Measurement is engineering. Engineering is the foundation of video, television, film and the cinema: in fact, everything to do with moving pictures. But many who work in the industry are not engineers. Many get caught up in a technology for which they are ill-equipped to deal. So where do these people begin? The intention of this small book—miniscule compared to the magnitude of the subject—set out to explore the system step by step, from bulb and battery, through early messaging, to first pictures, and on to where we are today.

A tall order. Yet seven years after the first drafts experimented with how to introduce video measurement to those who never expected to have the need to know, I am still being told: ‘Take nothing out. Just ...

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