1. Explain the “camera obscura” effect. How is it achieved? In a dark room, a tiny hole is made in the wall, the light is focused on the hole and the outside scene is projected on the opposite wall.
2. What invention during the 17th Century helped man get a step closer to creating the modern camera? 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 a film.
4.What do modern digital cameras have in common with Niepce’s camera? Light passes through the lens, into the camera, and exposes the film.
5. What do digital cameras use to capture an image? An electronic sensor called a CCD
Camera Modes
6. What is the difference between the Auto Mode and the Program mode? Auto Mode will concentrate on getting the shot instead of exposure calculations.
7. What is the Portrait mode used for? How does it work? To try to blur out the background, 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 try to lock focus on the subject and the camera will respond quicker from a half-press.
Controlling Flash
10. What does this symbol mean? No flash.
When would you use this? When you don't need the flash and use the natural light instead.
11.What does this symbol mean? Auto flash is enabled by default.
When would you use this? The camera will use the flash if it thinks it needs more light.
Introduction to Exposure
12. What happens to your photo if there is too much light? Picture will be washed out.
13. What happens to your photo if there is not enough light? Picture will be to dark.
The Universal stop
14. What is a “stop.” 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 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 stops?
Shutters and Aperture
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? Can control the aperture by setting the F-stop.
20. When adjusting the aperture, how can you increase the amount of light? By closing up to restrict light, and opening up to let it through.
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