Andrew Liu wrote:
Does anyone have any suggestions on how to photograph a church wedding
without using a flash? The church's existing tungsten lighting is
relatively dim even during the day. Any and all suggestions are welcomed.

One thing needs clarifying, is the restriction permanent, or only during
the actual ceremony. A lot of ministers do not like the flash going off
in their face while they are trying to concentrate on what is happening.
Okay, so that leaves you a few options:

1) Stage a few shots, after the wedding, with the couple, this may let
you get other points of view that you would not normally be able to get.

2) Be honest tell the couple that there will not be many shots of the
ceremony, due to a lack of light. Suggest another location for photos,
if the wedding is at a time when it's warm outside then a park or other
locale can give you some good opportunities...... Otherwise there may
be a room somewhere you can use.

3) Talk to the churches minister, trust me, it's unlikely to be the
first wedding, the minister may be able to tell you what other
photographers have done in the past.

W