Camera History &
Parts
CAMERA HISTORY
1. Explain the “camera obscura” effect. How is it achieved?
- Inside a completely dark room, a tiny hole is
created in one wall. Through the hole light is focused, and the outside
scene is projected (upside down) on the opposite wall.
2. What invention during the 17th Century helped man get a step
closer to creating the modern camera?
- the modern camera came one step closer when
Isaac Newton and Christian Huygens perfected the 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?
- the final touch was added by Joseph Nicéphore
Niépce. He added *film* to create the first successful photograph, and the
modern camera was born: A glass lens, a dark box, and 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. And guess what? The end result is still a
photograph.
5. What do digital cameras use to capture an image?
- cameras capture the images with an
electronic sensor called a CCD. Photographs are stored on reusable computer
memory devices.
6. What is the difference between the Auto Mode and the
Program mode?
- Program automatic-assist, just point and
shoot. Unlike full auto mode, you can usually control flash and a few
other camera settings.
7. What is the Portrait mode used for? How does it work?
- To attempt to blur out the background, camera
will try to use the fastest available lens setting (aperture).
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.
9. Why should you do a half press on the trigger button?
- Using the half-press is easy, aim your
camera directly at the subject and gently press the shutter release button
until the camera comes "alive". If you want to take the shot,
press down until the camera fires.
10. What does this symbol mean?
11.What does this symbol mean?
·
Auto-flash
12. What happens to your photo if there is too much light?
- Too much light and the picture will be washed
out.
13. What happens to your photo if there is not enough light?
·
Not enough light and the
picture will be too dark.
14. What is a “stop.”
·
Is used in every aspect of
photography to 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?
·
One
16. How many stops brighter is the new planet if there are four sons
instead of two?
·
Two
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?
·
You can control the
aperture by setting the "Aperture Opening", also known as an F-Stop.
20. When adjusting the aperture, how can you increase the amount of
light?
·
larger
openings = more light
