Which ISO speed

Discussion in 'Beyond the Basics' started by HoboSyke, Sep 17, 2005.

  1. HoboSyke

    HoboSyke TPF Noob!

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    HI all. Just a question regarding ISO speed and action photography.

    If its bright and sunny and im shooting some sports photography what ISO would I pref use? Shooting on a 20D ? Using burst mode (5 frames a second) ?

    I shot the last ones on ISO 200. Could I use ISO 100 for those? Being bright and sunny ect? :greenpbl:
     
  2. ksmattfish

    ksmattfish Now 100% DC - not as cool as I once was, but still

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    As long as you have enough light to get the shutter speed you need with the aperture you've chosen there is no reason why not. In bright sun a good exposure for ISO 100 at f/8 is going to be around 1/400th to 1/800th of a second.

    I can't even tell the difference between ISO 100 and 200 on the 20D. The only reason I ever use ISO 100 is to get less DOF or a slower shutter speed.
     
  3. Artemis

    Artemis Just Punked Himself

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    Id say 200 - 400, just incase, but to be honest Matt above is perfectly right, ISO is made for every single different situation, and can not be applied before hand...
     
  4. DocFrankenstein

    DocFrankenstein Clinically Insane?

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    ISO 100 does give you extra 2-3 values in shadows when you process raw.

    Use whatever gives you high enough shutter speed.
     

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