chevron-left home Glossary of over 1000 photography terms ETTL metering Evaluative through-the-lens, a type of flash metering. ETTL, ETTR Previous Next EV 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