Leaving No Stone Unturned

William T. Plummer

Shortly after the Polavision instant 8-mm color movie product was introduced in the late 1970s, there was a clamor to add sound-recording and playback capability. We were restricted by two technical issues that were unusual in the industry. First, our 8-mm film was kept in a sealed cassette that was never opened during exposure, processing, and projection and offered no apparent access for a recording head. Second, our relatively stiff polyester film base would not readily conform to the shape of a magnetic head to provide the tight clearances needed for quality sound reproduction.

Access to the full text of this article is restricted. In order to view this article please log in.


Add a Comment

comments powered by Disqus