Focusing on a subject, methods?

Discussion in 'Digital Photography' started by RedDragon870503, Jan 27, 2009.

  1. RedDragon870503 macrumors 6502

    RedDragon870503

    Joined:
    Sep 6, 2006
    #1
    I've just got into shooting portraits and I've had some difficultly focusing on a subject, then trying to get them in one side of the picture without my lens focusing on the background.

    Evaluated mode works okay but not perfect.

    I find myself spot focusing then flicking AF to MF to take a shot. It's not terrible but it sure isn't conveintent.

    My question, in summary, is what is the best way to auto-focus a non centered subject?
     
  2. mattyb240 macrumors 6502a

    Joined:
    May 11, 2008
    #2
    Can't you manually set the focusing point in the menu system? I can on my 1000D.
     
  3. RedDragon870503 thread starter macrumors 6502

    RedDragon870503

    Joined:
    Sep 6, 2006
    #3
    Nope.

    But!

    Your post sparked a thought about how one does go about changing the focus point and I realized I can do it without entering a menu hierarchy. A little bit of a "doh" moment. Problem solved.

    Thanks! Sometimes the incorrect answer finds the correct answer. :D
     
  4. gnd macrumors 6502a

    gnd

    Joined:
    Jun 2, 2008
    Location:
    At my cat's house
    #4
    You can use center spot focusing. Half press the shutter to focus, then while holding the shutter half pressed recompose the photo and when you're done composing fully press the shutter button. Doesn't work if you're using the continuous auto focus though.
     
  5. Doylem macrumors 68040

    Doylem

    Joined:
    Dec 30, 2006
    Location:
    Wherever I hang my hat...
    #5
    Focussing was so tough in the pre-digital age. We looked through the little hole in the back of the camera, and twisted the black thing in front 'til everything looked sharp. Ah, memories... ;)
     
  6. Cliff3 macrumors 65816

    Cliff3

    Joined:
    Nov 2, 2007
    Location:
    SF Bay Area
    #6
    Search your manual for focus lock. For example, when shooting with my AF in single servo mode, once focus is acquired it is retained until I try to reacquire it. I can then recompose the photo without focus being affected. If I am in continuous servo mode, then pressing the focus lock button causes focus to be retained while I recompose (although I really should not be using continuous servo mode if I am shooting this sort of image).

    (and FWIW, some bodies allow you to decouple auto focus activation from the shutter button)
     
  7. leighonigar macrumors 6502a

    Joined:
    May 5, 2007
    #7
    I had a discussion today with someone (only a year younger than me) who was trying to describe some lenses he had, can't remember the terminology but, after some stumbling I realised he was talking about an aperture ring... as if it was an oddity! I found that somewhat amusing! All this EOS and AF-S!
     
  8. TheReef macrumors 68000

    TheReef

    Joined:
    Sep 30, 2007
    Location:
    NSW, Australia.
    #8
    Or you could disable AF on half way press and reassign it to another button, so you only need to move the camera once for the initial focus.
     
  9. RedDragon870503 thread starter macrumors 6502

    RedDragon870503

    Joined:
    Sep 6, 2006
    #9
    Wow. Thanks! Lots of info to absorb and practice.

    I do truly appreciate all the responses.
     

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