Camera History and Information
1. Explain the “camera obscura” effect. How is it achieved?
"Camera obscure" is latin for "dark room", which is exactly what the first camera was. It was achived by a hole that was almost like a lens, then it focused on a wall in a dark room and projected light onto the wall.
2. What invention during the 17th Century helped man get a step closer to creating the modern camera?
In the 17th Century, lenses and optical devices were created to better further the invention of the camera.
3. What were the parts of the first modern camera invented by Niepce?
The final piece of the first successful camera was film, which was created by Joseph Nicephore Niepce in 1827.
4.What do modern digital cameras have in common with Niepce’s camera?
Modern cameras are still true to the method in which Niepce used, light still passes through a lens and exposes the film. Modern digital cameras and Niepce's camera are both portable. Niepce's camera is no where near the size of some of the cameras we have to today, and the quality is even further away from what we have today.
5. What do digital cameras use to capture an image?
Digital cameras use an electronic sensor instead of film, then stored onto a computer.
6. What is the difference between the Auto Mode and the Program mode?
Auto mode is automatic, and Program mode is manual. In Auto mode, it controls your flash, exposure, and focus. In Program mode, you can just point and shoot, you can control flash and focus.
7. What is the Portrait mode used for? How does it work?
Portrait mode blurs the background. It uses the fastest lens setting which is "aperture".
8. What is the Sports mode used for? (not just sports) How does it work?
Sports mode is used to freeze motion, it uses the fastest possible shutter speed.
9. Why should you do a half press on the trigger button?
You should always half press the trigger button on a camera because it will allow you to focus on your subject.
When would you use this?
This should be used to not disturb anyone in a setting where a flash might be a distraction. Sometimes natural light is better for a picture also.
11.What does this symbol mean?
When would you use this?
This setting might be good when you are trying to get the best picture, regardless of anyone around you.
12. What happens to your photo if there is too much light?
If there is too much light you should adjust the settings on the camera to make the picture darker.
13. What happens to your photo if there is not enough light?
If there is not enough light you should adjust the settings on the camera to make the picture lighter.
14. What is a “stop.”
A "stop" is a measurement of light that is double every one "stop".
15. How many stops brighter is the new planet if there are two sons instead of one?
The new planet is one stop brighter.
16. How many stops brighter is the new planet if there are four sons instead of two? (Hint: the “show answer” feature is wrong).
If there were four suns on the new planet, it would be two stop brighter relative to our planet which has one sun, but relative to this new planet with two suns, it would be one stop brighter.
17. What affect does a longer shutter speed of have?
Longer shutter speed will allow more light into the picture.
18. What affect does a shorter shutter speed have?
Shorter shutter speed will allow less light into the picture.
19. What does the aperture control?
The aperture controls how much light enters though it.
20. When adjusting the aperture, how can you increase the amount of light?
When adjusting the aperture you can increase the amount of light by adjusting the f-stops on the camera to allow more light into the aperture by making a larger opening.
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