D2X Matrix Metering

Discussion in 'Digital Cameras' started by deBears, Jul 28, 2005.

  1. deBears

    deBears Guest

    I was doing some test shots recently when I found that Nikon seems to have
    somehow changed the algorithm on its matrix metering for D2X. For D1X, the
    matrix metering algorithm will protect the highlights at the expense of
    underexposing the shadow. If there is a differnce of more than 4 stops
    between the highlights and the shadow, we could generally expect the
    highlights to be 1-1.5 stops above the middle grey but the shadow will tend
    to clip.

    As for D2x, I was surprise to find that the camera adopts a middle approach,
    neither protecting the highlights nor the shadow. In fact, it seems to have
    the tendency to overexpose. Switching to Average metering gives me much
    better control.

    I used a Sekonic lightmeter to measure the exposures. Seems to confirm my

    Anyone having similar experience?
    deBears, Jul 28, 2005
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  2. deBears

    [BnH] Guest

    Try loading sReala 2 custom curve in your D1x. It somehow bring new colours
    to my aging cam :D

    [BnH], Jul 28, 2005
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  3. deBears

    Andrew Haley Guest

    Why is that? Only a stop or two between mid gray and the highlights?
    I haven't noticed much difference: IME over-exposure is pretty rare.
    But matrix metering is a complicated proprietary algorithm, and so I
    can't quite tell what your circumstances might have been.

    One thing you do need to watch if you're using JPEG: the default D2x
    tone curve is contrasty, too contrasty for me. To get more latitude,
    set "Tone compensation" to "less contrast" and leave it there.

    Andrew Haley, Jul 29, 2005
  4. deBears

    deBears Guest

    Ya. Will try that out. Thanks.

    deBears, Jul 30, 2005
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