ANSI ESTA-E1.28-2011 pdf download Guidance on planning followspot positions in places of public assembly
1 Introduction
1.1 Purpose The purpose of this document is to offer guidance and to make recommendations for the placement and arrangement of permanent followspot positions in places of public assembly. Information in this document is not intended to conflict with any federal, state or local codes, statutes, ordinances or regulations, or to replace competent professional advice.
1.2 Scope This document makes recommendations for the operational and functional aspects of permanent followspot positions within places of public assembly, including the determination of their location within the venue, their physical space requirements, and the safety considerations associated with their use. The scope of this document includes accessibility and environmental concerns, but only to the extent that these concerns relate to (a) the location and configuration of followspot positions, (b) the working environment created by these areas during their intended use, and (c) the working environment created during other activities incidental to their intended use. Temporary followspot positions are not included in the scope of this document.
2 Definitions
2.1 followspot: A manually operated spotlight intended specifically for illuminating moving objects or performers.
2.2 followspot position: A purpose-designed, permanently located space or platform, specifically intended for one or more followspots.
2.2.1 followspot booth: A followspot position that is an enclosed room or space specifically intended for the placement, use, and operation of followspots.
2.2.2 followspot platform: A followspot position that is an open-sided platform specifically intended for the placement, use, and operation of followspots.
2.3 obstruction: Any interference to the movement of the followspot, its operator, or any interference in the path of the followspot light beam, between the intended followspot position and the performance area, whether predictable or not. Examples of physical obstructions include building structural framing elements and any equipment attached to the building structural framing elements.
2.4 pan angle: The included angle formed by the followspot’s horizontal limits of movement, measured at the followspot’s beam centerline.
2.5 qualified lighting specialist: A person who by possession of a recognized degree or certificate of professional standing, or who by extensive knowledge, training, and experience, has successfully demonstrated the ability to solve or resolve problems relating to live event lighting using followspots.