Tuesday, September 8, 2015
The Camera: History and Information
1. Explain the “camera obscura” effect. How is it achieved?
The camera obscura effect is like the first camera. The effect is achieved with a hole on the wall of a dark chamber. The hole acts like a lens projecting light onto the opposite wall.
2. What invention during the 17th Century helped man get a step closer to creating the modern camera?
The invention of glass lenses by Issac Newton and Christian Huygens helped the two have a better understanding of optics and led man one step closer to the invention of the camera.
3. What were the parts of the first modern camera invented by Niepce?
Niepce invented film and the modern camera was born.
4.What do modern digital cameras have in common with Niepce’s camera?
Both the modern digital camera and Niepce's version function similarly. Light passes through the lens, into the camera, and exposes the film in both cameras.
5. What do digital cameras use to capture an image?
Digital cameras capture images with an electric sensor called CCD. Photographs are stored on computer memory devices.
6. What is the difference between the Auto Mode and the Program mode?
On auto mode the camera will control flash and exposure, with auto mode the photographer is guaranteed a good photo with just having to point and shoot. Program mode allows the photographer to control and choose the settings of the camera (like the flash and etc.).
7. What is the Portrait mode used for? How does it work?
Portrait mode is used for portraits of people. The camera will attempt to blur the background and use the lens setting aperture.
8. What is the Sports mode used for? (not just sports) How does it work?
Sports mode is used to record/photograph moments with movement and action. To freeze the motion the camera will use the highest shutter speed possible.
9. Why should you do a half press on the trigger button?
Using a half press on the trigger button will let the photographer have a faster camera result time, more control over focus, and better composition.
10. What does this symbol mean? When would you use this?
This symbol means no flash. You would not use flash if you want a more dramatic tone by using natural lighting.
11.What does this symbol mean? When would you use this?
This symbol means auto flash which the camera would automatically use flash. You would use auto flash if the camera thinks it needs more light.
12. What happens to your photo if there is too much light?
If there is to much light in your photo it might look washed out.
13. What happens to your photo if there is not enough light?
Not enough light will make the picture appear to dark.
14. What is a “stop.”
In photography a 'stop' is used 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?
The new planet would be one stop brighter.
16. How many stops brighter is the new planet if there are four suns instead of two?
The planet would be two stops brighter.
17. What affect does a longer shutter speed of have?
The effect of a longer shutter speed is more light.
18. What affect does a shorter shutter speed have?
The affect of a shorter shutter speed is less light.
19. What does the aperture control?
The light reaching the film.
20. When adjusting the aperture, how can you increase the amount of light?
You can increase the light by changing it to a larger F-stop,or a larger opening.
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