What am I doing wrong??!!

Discussion in 'Photography Beginners' Forum' started by chris182, Jan 10, 2010.

  1. chris182

    chris182 TPF Noob!

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    I was attemping the take some pictures of my neice cheerleading,she is only 6 so they arent doing really fast crazy stuff. It was at a church gymnasium with horrible florecent lights so when I use flash they all show up dark. I was shooting farely far away with a 55-200 vr lens,most were shot around 80-120mm. I had aperature as far down as f4 I beleive and every picture I took came out really blurry. I am very new and have tried to read up on what I could be doing wrong but I just cant figure it out. When I used the flash,they were more clear,just super dark. Can someone please point me in the right direction. Thanks
     
  2. KmH

    KmH Helping photographers learn to fish Supporting Member

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    You don't say how far away you were (in feet or meters), what shooting/metering/focus mode you were using, nor what flash unit and settings.

    As a basic statement: Light falls of as a square function that is inversely proportional to distance. (Inverse Square Law of Light)

    How are your math skills?

    You can calculate the correct exposure:
    f-stop (aperture) = Guide number of your flash (GN at ISO 100, ft/m) x ISO sensitivity x shooting distance (ft/m)
     
    Last edited: Jan 10, 2010
  3. gsgary

    gsgary Been spending a lot of time on here!

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    For a start your lens does not have a fast enough aperture, f2.8 minimum needed
    what iso were you using, i would say if the lighting was only horrible florecent lights you would probably have to be at iso3200 minimum
     

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