D90 Auto Focus Point control

Discussion in 'Photography Beginners' Forum' started by Joshua_Lee, Sep 13, 2010.

  1. Joshua_Lee

    Joshua_Lee TPF Noob!

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    Is there a way to control the AF points? I continually have to shoot in manual because I can't seem to initiate the AF point that I want. Not that shooting in manual is a bad thing, there are just some situations where i need auto focus fast.

    Cheers,
     
  2. Derrel

    Derrel Mr. Rain Cloud

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    Do you use the 4-way controller on the back of the camera?

    Have you read the manual? What does the owner's manual say about selecting the AF area in use?
     
  3. mwcfarms

    mwcfarms No longer a newbie, moving up!

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    Yes there is, its in the manual page 50s somewhere or under the menu with auto focus points etc. You can change it from 3d tracking to single point to dynamic I believe.
     
  4. SrBiscuit

    SrBiscuit TPF Noob!

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    rtfm.
     
  5. Fleetwood271

    Fleetwood271 TPF Noob!

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    If you prefer to force the D90 to focus with just one specific sensor, go to MENU > Custom Setting Menu > a Autofocus > a1 AF-area mode and select Single Point.
     
  6. sobolik

    sobolik TPF Noob!

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    I have a D90 and am quite confused by your question. Therefore I must ask a question rather than give an answer though I could fire away. I normally hate it when questions are asked in response to questions but it seems the better choice to ask the following.

    What exactly is it that the D90 is failing to do that requires you to override the auto focus? Are you always doing the same sort of photography such as food or product?

    Again. What is the reason you are compelled to override the auto focus?
     
  7. Joshua_Lee

    Joshua_Lee TPF Noob!

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    Yes, I have read the manual, but at the same time I am not a tech freak either. I guess I should have worded my question differently.

    When shooting portraits I want to know what the best auto focus setting is. These are the auto options. Which do you all prefer for portraits. I feel I am constantly having to press the auto focus button down in order to get the right focus point to focus.
    [SIZE=+1]
    [/SIZE]

    [SIZE=+1]AF-S[/SIZE] (AF-Single) ​
    In AF-S, the D90 focuses once, and locks until you let go of the shutter and press it again. ​
    [SIZE=+1]AF-C[/SIZE] (AF-Continuous) ​
    In AF-C, the D90 constantly tracks focus as your subject moves in and out. ​
    [SIZE=+1]AF-A[/SIZE] (AF-Automatic)


    Which do you find works best?


    Cheers,
     
  8. benlonghair

    benlonghair TPF Noob!

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    It should just be the D pad on the back. At least that's how the D60 is. IIRC you might have to change a setting in the menus to allow you to manually control the AF point, but that should be easy enough to find after reading the manual.
     
  9. IgsEMT

    IgsEMT No longer a newbie, moving up!

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    AF-S - portraits (and I use it for reception, dancing, etc)
    AF-C - sports, action/movements back&forth (not left to right - thats AF-s)
    AF-A - never. But thats me.

    Good luck
     
  10. Joshua_Lee

    Joshua_Lee TPF Noob!

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    Thanks. Now that is what I was looking for. I will try switching it to AF-S and play around with it.
     
  11. KmH

    KmH Helping photographers learn to fish Supporting Member

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    Page 54 of the D90 users manual is pretty clear and certainly not very technical:

    Be sure and read page 55 since it discusses the limitations of AF.

    Focus point selection is covered on page 56 and discusses the options for focus area mode; single point or dynamic.

    So you must make 2 selections, focus mode and focus area mode.
     
  12. Joshua_Lee

    Joshua_Lee TPF Noob!

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    Thanks I am glad to know someone is able to define what is technical to me and what is not. You have a true gift! :D
     

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