chevron-left home Glossary of over 1000 photography terms Grey card, gray card A card with an 18% grey surface, used as a target for taking light readings. Grain Previous Next Grey point, gray point 0-9 A B C D E F G H I J K L M N O P Q R S T U V W X YZ Something missing or spotted a mistake? Please let us know! Back to the top twitter mastodon instagram envelope shopping-basket