Is this rude?

I’m getting married and hired a really good photographer and am wondering if it would be rude if me to ask people to not take any pictures or videos during the ceremony? I want to have them tell the guests when they come in but don’t want to come off as an asshole. My reasoning is because I don’t want any phone up in the air ruining my professional photos. People can take pictures at the reception I just don’t want them to at the actual ceremony. I’m just wondering peoples opinions in this. I figured if they want pictures from the wedding they can wait until I post the professional ones on Facebook or send to them. My photographer also takes a video of the whole thing as well