4 of 4 people found the following review helpful
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This review is from: Polaroid Pocket-Sized Digital Grey Card Set With Quick-Release Neck Strap for Digital Photography (Electronics)
I purchased this to use in place of a more elaborate colour checker to use in rough conditions. The "Grey" card is far too blue under D65 light where the card measures 7100 deg kelvin. Not a great deal of use to a photographer.