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Shutters, Apertures, Light Meter Readings and Depth of Field

Shutters, Apertures, Light Meter Readings and Depth of Field. Miss Wadycki and Mrs. VP. Aperture and Shutter. Aperture and Shutter are 2 ways to control the amount of light entering your camera. Aperture. Measured in F/Stops Size of the actual opening inside the lens. Apertures.

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Shutters, Apertures, Light Meter Readings and Depth of Field

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  1. Shutters, Apertures, Light Meter Readings and Depth of Field Miss Wadycki and Mrs. VP

  2. Aperture and Shutter • Aperture and Shutter are 2 ways to control the amount of light entering your camera.

  3. Aperture • Measured in F/Stops • Size of the actual opening inside the lens

  4. Apertures • Examples of F/Stop numbers: • F2.8, F4, F5.6, F8, F11, F16, F22

  5. Aperture • The larger the opening the more light will enter the camera. • Smaller numbers refer to larger openings!!!

  6. Aperture F/2.8 F/4 F/5.6 F/8 F/11 F/16 F/22

  7. Aperture • When you open up a stop from let’s say… F/8 to F/5.6 you DOUBLE the amount of light in. • When you close down a stop from F/5.6 to F/8 you CUT the amount of light in half.

  8. Shutter Speeds • Control the timing of your exposure • Measured in fractions of a second • Examples of shutter speeds: • 1/15, 1/30, 1/60, 1/125, 1/250, 1/500, 1/1000

  9. Shutter Speed • The longer the shutter is open… the more light hits the CCD.

  10. Flash

  11. 2 Seconds

  12. 6 seconds

  13. 16 Seconds

  14. VP’s best shot

  15. Shutter Speeds • When you decrease the shutter speed from let’s say… 1/125 to 1/60 you DOUBLE the exposure time. • When you increase from 1/60 to 1/125 you CUT the exposure time in half.

  16. Reciprocity • Exposing with a lot of light for a short amount of time is the same as exposing with little light for a long time.

  17. Shutter and Aperture • Reciprocity = how shutters and apertures work together!! F/11 F/8 F/5.6 1/125 1/250 1/500 Same exposure!

  18. Light Meter Readings • To achieve correct exposure…take a light meter reading! • Push your shutter button half way down and look at the information inside your camera.

  19. Light Meter Readings

  20. Depth of Field • Small DOF = One thing is in focus • Large DOF = Everything is in focus

  21. Depth of Field • Ways to control DOF • Aperture Number • Lens Length • Distance between you and subject

  22. Large D of F Wide Angle Lenses Large Aperture #’s F/22 Small D of F Long Lenses Small Aperture #’s F/2.8 Depth of Field

  23. So, what do I use? • Stop and think about what you are taking pictures of. • If it is moving quickly, fast shutter speeds are more important than your aperture. • If you’re taking scenery pictures, depth of field is important, so your aperture is more important than your shutter speed.

  24. Now Try It Yourself!!!

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