Anyone use the Auto focus selector lock? Why?

Discussion in 'Beyond the Basics' started by gl600, Feb 8, 2010.

  1. gl600

    gl600 TPF Noob!

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    Just like the title... why have you used it?
    I can't imagine a situation where i would want it on lock.
     
  2. PhotoXopher

    PhotoXopher TPF Noob!

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    I use it sometimes... usually when I want to focus and recompose, I'll lock it on the center or center and down one or two spots, focus and recompose.
     
  3. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    I keep mine locked at all times. I don't want the camera choosing which one of the points to use. It doesn't know what I want to focus on.

    I use the centre point about 97% of the time (it's the only cross type sensor on my camera (and only with F2.8 lenses)).
     
  4. gl600

    gl600 TPF Noob!

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    I see...
    @Big Mike: Why wouldn't you just keep your camera set on single point selection?
     
  5. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    Is there a difference :scratch:
    On my camera, I can choose to use all points or just one point.

    All I know is that I don't use the mode where the camera can use any or all of the focus points.
     
  6. IgsEMT

    IgsEMT No longer a newbie, moving up!

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    When I'm shooting, I keep an eye of these things but during family events, when have to give camera to someone, to eliminate user-focusing-error, I lock the focus to center.
     
  7. gl600

    gl600 TPF Noob!

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    i use the same mode, but there is a switch on the back of my D90 (also on the D80, maybe others?) That lock the point selected i.e. you will not be able to change the selected point to a different one. (I.e. if you have the middle point selected and the lock is on, clicking the left arrow on the pad will not change the selected point.)
     
  8. Big Mike

    Big Mike I am Big, I am Mike Staff Member Supporting Member

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    Crazy Nikons :scratch:

    :lol:
     
  9. shmne

    shmne No longer a newbie, moving up!

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    +1 o_O
     
  10. kundalini

    kundalini Been spending a lot of time on here!

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    If I focus with my thumb, then my index finger only has to concentrate on rolling over the shutter release, rather than pressing down on it. This has the benefit to reduce camera shake.
     
  11. PhotoXopher

    PhotoXopher TPF Noob!

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    No, we're talking the focus selector - no AF-ON.
     
  12. kundalini

    kundalini Been spending a lot of time on here!

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    My bad....... I'm still suffering from this past weekend. In that case, no.
     

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