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1954-55 Theatre Catalog, 12th Edition, Page 20 (xx)

1954-55 Theatre Catalog, 12th Edition
1954-55 Theatre Catalog
1954-55 Theatre Catalog, 12th Edition, Page 20
Page 20

1954-55 Theatre Catalog, 12th Edition, Page 20

mechanisms operating at high speed. Limited information about equipment of photographic techniques for such specialized applications used to be a serious obstacle to progress on important research projects, and a great deal of effort in recent years has gone into the refinement of this particular branch of the art.

The Societyls first contribution was the prompt publication in the SMPTE Journal of all valuable technical material on the subject gathered by the HighSpeed Photography Committtee. From time to time all this material is reprinted in a convenient collection. The most recent of these, High-Speed Photography, Vol. 5, was published in June of this year and includes material that appeared in the Journal during the past year. An indication of the degree of importance attaching to the field and its prominence among subject matter featured in the Journal is the fact that this latest in the series is an ample-sized book of 359 pages.

The Society also promoted a survey of equipment and methods used in 100 research laboratories through the coun XX

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try, with emphasis on needs unfilled by the tools either then at hand or known to be available. Publication of the results has served as a guide to future improvements or research into the field of highspeed photography.


Effectiveness of a motion picture depends on technical details of projection and on viewing conditions in the theatre. Consequently, both factors receive an important share of the Societyls attention, with the practical result that the industry% effortn to improve auditoriums for better viewing are properly related to parallel efforts directed toward bright pictures, larger screens, more color and improved print films. The combined effort is of substantial aid to the exhibitors.

A Screen Brightness Survey in 1948 proved that many theatres got less light than they paid for because tools for alignment of projector optical parts were

not generally available to projectionists.

Independent work on improved light sources was stimulated by the indicated need for more light and regular theatre projection maintenance programs were encouraged. In addition, need for quicker, accurate light measurements prompted development of a new screen brightness meter used on an enlarged survey of projection conditions in more than 100 theatres. Each manager received a complete report on projection conditions in his own theatre. When all data had been collected, a complete tabulation, in which each theatrels identity remained undisclosed, was published with critical comments by the Screen Brightness Committee.

Currently the Screen Brightness Committee is conducting a new survey of projection conditions in drive-in theatres ethus far an area where no screen brightness standard has yet been set. It is expected that the survey will supply the data for the establishment of such a standard.

In both indoor theatres and drive-ins the Committee is investigating the elfects of stray light and unevenness of light

1954-55 Theatre Catalog, 12th Edition, Page 20