This diagram shows the area of a Super 16mm camera frame that the viewer will eventually see when screened at an aspect ratio of 1.33:1,1.66:1,1.85:1.
The aspect ratio of the picture frame of a Super 16mm negative is 1.66:1.
When shooting Super 16mm for blowup to 35mm, the cameraperson should compose the scene for wide-screen projection. A properly composed Super 16mm negative should produce a 35mm negative having an aspect ratio of 1.66:1. Projecting a print made from this negative at 1.85:1 will crop equally the top and bottom of the picture frame. If important image information is eliminated, vertical scanning can be used in making the 35mm negative. Blowup negatives that are scanned for a 1.85:1 aspect ratio require a frame line which fixes the desired aspect ratio. Vertical scanning in Super 16mm should be avoided because foreign prints are screened at a 1.66:1 aspect ratio.
This aspect ratio enables you to show all the information recorded on the Super 16mm negative. Television and standard 16mm prints show the picture information in a 1.33:1 aspect ratio. The Super 16mm image, in order to be converted to this aspect ratio, must sacrifice part of the width of the frame.
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