Abstract: A photographic studio apparatus for retaining a background sheet in a desired curvilinear configuration in relation to light sources for illumination control devices is disclosed. The apparatus includes a support stand having an elevated mount to which an upper retainer is coupled. The upper retainer secures to a first end of the sheet and the coupling allows the upper retainer to be disposed in a vertical plane independent of the vertical plane of the elevated mount. The apparatus includes glide mounts, pivot blocks and pivot clamps, for providing an articulated mount and adjustable arm, and structural support members.