Travel Photo Tips: What is metering, and how does it affect my pictures? {Gadling}

Jan 23rd 2011 11:25AM I've been reading your articles. I have to photograph someone's wedding. They weren't able to afford a good photographer at this time and I said I would do it for free. I have a DSLR and I'm very comfortable with outdoor shots. But her wedding is indoors in a church. I was wondernig do you use these aperture/shutter/iso settings when you do church weddings or you use an external flash. I hate using flash in general cause I feel like it loses some of the feel of the picture unless you bounce or diffuse. But I'm scared if I don't use a flash it'll be a blurry when she's walking down the aisle. It's a once in a life time thing and I'm scared to death I'm going to mess it up!! Basically wondering what you do for low light church weddings.