Kodak Gray Card (gray plate) Set

Kodak Gray Card (gray plate) Set Details KODAK GRAY CARDS Kodak Gray Card (gray plate) Set 4 * 5 inches an 8 * 10 inches two origin and Packaging: Origin new authentic, original box. Both sides of the gray card has the following purposes: 1. gray face: often used to determine the exposure value. 2. flour: generally used to determine the white balance. In the gray surface reflectivity of 18%, this value can be regarded as the reference average metering data. The flour was 90% reflectivity, this side is brought to use white balance purposes. Above 18% and 90% error rate of about 1%. Functional Description Kodak Gray Card: 1. decide the white balance, use flour, into the automatic white balance mode, the alignment of flour gray card, take a photo, DSC will learn in the light conditions, what is the [White ]. 2. determine the exposure value, use the gray side, if there is reflective light meter, light meter can make reference values ??(meter please close gray card), without reflection light meter, you can ZOOM digital camera, so that it covers the gray card shot.