Camera History and Information

1. Explain the “camera obscura” effect. How is it achieved?
   Camera obsucra is latin for "dark room" and was the first camera. There is a dark room and a tiny hole is made in one wall,through the hole light is focused, and the outside scene is projects

2. What invention during the 17th Century helped man get a step closer to creating the modern camera?
    In the 17th century Iassc Newton and Christian Huygens perfected the understanding of optics and the process of making high quality glass lenses which was one step closer to creating the modern camera

3. What were the parts of the first modern camera invented by Niepce?
      A glass lens, a dark room, and flim

4.What do modern digital cameras have in common with Niepce’s camera?
   Light passes through the lens, into the camera and exposes film, and makes a photograph.

5. What do digital cameras use to capture an image?
    Digital cameras is electronic sensor called CCD  to capture an image

6. What is the difference between the Auto Mode and the Program mode?
    Auto mode will control flash and exposure while Program mode is automatic-assist and you can still control flash and a few other camera settings.

7. What is the Portrait mode used for? How does it work?
    Portrait mode is to blur out the background, it works by camera will try to uses the fastest available lens settings

8. What is the Sports mode used for? (not just sports) How does it work?
    Sport mode is use for sports, car races anything that you need a fast shutter, it uses the highest shutter speeds possible

9. Why should you do a half press on the trigger button?
 Because its focus lock and it tells you its ready to go


10. What does this symbol mean?

This means no flash its used when there is plenty of natural light.




11.What does this symbol mean?

When the camera thinks it needs more light.





12. What happens to your photo if there is too much light?
    If there is too much light the photo will wash out .

13. What happens to your photo if there is not enough light?
 Not enought light and the photo will be to dark.

14. What is a “stop.”
      A stop is a relative measurement of light.

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

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

3 stop


17. What affect does a longer shutter speed of have?
The longer the shutter speed the more light

18. What affect does a shorter shutter speed have?
Less light.

19. What does the aperture control?
The opening also know as  the F-stop.

20. When adjusting the aperture, how can you increase the amount of light?
      By having smaller F-stop numbers which gives it  larger openings which equals to more light.