The Box
1. Explain the “camera obscura” effect. How is it achieved?
"Camera obscura" is Latin for "dark room".
The "camera obscura effect" was discovered in 500 BC when philosophers drilled a tiny hole in the wall of a completely dark room. The light is focused through the tiny hole and is projected onto the opposite wall, upside down. This was the first camera.
The hole in the wall was the lens, focusing the projected light onto the wall of the room.
2. What invention during the 17th Century helped man get a step closer to creating the modern camera?
In the 17th century, the understanding of optics was perfected by Isaac Newton and Christian Huygens. They also discovered the perfect process for making high quality lenses.
3. What were the parts of the first modern camera invented by Niepce?
In 1827, Joseph Nicephore Niepce created the first film for the camera, which gave it the final touch.
4.What do modern digital cameras have in common with Niepce’s camera?
Modern cameras still have a glass lens, a dark box and film.
5. What do digital cameras use to capture an image?
Digital cameras now use digital film as well.
Camera Modes
6. What is the difference between the Auto Mode and the Program mode?
Auto mode on your camera means that the flash and exposure are completely controlled by the camera. Program means you can control some of those things while taking a picture.
7. What is the Portrait mode used for? How does it work?
The portrait mode blurs out the background, which puts much more focus on the subject of the picture. The camera does this by using the fastest lens setting.
8. What is the Sports mode used for? (not just sports) How does it work?
When put in sports mode, the camera will use the highest shutter speed available, which freezes the motion of the subject.
9. Why should you do a half press on the trigger button?
When you half-press the button, it focuses the lens.
10. What does this symbol mean? When would you use this?
This symbol means that there is no flash. You want to use this setting when the natural light would work better than the flash.
11.What does this symbol mean? When would you use this?
The flash will automatically go off if the camera thinks the picture needs more light.
14. What is a “stop.”
A "stop" is 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
17. What affect does a longer shutter speed of have?
A longer shutter speed means that there will be more light in your picture
18. What affect does a shorter shutter speed have?
A shorter shutter sped means that there will be less light.
19. What does the aperture control?
The aperture controls the amount of light that is in a picture.
20. When adjusting the aperture, how can you increase the amount of light?
You can adjust the Aperture Opening to increase or decrease the amount of light in a picture.