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film-How to Make an Exposure
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film-How to Make an Exposure


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  • 1. How to make an Exposure The Trinity and Beyond
  • 2. Film
  • 3. The Trinity-Aperture
    • Controls how large the opening is that lets light through to the sensor
    • Called f-stops
    • Full stops
      • 1,1.4, 1.8, 2.0, 2.8, 3.5, 4, 5.6, 8, 11, 16, 22,32
    • Controls depth of field
    • The higher the number the smaller the aperture hole is
    • The higher the number the more depth of field
    • To change the aperture use the ring on your lens
  • 4.  
  • 5. Depth of Field
  • 6. The Trinity-Shutter Speed
    • Controls how long light passes through to the film
    • Change shutter speed with shutter speed dial
    • Can be anywhere from 1/4000 second to 1 second to minutes
    • 1/500=one five hundredth of a second
    • 1” = one second
    • Anything under 1/60 will have motion blur from your hands shaking (called camera shake)
    • Bulb setting-shutter stays open as long as you press the button
  • 7. Fast Shutter Speed
  • 8. Slow Shutter Speed
  • 9.  
  • 10. ISO
    • Controls how sensitive(fast) your film is
    • ISO cannot be changed mid roll
      • ISO can only be changed with a change of film
    • Runs in multiples
      • 50, 100, 200, 400, 800, 1600, 3200
    • 100-400 for bright light
    • 400-800 for less light
    • 1600 for very dark situations
      • After 800 you begin to have lots of grain
    • Your ISO will affect the choices of aperture and shutter speed available to you
    • A higher ISO will allow you to use faster shutter speed
  • 11. Add all three and you have an Exposure
    • Now we have to combine all three to make our exposure
    • Set your ISO
    • Make choices about aperture and shutter and use your light meter to get the correct exposure
  • 12. Light Meter
    • Measures the light coming into the camera
    • This measurement allows you to choose the correct aperture and shutter speed
    • Press the shutter release half way down to get a light meter reading
    • The goal is to get the perfect exposure
      • How your light meter indicated that exposure is correct depends on the camera
        • Digital readout, swinging bar, green light…
    • Choose an aperture or shutter speed that you want to start with and then then scroll with the other (aperture or shutter speed)until you have the correct exposure
  • 13. Underexposed Overexposed
  • 14.  
  • 15.  
  • 16. Summary of Making an Exposure
    • Set your ISO
    • Choose your shutter speed or aperture
    • Use your light meter to get the corresponding shutter speed or aperture
    • Take the photo and appease the film gods!