1. Explain the “camera obscura” effect. How is it achieved?
The "camera obscura" effect is an optical effect which was created by the Greeks and Chinese where a small hole is made in a dark room, and then light is shone from outside through the small hole, focusing on the inside wall of the dark room. The small hole acted as a camera lens which focused on a certain part of the wall.
2. What invention during the 17th Century helped man get a step closer to creating the modern camera?
The invention of high quality glasses lenses created by Issac Newton and Christian Huygens brought them one step closer to the creation of the modern camera.
3. What were the parts of the first modern camera invented by Niepce?
The first parts of the modern camera were glass lens, film and a dark box.
4.What do modern digital cameras have in common with Niepce’s camera?
The main function of a modern camera and Niepce's camera are still the same, the light passes through the lens and exposes the film, creating a photograph.
5. What do digital cameras use to capture an image?
Digital cameras use electronic sensors (CCD) to capture a photograph.
6. What is the difference between the Auto mode and the Program mode?
The difference between Auto mode and the Program mode is on Auto Mode the flash and focus is already controlled by the machine, but on the Program mode you set the flash and focus.
7. What is the Portrait mode used for? How does it work?
Portrait mode is used for blurring out the background and focusing on the image right in front of you. It works by using the fastest available lens setting, known as the aperture.
8. What is the Sports mode used for? (not just sports) How does it work?
Sports mode is used for freezing motion by using the highest shutter speed on the camera.
9. Why should you do a half press on the trigger button?
You should do a half press on the trigger button because it has many benefits that result in a more successful photograph including a faster camera response time, more control over the focus, and better position.
10. What does this symbol mean? When would you use this?
11. What does this symbol mean? When would you use this?
12. What happens to your photo if there is too much light?
When there is too much light in your photograph, the photo you take will appear washed out.
13. What happens to your photo if there is not enough light?
When there is not enough light in your photograph, the photo will appear dark.
14. What is a “stop.”
A "stop" is a relative measure of light, you you have more stops, you have more light, if you have less stops, you have less light.
15. How many stops brighter is the new planet if there are two suns instead of one?
The new planet is brighter by one stop because it has one more sun than the other planet.
16. How many stops brighter is the new planet if there are four suns instead of two?
The new planet is brighter by two stops because it has two more suns than the other planet.
17. What affect does a longer shutter speed of have?
The affect of a longer shutter speed is it exposes more light when giving the brief flash of light.
18. What affect does a shorter shutter speed have?
The affect of a shorter shutter speed is it exposes less light when giving the brief flash of light.
19. What does the aperture control?
The aperture controls the brightness.
20. When adjusting the aperture, how can you increase the amount of light?
You can increase the amount light passed through the aperture by decreasing the number of the F-stops.
No comments:
Post a Comment