It is common for brides/grooms to give directive to guests, in the invitation, so that their day and event will be exactly as they expect. The top two things our brides say they wish they had done: 1. Asking your guests, in the invitation, to NOT use their cell phones are other cameras during ceremony is quite normal and ok to do so. 2. Also asking your guests to wear black or coordinated color to your wedding. This makes for amazingly fluid photography.