How sloppy is XH A1 supposed to focus at wide setting?

Discussion in 'Professional Video Production' started by peter, Aug 1, 2008.

  1. peter

    peter Guest

    In another thread on the same cam, someone said if you autofocus at wide end
    and then zoom in, don't expect to still be in focus. This hits a nerve.

    I aim the camcorder at an object (door, TV, etc) about 10 feet away and put
    it in manual focus mode, and zoom all the way out. I push the push AF button
    and the display says 2.0 feet, 2.5 feet, etc. I repeated this many times and
    it is always focusing at under 3 feet. If I zoom in more, the focusing
    distance increases. When zoomed to z80 or higher, it reports the correct
    distance 10 feet. It doesn't matter if quick AF is turned on or off.
    Resetting the cam to factory default didn't help either.

    Using another camcorder to look at the focus assist LED next to the lense, I
    see no light emitting out of it.

    After I emailed canon about this issue, they email me back a form letter
    with the procedure to send it in for repair, but did not answer directly
    whether this is normal, and did not suggest an alternate procedure to test
    the focusing mechanism. I hate to ship the camcorder to their repair center
    across many states only to have it returned and tagged "normal behavior" or
    "no problem found".

    Could someone tell me whether this is normal or not?
     
    peter, Aug 1, 2008
    #1
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  2. peter

    Spex Guest

    Why should it hit a nerve? You need to learn how to operate a camera
    effectively.
    The correct way to focus on an object is to zoom in, focus (use the
    focus zoom if necessary), pull out and frame up. That object will then
    be in focus throughout the zoom range.

    I would enroll in a camera course at your local college or university
    and your enjoyment level and productivity will rise.
    Completely normal.

    HD is an unforgiving medium. Sloppy camera work that was masked by low
    res SD cameras is blatantly obvious on HD material. In SD you have a
    huge margin of error in focus compared to HD.

    The XH-A1 is a gem of a camera use it properly and it'll pay you back
    with awesome images.
     
    Spex, Aug 1, 2008
    #2
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