger.

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