Trust me I have this same conversation over and over in real life as well. So person asks, "What do I do about shooting a wedding during the ceremony in a dark church. Answer buy a long zoom lens with anti shake.... then run your iso up to 32oo... Get whiz Mr Bill, there was a time when film speed didn't go any where near that high.... there were no anti shakes lenses.... not really any zooms either and we STILL managed to shoot shots during the ceremony. How did you do it, you might ask.... A solid lens of 200mm and under in my case. I never shot a wedding in the national cathederal... On a damn good tripod... With an iso 160 cps film... How in the world did you avoid movement you ask.... Sometimes you didn't mostly you did. You would be surprised how many times in a wedding everything is still for a 1/10 of a second even longer.... I forget what its called now, since no one uses the term, but in every action there is a second when nothing is moving. Lighting a unity candle, when the they are trying to get the candles lit, they are standing very still and the candle has almost no shake. The ceremony is lousy with moments like that. If you look at the old wedding albums from the time before all the modern stuff, you will see that it was possible to do all back then without all the cute toys of today. Nothing wrong with toys at all guys, it just isn't the only way to do things.