This is the first time I did this during a wedding – I set up a photo booth. This uses a set up for which the credit goes to Scott Jarvie, inventor of the “Jarvie Window.” Instead of a 8mm lens I used the Nikkor 10.5 mm Fisheye, modified for full frame, a SB-900 and Ray Ring Flash.
I tethered the whole things to my Powerbook and Lightroom 3, preset a funky “quick Process” and voila, instant feedback provided and a lot of fun. BTW, I added a bit of post processing, a photoshop action, that cuts out the surrounding background and replaces the ring flash with a solid white circle….
Here is the set up, note he is holding the remote release.
It is somewhat hard to correctly expose and focus every image when people are all over the place – TTL does not exactly work in this setting – but that does not distract from the fun!