How do you tell if your current photos are stalling sales?

They stall sales if the guest asks what the dish is, or says at the table that it was not the photo. They do not stall it if the menu and the table match and that dish is ordered without an explanation. Show the menu to someone who has not eaten there and note which dish they will not order. In Madrid a dark photo of the signature dish stays up and the order moves to the one people can read. The test lands as a list: dishes that read, and dishes that have to be shot again.