The kit of 3 sample cards - white, black and 18% grey. The cards can be used for set white balance, or for proper color correction during computer postproduction. Small size of cards allows to keep them in photo bag or in a pocket. Cards are lined with water resistant coat.

Grey card 18% is used as color source for proper settig of white balance and exposure. Used together with white and black card allows to evaluate contrast of photo.

White card can be used as source of neutral white when white balance is set manually.

Black card  used together with white and grey card allows to evaluate contrast of photo.

Dimmensions: 130 x 100 mm.

The kit includes leash with snap hook for keep together all three cards.