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PRINCIPLES OF CINEMATOGRAPHY
16mm SOUND FILM
15mm SOUND FILM
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16mm SOUND FILM
16mm
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16 mm SILENT FILM
16mm SILENT FILM
16mm SILENT FILM
16mm SILENT FILM
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Fig. 126. — Narrow-gauge film dimensions.
Note: it is well realised that 9*5 and 8-mm films have been produced with sound track accompaniment; also that such recording methods as the modern magnetic systems make possible the addition of a second length of film or 'tape' or applying a magnetic stripe carrying an auxiliary sound record.
The picture and film sizes used in each case are seen in Figure 126. Sixteen millimeter sound film is essentially similar to silent film of the same size with respect to width, perforation size and pitch and picture dimensions, the main difference being that the sound film is only perforated along one side of the picture the other side being left complete and providing space in which to accommodate the sound track. The dimensions of the picture in both cases are as follows: Height 7-47-mm and Width 10-41-mm. The dimensions of the picture produced by the 9 • 5-mm film are, Height 6 -5-mm and Width 8 -5-mm -it should be noted that the difference in size between 16-mm and 9 -5-mm pictures is not as great as the difference between the film widths. The dimensions of pictures produced on film 8-mm in width are, Height 3-51-mm and Width 4-80-mm. It must be remembered that standard dimensions have been recommended by the Society of Motion Picture Engineers which cover the camera aperture, the printer aperture and the projector aperture and that the sizes of these