DSLR Photography - Week 17 - Auto Focus

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From our DSLR Photography course lecture of February 28, 2011

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DSLR Photography - Week 17 - Auto Focus

  1. 1. DIGITAL SLR PHOTOGRAPHY Autofocus (AF) Sandro V CucciaFriday, March 4, 2011
  2. 2. Autofocus (AF) Technology USM AF-SFriday, March 4, 2011
  3. 3. Autofocus (AF) Technology Multiple AF Sensors AF Points 9 11 51Friday, March 4, 2011
  4. 4. Autofocus (AF) Technology Phase Detection Contrast Detection (LiveView Mode)Friday, March 4, 2011
  5. 5. Autofocus (AF) www.NikonUSA.com/Learn-And-Explore www.USA.Canon.com/dlcFriday, March 4, 2011
  6. 6. Autofocus (AF) Autofocus Modes The Half-PressFriday, March 4, 2011
  7. 7. Autofocus (AF) Autofocus Modes When Does the Camera Lock-In Focus? Where To Focus?Friday, March 4, 2011
  8. 8. Autofocus (AF) Autofocus Modes When Does the Camera Lock-In Focus? Single Autofocus (AF-S) Continuous Autofocus (AF-C) Automatic Autofocus (AF-A) …Friday, March 4, 2011
  9. 9. Autofocus (AF) Autofocus Modes When Does the Camera Lock-In Focus? Single Autofocus (AF-S) (Single Servo) (Autofocus Single) (One-Shot AF) (Single-Shot AF)Friday, March 4, 2011
  10. 10. When Does the Camera Lock-In Focus? Single Autofocus (AF-S) Focus is set ONCE Shutter will NOT release until focus is achieved Focus PriorityFriday, March 4, 2011
  11. 11. When Does the Camera Lock-In Focus? Single Autofocus (AF-S) Non–Action Photography Minimizes Out-of-Focus Photos Can’t Shoot While Camera is Seeking FocusFriday, March 4, 2011
  12. 12. Autofocus (AF) Autofocus Modes When Does the Camera Lock-In Focus? Continuous Autofocus (AF-C) (Continuous Servo) (AF Continuous) (AI Servo AF) (Continuous AF)Friday, March 4, 2011
  13. 13. When Does the Camera Lock-In Focus? Continuous Autofocus (AF-C) Camera Continues to Focus Shutter WILL release, no matter what Release Priority Use when the instant of shutter release is more important than obtaining sharp focus!Friday, March 4, 2011
  14. 14. When Does the Camera Lock-In Focus? Continuous Autofocus (AF-C) Action & Sports Photography Several Out-of-Focus Shots Possible Advanced Feature: Lock-On Timing (Sports)Friday, March 4, 2011
  15. 15. When Does the Camera Lock-In Focus? Single Autofocus (AF-S) Continuous Autofocus (AF-C) ?? …Friday, March 4, 2011
  16. 16. Autofocus (AF) Autofocus Modes When Does the Camera Lock-In Focus? Automatic Autofocus (AF-A) (Automatic AF) (AI Focus AF) (Automatic AF)Friday, March 4, 2011
  17. 17. When Does the Camera Lock-In Focus? Automatic Autofocus (AF-A) Compromise Alternates Between AF-S and AF-C Depending on … Subject Beginning to Move or Remaining StationaryFriday, March 4, 2011
  18. 18. Autofocus (AF) Autofocus ModesFriday, March 4, 2011
  19. 19. Autofocus (AF) A P Autofocus Modes E C R When Does the Camera Lock-In Focus? Single Autofocus (AF-S) Continuous Autofocus (AF-C) Automatic Autofocus (AF-A) …Friday, March 4, 2011
  20. 20. Autofocus (AF) A P Autofocus Modes E C R When Does the Camera Lock-In Focus? Where To Focus? …Friday, March 4, 2011
  21. 21. Autofocus (AF) Autofocus Modes Where to Focus?Friday, March 4, 2011
  22. 22. Where to Focus? Automatic Zone Selection Manual Zone SelectionFriday, March 4, 2011
  23. 23. Where to Focus? Focus Point Selection & LockFriday, March 4, 2011
  24. 24. Where to Focus? Dynamic Focus Area User-Selected Focus Area Nearest Subject Mode Predictive FocusFriday, March 4, 2011
  25. 25. Where to Focus? Focus Override Macro Lock/Lockout Minimum Focus Distance LockFriday, March 4, 2011
  26. 26. Where to Focus? Autofocus Assist Lamp …Friday, March 4, 2011
  27. 27. Where to Focus? Focus Locking and Back-Button AF Half-press AF Lock Button AF-ON ButtonFriday, March 4, 2011
  28. 28. Shooting Modes © Sandro V Cuccia - www.Imagemedic.comFriday, March 4, 2011
  29. 29. Shooting Modes Shooting Modes determine When and How Often the camera makes an exposure. a.k.a. … Drive Modes (Canon) © Sandro V Cuccia - www.Imagemedic.comFriday, March 4, 2011
  30. 30. Shooting Modes © Sandro V Cuccia - www.Imagemedic.comFriday, March 4, 2011
  31. 31. Shooting Modes Nikon (Shooting Modes) D90 D300 Single Frame √ √ Continuous Low Speed (CL) 1 - 4 fps 1 - 6 fps Continuous High Speed (CH) 4.5 fps 6 - 8 fps Live View √ √ Self Timer √ √ Mirror Up (MUP) n/a √ © Sandro V Cuccia - www.Imagemedic.comFriday, March 4, 2011
  32. 32. Shooting Modes Canon (Drive Modes) Rebel XSi Rebel T2i Single √ √ Continuous 3.5 fps 3.7 fps Self Timer w/mirror lock-up √ √ Self Timer Continuous* √ √ * Takes up to 10 shots © Sandro V Cuccia - www.Imagemedic.comFriday, March 4, 2011
  33. 33. EXPERIMENT! Take Notes Study the ResultsFriday, March 4, 2011
  34. 34. Sandro Cuccia sandro@ImageMedic.com w w w. I m a g e M e d i c . c o mFriday, March 4, 2011

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