setting shutter speeds to more than 1 second

[sv]

how do you / can you set the shutter speed to a greater value than 1 second?

I'm working on an internal shot of a dark nightclub, and want to set the shutter speed to be something like 4 seconds of exposure.
How can this be achieved with the current settings?

(unfortunately) I'm not a photographer, so does anyone have a good reference guide for how you can adjust the exposure settings properly? I've been using this; but have found it a little hit and miss.

http://www.robert-barrett.com/photo/...alculator.html

[emptyvoxel]

You should be able to set the shutter speed to values of less than one to get longer exposure times.

For example:
.5 = 2 seconds
.25 = 4 seconds
.1 = 10 seconds

Cheers!