QPcard™ 102

The QPcard™ 102 is a gray card for calibrating digital cameras and checking exposure.


The QPcard™ 102 consists of 4 squares of ink applied to a cardboard substrate.


The ink appears to be silk screen printed onto the substrate.

The paper substrate contains a fluorescent brightener but it does not appear to effect the patches.


Dark Gray
Mid Gray
Light Gray

Four measurements were made for each patch and averaged for the spectra. The measurements were made with a GretagMacbeth Spectrolino® equipped with a D65 filter. A black backing was used behind the card. The spectral data was acquired, averaged and analyzed with SpectraShop™ 2.

Updated 17.4.2007

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