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. The hole acted like a lens, focusing and projecting light onto the wall of the dark chamber.

2.What invention during the 17th Century helped man get a step closer to creating the modern camera? 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?Then in 1827 Joseph Nicéphore Niépce added the final touch. He added *film* to create the first successful photograph, and the modern camera was born

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? replacing old-fashioned plastic film, digital 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? On auto mode the camera will completely control flash and exposure. On most cameras this is labelled "auto", on others simply "A". Some cameras only have (P)rogram. When program it has 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? portrait is 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, the camera will use the highest shutter speed possible.

9. Why should you do a half press on the trigger button? Faster camera response time, more control over the focus and encourages better composition 

10. What does this symbol mean? Disable flash- 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.   

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

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.” The term "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 stop

16. How many stops brighter is the new planet if there are four sons instead of two? Two stops 

17. What affect does a longer shutter speed of have? Longer shutter speed equals more light

18. What affect does a shorter shutter speed have? Shorter shutter equals less light 

19. What does the aperture control? The aperture controls how much light hits the photo

20. When adjusting the aperture, how can you increase the amount of light? Create a larger opening