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JRCC

JRCC. Further Tips to Acheiving a Poper Exposure. Tools. On your DSLR, there are several tools to be used to achieve a proper exposure. The Shutterspeed + Aperture (f/stop)+ ISO. Shutterspeed. the length of time the shutter is open, exposing the Sensor to light.

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JRCC

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  1. JRCC • Further Tips to Acheiving a Poper Exposure

  2. Tools • On your DSLR, there are several tools to be used to achieve a proper exposure. • The Shutterspeed + Aperture (f/stop)+ ISO

  3. Shutterspeed • the length of time the shutter is open, exposing the Sensor to light. • measure in time shutter is open. • 1/8000 of a second is fast • 1/80 of a second is slow for a 100mm lens • 1” is a second-point at which you must have a tripod • 5” is 5 seconds_ point at which you must have a tripod

  4. Aperture • The size of the opening behind the shutter. It determines the amount of light that is able to pass during the opening of the shutter. • It also determines the DOF (depth of field) • You want narrow DOF for portraits, typically. • You want wide DOF for Lanscape shots.

  5. ISO • How sensitive you sensor is to light. • Noise will become more noticable at higher ISO’s, depending on the quality of your camera.

  6. This sounds like a lot! • It’s a lot to think about, but it’s like driving a car. You learn things and use them one at a time, until you can do them all at one. You have to learn how to change your ISO, SHUTTERSPEED, AND APERTURE “..on the fly”

  7. this is the important first step • Use your camera’s incidental meter to assess the amount of light in your scene. You choose how it weighs the light. • Spot meters what on the spot you choose, and yes, you can move that spot. • Center weighted measures the light in an area. • Evaluative measures all of the light in the scene and uses that to base it’s metering.

  8. what and why • Use your vision and brain to assess the scene. • If there’s a bit of sun in the scene, it will change the measurement. Look for whites, blacks, and midtones, snap an image, then view Histogram to see what the camera saw.

  9. what and why 2 • Quick moving subject, faster shutterspeed. • DOF and amount of light and shutterspeed will determine aperture. • If you cannot get a proper shutter speed, increase ISO to help, keeping in mind you’re bringing in more noise the higher ISO you go.

  10. what and why • slow moving subject (landscapes, etc...), use a tripod and longer shutter speeds with a smaller aperture (f/12-f/16) to increase depth of field to achieve proper exposure. Use ISO if necessary.

  11. Review • Use shutterspeed and aperture as well as ISO to achieve proper exposure. • what is actully happening in the scene will determine settings to use. • Use meter, then adjust according to what the meter tells you, keeping in mind what will throw the meter off (sunlight in the scene).

  12. The End • Questions • Breakouts

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