1. A jig for supporting a plurality of cameras, comprising: a. a platform; and b. a plurality of brackets, each connectable to a respective one of the plurality of cameras and secured to the platform in an arcuate array; wherein a first bracket in the plurality of brackets is immovably secured to the platform at a center of the arcuate array, wherein a set of second brackets among the plurality of brackets is pivotally connected to the platform on a left side of the first bracket and pivotable toward the first bracket, wherein a set of third brackets among the plurality of brackets is pivotally connected to the platform on a right side of the first bracket and pivotable toward the first bracket, and wherein each bracket in the second and third sets of brackets is secured to the platform at no less than two locations, in which a first of the two locations provides a pivot point.