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QPcard™ 102
The QPcard™ 102 is a gray card for calibrating digital cameras and checking exposure.
Description
The QPcard™ 102 consists of 4 squares of ink applied to a cardboard substrate.
Notes
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.
Data
|
Name
|
Spectrum
|
| Dark Gray |  |
| Mid Gray |  |
| Light Gray |  |
| White |  |
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™.
Updated 17.4.2007
Copyright ©2007 Robin D. Myers, all rights reserved.
