Cine-film projection : a practical manual for users of all types of 16-mm. (1952)

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Preface to the Revised Edition The success of the first edition, coupled with the extraordinary and rapid developments in every phase of narrow-gauge projection, has made another printing inevitable. The reader will find that almost all theory has been ruthlessly discarded, the whole now being designed to cater for the practical minded. New features include practical instruction on Dual Projection, Arc Projection, Sound Conversions and Sound Test-films, Methods of Testing Screen Brightness, etc., and a great deal of similar information which is specially designed and planned to help the reader with no previous knowledge of the subject. The author and publishers fully realise that a certain amount of information has been omitted. This is because it was necessary to prevent digressions into the realm of pure science, and to provide only that information required by the reader who wishes to become proficient in projection in the shortest possible time. There are no superfluities — no mathematical calculations to be made before the reader knows what the author means to convey. And where the information could confuse some readers, there you will find an illustration. A notable omission is the List of Manufacturers and Film Libraries. But the truth of the matter is that we simply couldn't bring this list up-to-date without usurping the function of the year-books. Such a list today would take more than 200 pages and require continuous revision. So we have listed the year-books instead ! The list of Acknowledgements has also been enlarged, for it was found necessary to apply for information to a large number of equipment manufacturers so that both revision and additions could be made in the text. A special acknowledgement, however, is now paid to Mr. R. H. Bomback for his valuable assistance in checking the manuscript and making a number of worthwhile contributions.