1. Camera settings for Canon & Nikon DSLRs
Depending on the type of flash that you're using, you'll need to adjust your shutter speed to match.
Most flashes require a shutter speed between 1⁄160–1⁄200.
2. Using a flash
The best way to run your photo booth is to use a flash to make sure that your photos are bright and evenly lit.
Some cameras come with an on camera flash – these work great for most small social events.
If you want your photos to REALLY stand out, add an external camera flash to your camera via a hot-shoe mount.
To create beautiful even light that makes your guests look stunning, invest in a small softbox. It's well worth the small investment to get amazingly lite photos.
Using a flash will also give you more consistent color and look whether inside or outside, day or night. With a flash, you'll get a more consistent image during the day or night.