Sonar One-Step DATE - 1978 This film demonstrates a new Polaroid camera with an automatic sonar-based focusing system, examining the technology and exploring its development. Music by Donald Specht. 8 minutes. Additional Information Explore Similar Works Films A Communications Primer A Computer Glossary A Report on the IBM Exhibition Center (590 Madison) History Related Products Browse a curated selection of Eames Office products we think you’ll love The Films of Charles and Ray Eames: Box Set $79.99 an Eames anthology $50 Shop All