If a church ceremony is what you have your heart set on, then you will want to read on.
What I recommend couples do, is to discuss with the church minister about his or her views on photographers taking photographs during the ceremony.
Will the minister allow flash in the church? If the church was built in the last thirty years there is a good chance it has fluorescent lighting (which is not a great light source for photography). If the church is illuminated by fluorescent lighting and the minister doesn’t allow flash inside the church, then you need to check if this will be a problem for your photographer.
I suggest you confirm these questions with your minister too:
1) Are there areas inside the church the photographer is not allowed to take photographs?
2) Are there any times during the ceremony that the photographer is not allowed to take photographs?
Confirming these questions with your minister will give you information to share with your photographer. Chat with your photographer about the church’s policies to see if they will affect what you had visualised your wedding photography inside the church to look like.