Tuesday, September 11, 2012

"The Camera"

"The Camera"

1. Explain the “camera obscura” effect. How is it achieved?
 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?
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.

4.What do modern digital cameras have in common with Niepce’s camera?
 The latest digital cameras work the same way as their ancestors:

5. What do digital cameras use to capture an image?
 Light passes through the lens, into the camera, and exposes the film and the end result is still a photograph.

"Camera Modes"

6. What is the difference between the Auto Mode and the Program mode?
Auto The camera will completely control flash and exposure. On most cameras this is labelled "auto", on others simply "A."
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?
Portrait to attempt to blur out the background.
Try to use the fastest available lens setting (aperture).

8. What is the Sports mode used for? (not just sports) How does it work?
Sports 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 "half-pressed" button is helpful in many ways, including:

    faster camera response time
    more control over focus
    encourages better composition
Its good for If the subject is somewhat off-centre, the auto-focus may be fooled.

"Controlling Flash"

10. What does this symbol mean?
  No flash. There are many cases where you may not want flash at all.

 When would you use this?
When the place is dark.

11.What does this symbol mean?
Auto-flash is enabled by default and will automatically fire if the camera thinks it needs more light.

When would you use this?
 If the camera thinks it needs more light.

"Introduction to Exposure"

12. What happens to your photo if there is too much light?
 Exposure is the measuring and balancing of light.Too much light and the picture will be washed out

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











"The Universal Stop"

14. What is a “stop.”
The term "stop" 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 suns instead of one?
   1

16. How many stops brighter is the new planet if there are four sons instead of two? (Hint: the “show answer” feature is wrong).
  2


"Shutters and Aperture"

17. What affect does a longer shutter speed of have?
Longer shutter speeds = more light

18. What affect does a shorter shutter speed have?
shorter shutter speeds = less light

19. What does the aperture control?
The aperture is like a pupil. You can control the aperture by setting the "Aperture Opening", also known as an F-Stop.


20. When adjusting the aperture, how can you increase the amount of light?
Larger openings = more light.






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