Class 007 shutter & aperture

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Class 007 shutter & aperture

  1. 1. Shutter Speed By: Amit Chawla
  2. 2. Blurred v/s Frozen Shots
  3. 3. Blurred v/s Frozen Shots
  4. 4. What is shutter speed? It is essentially the  1/8000, indicator of the  1/4000, duration / timing  1/1000, at which the  1/500, shutter curtain  1/250, opens up and  1/125, closes during an  1/60, exposure process  1/30,  1/15,  1/8, 1/4, 1/2, 1 etc.
  5. 5. Shutter speed dial The shutter speed dial provide the selection of shutter speeds, and indicates the timing of the shutter open and closes. A fast shutter speed such as 1/500 sec will close faster than, say 1/2 sec exposure time. In this case, the shutter curtain will close very fast and thus resulting in less light entering the film.
  6. 6. What does shutter speed do ? Different shutter speeds yield different kind of visual effect on a final photograph. A fast shutter speed can freeze action while slow speed can blur your image
  7. 7. Examples of Slow Shutter Speed
  8. 8. Examples of Slow Shutter Speed
  9. 9. Examples of Fast Shutter Speed
  10. 10. Examples of Fast Shutter Speed
  11. 11. Creative effect of Combination
  12. 12. Aperture By: Amit Chawla
  13. 13. What is Aperture? The aperture is like a pupil in your eye. The pupil opening is bigger in a room with less light to allow you to see and Vice Versa. In Photography, Aperture is referred to lens diaphragm opening inside a photographic lens. The size of this diaphragm opening in a camera lens REGULATES amount of light that passes through onto film inside the camera. The size of an aperture in a lens can either be a fixed or adjustable type (like an SLR camera).
  14. 14. How is aperture calibrated ? Aperture size is usually calibrated in f-numbers. These are ratios. i.e. f 22 (f/22), f16 (f/16), f/11, f/ 8.0, f/5.6, f/4.0, f 3.5 ,f/2.8, f/2.0, f/1.8 etc.
  15. 15. What it means is f/16 will let in 1X the amount of light than a diaphragm opening of f/22 and so forth; f/4.0 will let in 1X lesser than that of f/2.8 etc. Aperture + Shutter Speed = Exposure Aperture, along with duration/timing of shutter curtain opening, BOTH contribute to a the formation of an exposure. Aperture also affects "depth of field"
  16. 16. Exposure Balancing Shutter and Aperture: Exposure is about different combinations of shutter and f-stop settings. These combinations can drastically affect the finished picture.
  17. 17. A COMPARISONALL PICS HAVE SAME AMT OF LIGHT
  18. 18. Amount of light
  19. 19. Amount of light
  20. 20. Relation between A and SS Shutter SpeedAperture Slow (1/30 sec) Fast (1/1000 sec)Small Overexposed — a slow Correct — a fast shutterf-stop shutter speed and small f- speed lets in less light, but a(f4.5) stop will both let in more light small f-stop lets in moreLarge Correct — a slow shutter Underexposed — a fastf-stop speed lets in more light, but a shutter speed and large f-(f22) large f-stop lets in less stop both let in less light

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