Seiler Instrument’s Planetarium Division is the sole distributor of Carl Zeiss Planetariums in the United States and Canada. Over 600 Zeiss Planetariums around the world testify to the success of Zeiss products for providing the most realistic night sky possible and for surpassing simulation, educational, and entertainment needs. If you are planning a new facility, replacing an old projector, or updating existing Zeiss equipment, Seiler can help. Seiler Instrument can assist you in coordinating your entire Zeiss planetarium package, from dome size to seating arrangements, from auxiliary projectors to computer software, lighting and sound systems, and more.