Hi Brenda... I thgought about two things... 1) Why not ask the minister about it firsthand instead of worrying. If he's a good guy maybe he is used to blinding lights lol. He should be pretty happy about the couple wanting the event commemorated. 2) If you had a spotlight I don't think people would be offended. Once you get your shots done.. you could relax. 3) You could do adjustments on levels to playdown the dark /shadowy environment. Don't know if you had thought of these??? cheers