Another recent thread mentioned one of the professional hand-held light meters having a wildly non-linear response to color temperatures when reading at other than at the calibration temperature, or scenes dominated by one color.
Using a Nikon DSLR would be preferable insofar as the 1003 pixel RGB metering array is arguably the most accurate metering regime ever produced. Spot metering is also RGB and it's extremely precise on all my Nikons; I have constant-aperture lenses and routinely calculate exposures for 4x5 color transparency films with them. The D200 is what I tend to use most as it has a lower base ISO and since most of the films I use are either ISO 100 or 160. The histogram gives me a sense of whether the dynamic range of the scene fits a particular emulsion at a glance.
For color neg film, such metering precision is vastly overkill. My battery-free 1948 General Electric DKW58 selenium meter is easily good enough until 15 minutes past sunset. Guessing Sunny-16 off the box-top is usually close enough from sun-up to sun-down.
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