questions

1. Explain the “camera obscura” effect. How is it achieved? Latin for "dark room". This was the first camera. 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? 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? A glass lens, a dark box, and film. 4.What do modern digital cameras have in common with Niepce’s camera? A digital camera is still composed of a lens, a dark box, and film. 6. What is the difference between the Auto Mode and the Program mode? The fully automatic (A)uto or (P)rogram mode is the default for most modern cameras. The photographer can simply aim, press the button, and almost be guaranteed a great image. 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? The "half-pressed" button is helpful in many ways, including: faster camera response time more control over focus encourages better composition 10. What does this symbol mean When would you use this? Disabled Flash http://www.photonhead.com/beginners/images/flash_icon_disabled.png 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? When would you use this? https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhBdzMAizHFlTnoeCiSHVFDfVfz79SIZim29FmmtkLjzgfoO_bygXiRi5ERU5XnKmxnFunF3M9SJpdc6ogZ2Q9Tv9U2u_KmO1gpU6W_XZplclDKt2qeYgVy7o1dtJaQxgCGYT2FakFkvkg/s1600/flash_icon_disabled.pngAuto-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? Aperture, shutter, and film settings are all divided up into "stops", even though the numbering systems are different. The following chart shows common exposure settings. For the sake of example, the default "exposure" is set to 1/125, f8, ISO100. Don't worry about the numbers for now, because one step = one stop, regardless of which setting you move. 13. What happens to your photo if there is not enough light? Aperture, shutter, and film settings are all divided up into "stops", even though the numbering systems are different. The following chart shows common exposure settings. For the sake of example, the default "exposure" is set to 1/125, f8, ISO100. Don't worry about the numbers for now, because one step = one stop, regardless of which setting you move. 14. What is a “stop.” 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? You are an astronaught travelling to a new planet. To your dismay, when you arrive your discover that your light meter has broken during the journey. The new planet is identical to Earth, except that it has TWO suns instead of one. 16. How many stops brighter is the new planet if there are four sons instead of two? You are an astronaught travelling to a new planet. To your dismay, when you arrive your discover that your light meter has broken during the journey. The new planet is identical to Earth, except that it has TWO suns instead of one. 17. What affect does a longer shutter speed of have? Longer shutter speeds = more light 18. What affect does a shorter shutter speed have? shorter shutter speeds = less light 19. What does the aperture control? The aperture is like a pupil. 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? The longer exposures ( like 1 second ) give much more light to the film than a 1/1000 of a second exposure. So even though the number may look bigger, don't be deceived!