| 摘要 |
<p>The invention concerns a reference card for the use as a reference object concerning light reflection and colour balance in photographing, which reference card has a neutral grey colour and reflects a predetermined amount of light. The back of the reference card provided with a releasable adhesive and that a number of reference cards are assembled in a pad (1), on a sheet (8) or attached to a strip (7) which is stored in a rolled-up position so that the reference cards are protected from light by each other. The invention also concerns a method of manufacturing said inventive reference card, whereby the colour in question of the card is applied by spraying or painting so that it opaquely cover the card.</p> |
