Session 5 Shutter Speed (Basic Photography Class)

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Shutter Speed Lecture

Text of Session 5 Shutter Speed (Basic Photography Class)

  • 1. SPEED MATTERS Basic Photography Class Mass Communication Department Ateneo de Davao University Bong S. Eliab

2. What is a shutter speed? shutter speed is the time for which the shutter is held open during the taking of a photograph to allow light to reach the film (on analog cameras) or image sensor (on digital cameras) 3. Regulates Light In combination with variation of the lens aperture, the shutter speed regulates how much light the camera will record. 4. Shutter Speed & Aperture For a given exposure, a fast shutter speed demands a larger aperture or more light to avoid underexposure, just as a slow shutter speed is offset by a very small aperture to avoid over-exposure. Long shutter speeds are often used in low light conditions, such as at night. 5. Shutter Speed and Aperture 6. Iris Shutter Mechanism 7. Plate Mechanism 8. dSLRs Mechanism 9. Where to find the shutter speed dials 10. dSLRs LCD Display 11. Freeze Action vs. Capture Motion Two main issues: Freeze the subject or the camera movement, or both; Capture the subjects motion, or camera shake, or both. 12. Speed Difference Shot at 1/15th of a second using a tripod (see how the water makes long soft streaks) Shot at 1/250th (even at this slow speed already it freezes the drops in the air) 13. Freezing Movement High shutter speeds 'freeze' the subjects movement as the subject has little time to move during the exposure.Blue Eagle Gym Circa 1992 14. Capturing Moving ColorsA photo of dark street at night (exposure time 20 seconds) 15. Panning/ Slow Shutter SpeedSlow shutter speed combined with panning the camera can achieve a motion blur for moving objects. 16. Camera Shake Slow shutter speed can result in 'camera shake', caused by the photographers inability to hold the camera still. Generally, shooting at less than 1/60th of a second may result in camera shake. To avoid this, a tripod can be used. 17. Handheld Rule and BlurTo avoid motion blurring, the shutter speed (in sec. ) should equal the reciprocal of the chosen focal length (in mm), i.e. 1/60sec for 60mm. 18. Bulb Shutter Speed 19. Remote Controls 20. Shutter Speed Speed Remarks 1 1 second, very slow, tripod needed2 1/2th of a second, tripod needed4 1/4th of a second, tripod needed8 1/8th of a second, tripod needed15 1/15 of a second, tripod/very steady hand needed30 1/30th of a second, tripod /very steady hand needed60 Slowest shutter speed that can be handheld with 50 mm lens 21. Shutter SpeedSpeed Remarks 125 1/125, generally handheld250 1/250500 1/5001000 Very fast, freezes all movement 22. Shutter Speed Combinations 23. Motion EffectNude Photo Exercise Circa 2005 24. Sinugba sa DagatSparks coming from coals (exposure time 15 seconds) 25. JP Laurel Hub 24 hrsRichard Amora Davao City 2007 26. Rorschach Smoke TestISO 100, 1/60 sec, f/8 27. Silky Waterfall 28. Davaos Octane BarBong S. Eliab Davao City 2006 29. Hinubog DrivingManila Circa 2005 30. Boracays Dancing CandleBong S. Eliab Boracay 2007 31. Sound of Boracay LightBong S. Eliab Boracay 2007