Focus issues

Discussion in 'Professional Video Production' started by dmdsafe, Oct 23, 2007.

  1. dmdsafe

    dmdsafe Guest

    I have a Sony VX-1000 with focus issues. It will be turned to auto
    focus and when I set it on a table at the edge it will not focus on
    the other side of the room. I can manually focus it on something super
    close but after i switch it to auto everything is out of wack again.
     
    dmdsafe, Oct 23, 2007
    #1
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  2. So is it related to "on a table at the edge"?
    Does it do the same thing in the same position
    but mounted on a tripod? Are you sure you not
    occluding some infrared sensor, etc?
     
    Richard Crowley, Oct 23, 2007
    #2
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  3. dmdsafe

    Pat Horridge Guest

    Sounds like optical misalignment.
    I presume you can't manually achieve the normal full range of focus. ie from
    infinity to close up.
    If you can manually do that then the lens is ok it's justt he auto focus
    gone to pot.
    If however you can't actually manually achieve the correct focus the auto
    focus won't have a hope.

    Camera been dropped or bashed recently?
     
    Pat Horridge, Oct 24, 2007
    #3
  4. dmdsafe

    dmdsafe Guest

    the owner uses it for skateboarding so i expect its been bashed quite
    a few times.
    I can manually focus it to what i believe is half of the range. That
    is when at full wide zoom i can get it unfocused then almost focused.

    ex.
    blurry-------------focused---------------blurry
    x---------------------x-|-----------------------------

    I can manually adjust it between the x's


    I was thinking along those lines(misalignment) whereas something
    inside can't be electronically controlled due to blockage inside.

    Have you had good luck fixing this problem pat?
     
    dmdsafe, Oct 26, 2007
    #4
  5. dmdsafe

    Pat Horridge Guest

    Not on that particular camera but it's not uncommon for the internal lens
    elements to be jarred and drop out of position.
    It may simply be a massive back focus problem or an actual lens broken
    issue.
    Eitehr way it's not going to be cheap. Backfocus can be adjusted if you dig
    in deep but a mechanical lens problem will almost certainly require a
    replacement.
    I'd go for the Sony fixed price repair. I suspect in your case you'd be
    getting a bargin.
     
    Pat Horridge, Oct 26, 2007
    #5
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