Churches here are DARK. ISO 1600 2.8 and 1/30 is the ambient reading in many, maybe 2 stops better in some. So ambient light is often no good.
There is another issue that I see about half the time - spot lights pointed at the altar - unless your exposure is brighter you will get shadows from these spots. See my fist shot - the shadow under the bride's chin? That's a spot in the church ceiling. I prefer not to shoot AT the altar for that reason and the old candles and crosses growing from their heads bit is always an issue - some churches have lots of mics on their lecterns and other distractions that drive me nuts. But sometimes there aren't options or the bride demands altar shots.
The softbox I am currently using is assembled all the time. Several companies now make folding softboxes (just like umbrellas). Alien Bee is one -they make a 2x3 softbox. I shoot the receining line while my assistant sets up the light - only one - and pulls up the creche and moves the flowers or other things that we can move at the alter while I adjust the light and camera. takes 5 minutes, 10 max - while the receiving line is going on, while the people empty out, etc. We have set up the light and stand before the ceremony and just put it in a back corner out of the way - so it's just a matter of walk it to the center aisle and plug things in.
We try to use the churche's power, but have an Alien Bee Vagabond battery unit for when we need it. The lights run and recycle just as fast as off the wall power.
I do use an assistant - the best money a wedding photographer can spend IMO! You can shoot and schmooze more while the ass't runs the gear, watches the gear, goes and fetches lenses or batteries or the ladder in the car, etc. Want to take the bride out for a pic? You got someone to go make sure the groom is hiding, etc. And for the formals he helps in posing - it goes faster and looks better.
And by the end of the day I am NOT bone weary tired! Plus I use him to second shoot during the ceremony from the back of the church while I roam about.
This was with two lights so I got some cross shadows, but it shows how some churches make posing at the altar more challenging - railings in the foreground! Yuk!
Back of the church posing works sometimes. It often presents it's own set of challenges - like where to put everyone not currently in the shot!
This was an exceptionally dark church and they had lots of crap on the altar (mics, retractable screens, etc) and itsn't not big up there, but it was DEEP, so that made getting the ambient setting difficult. Shot with an umbrella. And I HATE to see pews in the foreground corners, but sometimes it is what it is.
