Controlling your camera shutter

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  • Other factors contribute (like ISO and White Balance), but these three are the most important to understand in order to get the most out of your photography.
  • Here the viewfinder shows that the shutter speed is 1/250th of a second and the aperture is at f16.
  • Here the viewfinder shows that the shutter speed is 1/250th of a second and the aperture is at f16.
  • Here the viewfinder shows that the shutter speed is 1/250th of a second and the aperture is at f16.
  • Generally, leaf shutters are located inside the lens.
  • Generally, leaf shutters are located inside the lens.
  • The “ leaves ” open and close to let in light.
  • Focal-plane shutters are built into the camera body. The curtains move across the sensor exposing it to light in equal amounts.
  • Focal-plane shutters are built into the camera body. The curtains move across the sensor exposing it to light in equal amounts.
  • Here you can see that the stops are double or half the stop above or below them.
  • Here you can see that the stops are double or half the stop above or below them.
  • Here you can see that the stops are double or half the stop above or below them.
  • (Ask students how fast some of the numbers are: ie.: 30 = 1/30th of a second. Explain that the “ B ” setting means “ bulb ” and the shutter stays open as long as the shutter button is depressed.) Numbers in white dial window are ISO speeds. We will talk about ISO later.
  • The more sophisticated the camera, the more adjustments are possible. These are some common stop adjustments.
  • panned
  • panned
  • When planning to pan,decide where you want the subject to be at the moment of exposure, start moving the camera a few moments before the object reaches that point, and continue that motion after the exposure (follow through) as you would with a golf or tennis stroke.
  • Generally, the amount of motion blur will double if you increase the shutter speed by one stop (toward a longer time). Say change shutter speed from 1/60 to 1/30 of a second.
  • Here are some general shutter speed guidelines for taking photos with action parallel to the image plane.
  • Notice that the closer you are to the subject, the faster your shutter speed must be.
  • Here the boy jumps from an overturned garbage can for a slam dunk. Because the photo was taken at the peak of the action where it slows down, the shutter speed does not have to be as fast.
  • Here the boy jumps from an overturned garbage can for a slam dunk. Because the photo was taken at the peak of the action where it slows down, the shutter speed does not have to be as fast.
  • Controlling your camera shutter

    1. 1. Controlling YourCamera’s ShutterSpeedDigital Photography
    2. 2. 3 factors control howyour camera takes aphotograph:Shutter SpeedApertureFocal-Length of Lens
    3. 3. A slow shutter speed keeps the shutteropen longer and shows motion blur.
    4. 4. A fast shutter speed captures the motionwithout blurring because the shutter is
    5. 5. A large aperture opening producesphotographs with a shallow depth of field.Less of the photo is in focus.
    6. 6. A smaller aperture produces a greaterdepth of field making more of the scene infocus.
    7. 7. A short focal length lens captures more ofthe scene. It does not allow you to zoomin on your subject.
    8. 8. A long focal length lens allows you to getin closer to your subject.
    9. 9. Your viewfinder or LCD monitor showsboth the shutter speed and the apertureused.
    10. 10. Your viewfinder or LCD monitor showsboth the shutter speed and the apertureused.
    11. 11. Here the viewfinder shows that theshutter speed is 1/250th of a second andthe aperture is f16.
    12. 12. Two controls adjust the amount oflight that reaches the sensor:1. the shutter
    13. 13. Two controls adjust the amount oflight that reaches the sensor:1. the shutter2. and the aperture
    14. 14. The combination of theshutter speed and theaperture is called theEXPOSURE.
    15. 15. Shutter
    16. 16. Adjusting the length oftime the shutter remainsopen controls theamount of light thatreaches the light-sensitive surface.
    17. 17. There are two maintypes of shutters: Leafshutters...
    18. 18. Leaf shutters are usuallylocated within the lens itself.
    19. 19. The “leaves” open and close to let in light.
    20. 20. ...and Focal-planeshutters.
    21. 21. Focal-plane shutters are built into the camera body. The curtainsmove across the sensor exposing it to light in equal amounts.
    22. 22. Image in viewfinder
    23. 23. Image in viewfinder
    24. 24. Image in viewfinder
    25. 25. Image in viewfinder
    26. 26. Image in viewfinder
    27. 27. Image in viewfinder
    28. 28. The amount of time theshutter is open ismeasured in stops.
    29. 29. Doubling the amount oftime the shutter is opengives one stop moreexposure or twice theamount of light.
    30. 30. Halving the amount oftime the shutter is opengives one stop lessexposure orhalf the amount of light.
    31. 31. Older, analog (non-digital) cameras usuallycan only adjust shutterspeeds in increments offull stops.
    32. 32. This chart showsactual times theshutter is openand thedesignationsshown on thecamera.
    33. 33. Here you cansee that thestops aredouble or halfthe stopabove orbelow them.
    34. 34. These are theactual numbersthat the analogcamera displaysfor each of thesefull stops.
    35. 35. With analogcameras, shutterspeeds areadjusted manuallywith the speed dialon top of thecamera.
    36. 36. Newer analog cameras and most digital cameras can make many more shutter speed adjustmentsthan the older cameras.
    37. 37. Don’tconfuse 2meaning 1/2second with-2 meaning2 seconds!
    38. 38. On a digitalcamera, youcan see yourshutterspeed in theviewfinder.
    39. 39. On a digitalcamera, youcan see yourshutterspeed in theviewfinder...
    40. 40. You can also seeyour shutterspeed in the datapanel readout.
    41. 41. The faster the shutter speed,the sharper a moving subject will be.
    42. 42. 1/30 second 1/500 second
    43. 43. The direction of a moving object affects the amount of blur.
    44. 44. When an object is moving directly toward or away fromthe camera, no sideways movement is recorded so aminimum of blur is produced, even at a relatively slow shutter speed.
    45. 45. 1/30 second
    46. 46. Panning keeps a moving subject sharp while blurring the background
    47. 47. During panning, the camera is movedin the same direction as the subject.
    48. 48. The result is a sharp subjectand a blurred background.
    49. 49. 1/30 secondcamera panned
    50. 50. When planning to pan,decide where you want the subject to be at themoment of exposure, start moving the camera a few moments before the object reaches that point, and continue that motion after the exposure (follow through) as you would with a golf or tennis stroke.
    51. 51. Generally, the amount of motion blur will double if you increase the shutter speed by one stop (toward a longer time). Say change shutter speed from 1/60 to 1/30 of a second.
    52. 52. Here are some general shutter speed guidelines for taking photos with action parallel to the image plane.
    53. 53. Notice that the closer you are to the subject, the faster your shutter speed must be.
    54. 54. Motion slows at the peak of an action that reverses.
    55. 55. Here the boy jumps from an overturned garbage can for a slam dunk. Because the photo was taken at the peak of the action where it slows down, the shutter speed does not have to be as fast.
    56. 56. Clifford Oto, Slam Dunk, 1990
    57. 57. Here the camera moves against a stationary subject.
    58. 58. Laszlo Moholy-Nagy, Untitled, c. 1941
    59. 59. • Camera and subject are both in motion.
    60. 60. Simon Bruty,World Swimming Championships, Spain , 2003
    61. 61. Camera is held still while part of the subject moves.
    62. 62. Oliver Follmi, Pilgrimage to Bodghaya, India, 2002

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