Here is another situation requiring a tripod - more specially, two tripods. Neither tripod can be moved during shooting. As with the mirror shot shown earlier, the two images of Tiffany Felisha were combined in Photoshop. It is exactly the same process, except that no mirror was used. Tiffany had to pretend there was another Tiffany on the other side of the tripod:
Tiffany Felisha.