the camera

The camera 

1. Explain the “camera obscura” effect. How is it achieved?
its is know also as the dark room This was the first camera the hole acted like a lens focusing and projecting light onto the walls of the dark chamber.
2. What invention during the 17th Century helped man get a step closer to creating the modern 
camera? 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?
there were small portable obscuras, but an import part was missing he added the final touch. 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 
5. What do digital cameras use to capture an image?
electronic sensor called a CCD
The modes

6. What is the difference between the Auto Mode and the Program mode?
 well Auto is used to camera will completely control flash and exposure. On most cameras this is labelled "auto", on others simply "A". Some cameras only have (P)rogram and program is used to  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?
the portrait mode is used for 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?
the sport mode is used for To freeze motion, camera will use the highest shutter speed possible. The half press

9. Why should you do a half press on the trigger button?
you should do this because Point the camera at the subject and half-press. Wait for focus lock. While focusing, the camera will show a blinking focus indicator (usually a green dot). When you hear a beep and the indicator stops blinking, the camera is telling you it's ready to go..


Controlling flash 

10. What does this symbol mean?
no flash. There are many cases where you may not want flash at all. The mood of the photograph can sometimes be more dramatic when the natural light is used.

 When would you use this?
When there is harsh lighting 

11.What does this symbol mean?
In most camera modes, Auto-flash is enabled by default and will automatically fire if the camera thinks it needs more light.
When would you use this?
When the light level is low 



Go back to main menu and click on "Introduction to Exposure."
12. What happens to your photo if there is too much light?
the photo looks washed out .

13. What happens to your photo if there is not enough light?
not enough light and the photo looks to dark.
Go back to main menu and click on "The Universal Stop."
14. What is a “stop.”
is a relative measurement of light 

15. How many stops brighter is the new planet if there are two suns instead of one?
1
16. How many stops brighter is the new planet if there are four suns instead of two?
2
Go back to main menu and click on "Shutters and Aperture"
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?

Smaller F-stops numbers = larger openings

larger openings = more light