Hi Snowy, Just bought a MacBeth chart (the original 24 swatch variety) today, but thinking about the whole issue of white/grey balance and colour casts etc, I just wonder if it matters a tinkers' **** what white balance is selected at the point of shooting as (by definition) the RAW file is a pure record of what the sensor actually sees without any adjustment (I've heard it called a digital negative). If this is the case, providing exposure is correct on the MacBeth chart, I can see that the grey swatches would provide a means of obtaining neutrality and determining tonal range. If, however, the selected white balance on the camera acts like a means of changing the "film" type (eg like "tungsten" or "daylight" film) even on RAW image files, then the correct choice of white balance on the camera must be useful in eliminating the bulk of any colour cast at the outset, leaving you to "fine tune" the image netrality, tonal range and colour balance in the RAW conversion process, or even later in Photoshop. Yours, still deliberating, Malcolm
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