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Understanding Exposure

Understanding Exposure. GETTING THE RIGHT AMOUNT OF LIGHT TO MAKE THE PICTURE. The Photographic Triangle. Photography’s creative tools include:. Aperture. Film Speed. Shutter Speed. Photographer must decide which one takes priority. The Photographic Triangle. Aperture

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Understanding Exposure

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  1. Understanding Exposure GETTING THE RIGHT AMOUNT OF LIGHT TO MAKE THE PICTURE

  2. The Photographic Triangle Photography’s creative tools include: Aperture Film Speed Shutter Speed Photographer must decide which one takes priority.

  3. The Photographic Triangle Aperture • most important for depth of field Shutter Speed • most important for action – show motion or stop action Film Speed • speed used allows for different aperture/speed combinations to provide a variety of creative effects

  4. The Photographic Triangle Which element you choose as a priority will be the most important decision you make before taking a photograph. next

  5. Shutter Speed • set as priority when object is moving and want to “freeze action” or “imply motion” or when hand holding camera • fast speed to freeze action • slow speed to imply motion (creates motion blur) • Not too slow when hand holding camera • shutter speeds are seconds or fraction of second • 2, 1, ½, ¼, 1/8, 1/15, 1/30, 1/60, 1/125, 1/250, 1/500, 1/1000 •  each speed is basically twice as fast as the previous and lets in half as much light as the previous

  6. Stop Action

  7. Stop Action

  8. Stop Action

  9. Stop action with the flash

  10. Shutter Speed Fast Speed to Freeze Action Which speed depends on: • distance to subject • farther away – slower speed OK • closer – faster speed needed • direction subject is moving • rule of thumb • 1/125 moving to/away • 1/500 – 1/1000 moving across • focal length of lens • long lens, faster speed needed • short lens, slower speed can be used

  11. Imply Motion

  12. Shutter Speed Ways to Imply Motion with Slow Speed • Panning – camera moves to follow moving subject (ex) • Intentional blur – subject moves, camera stationary (ex) • Camera movements – subject stationary or moving and camera moves (ex) • Zoom – camera stationary while zooming in/out (ex) • Long exposure – camera stationary while subject moving (ex) next

  13. Panning

  14. Panning back

  15. Intentional blur

  16. Intentional blur (with panning)

  17. Intentional blur

  18. Intentional blur (back)

  19. Camera movements

  20. Camera movements back

  21. Zoom - stationary subject

  22. Zoom - stationary subject

  23. Zoom – moving subject back

  24. Long exposure

  25. Long exposure

  26. Long exposure

  27. Long exposure

  28. Long exposure

  29. Shutter Speed • Handholding camera – shutter speed takes priority over aperture when holding camera and you want extremely sharp composition • If want to use a slower speed than is safe, use a tripod

  30. Shutter Speed • Safe hand holding speed – nearest speed to inverse of the lens focal length

  31. End of Shutter Speed Section

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