Camera history and Information

The Camera:
1. Explain the "camera obscura effect. How is it achieved?
    Inside a dark room, a tiny hole is put in one wall. And the hole acted like a lens, focusing and                  projecting light onto the wall of the dark chamber.

2. What invention during the 17th Century helped man get a step closer to creating the modern camera?
    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?
    Niepce added film to create the first successful photograph. He used 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 it still makes a camera.

5. What do digital cameras use to capture an image?
    Digital cameras use a electronic sensor called a CCD, and stored on reusable computer memory devices.

Camera Modes:
6. What is the difference between the Auto Mode and the Program mode?
     Auto- the camera will completely control flash and exposure.
     Program- 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 blur out the back ground, and 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?
     To freeze motion, camera will use the highest shutter speed possible
The Half Press:
9. Why should you do a half press on the trigger button?
     The camera will attempt to lock focus on the subject. The focus lock allows the photographer to freeze the point of focus before taking the photograph. And the camera will respond quicker from a half press.

Control Flash:
10.  Disabled Flash or no flash
11. Auto flash

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 to dark.

The Universal Stop:
14. What is a stop?
       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 stop brighter
16. How many stops brighter is the new planet if there are four sons instead of two?
      2 stops brighter
Shutters and Aperture:
17. What affects does a longer shutter speed have?
       Longer shutter speed has more light.
18. What affect does a shorter shutter speed have?
       Shorter shutter speeds has less light.
19. What does the aperture control?
       Brightness is reduced.
20. When adjusting the aperture, how can you increase the amount of light?
       Closing up to restrict light and opening up to let it through.