Focussing problem, plz help

Discussion in 'Photography Beginners' Forum' started by ketan, Oct 18, 2009.

  1. ketan

    ketan TPF Noob!

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    (1) I am messing up when I use SLR (30D) for this type of photos. Always one of the two persons get focussed. Had I taken this with my S 80 canon (compact) both of them would have come focussed and the otherone is blurred.

    Gentleman is blurred
    [​IMG]
    Lady is slightly (comparatively) blurred
    [​IMG]

    (2) How do I learn good people photography.

    Thanks
     
  2. newrmdmike

    newrmdmike TPF Noob!

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  3. ketan

    ketan TPF Noob!

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    Thanks, but I see this more of perspective issue than apperture.
    I just keep the setting on 'P' and click. I am not sure where should I have positioned myself to have perfect focussing of all persons.
     
  4. DennyCrane

    DennyCrane No longer a newbie, moving up!

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    When the aperture is too big (low f-number), less of the things in the picture will be in focus. Things in front and behind of the focal point will be blurred. Use a smaller aperture (higher f-number) and more will be in focus.
     
  5. ketan

    ketan TPF Noob!

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    Thanks, in such cases would you recommend using fixed apperture mode (AV) say, at 5.6 will give better results?
     
  6. beni_hung

    beni_hung TPF Noob!

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    Don't use the "P" setting. Put your camera on aperture priority and keep it something medium (F8-14). Then play around with it until you get what you want. After you are comfortable with Aperture Priority then you can venture deeper into your camera.

    (This is just my suggestion).
     
  7. Plato

    Plato TPF Noob!

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    Yes.
     
  8. Buckster

    Buckster Been spending a lot of time on here!

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    No.

    5.6 will not do the trick to increase DOF enough for you to get both people in focus if they are not both an equal distance from the camera. You need to get down to something more like f/11, f/16, maybe even f/22, depending on what your focal length is and how far apart they are in relation to where the camera is.

    I suggest setting up a simple scene using some objects positioned at different distances from you. Think of books on a bookshelf where you're standing on one end of the bookshelf, so you see them all in perspective. Or a fence, where you're standing on one end of the fence and can see it in perspective.

    Now, put the close end of the bookshelf or fence (or whatever) on one side of the camera frame, and the far end on the other side of the camera frame. Focus on the middle between them. Now shoot a series of photos at every different f stop from lowest to highest, and take a look at the results. You will then understand aperture well enough to know what to do.
     
  9. Plato

    Plato TPF Noob!

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    Actually, it depends on several factors including aperture.
     
  10. Buckster

    Buckster Been spending a lot of time on here!

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    Do tell...
     
  11. Plato

    Plato TPF Noob!

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    But sensor size doesn't matter? Oh, I forgot. I dared to question the great and glorious Buckster who knows all.
     
  12. Buckster

    Buckster Been spending a lot of time on here!

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    He already stated he's using a 30D. It's not a variable in the equation for this guy.
     

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