Transcription of TECHNICAL BULLETIN Understanding Aspect Ratios
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TECHNICAL BULLETIN Understanding Aspect Ratios
TECHNICAL BULLETINU nderstanding Aspect Ratios CinemaSource TECHNICAL Bulletins. Copyright 2001 by CinemaSource, rights reserved. Printed in the United States of America. No part of this BULLETIN may be used or reproduced in any manner whatsoever without written permission,except in brief quotations embodied in critical reviews. CinemaSourceis a registered federal information contact: The CinemaSource Press, 18 Denbow Rd. Durham, NH 038243 Understanding Aspect RatiosUnderstanding Aspect Ratios The first thing we want to do is demystify this Aspect ratio is simply a numerical way ofdescribing a rectangular shape. The Aspect ratio ofyour standard television, for example, is 4:3. This meansthat the picture is 4 units wide and 3 units , professional cinematographers tend to prefera single number to describe screen shapes and reducethe familiar 4:3 television ratio down to :1, or just is most likely because they deal with a vastly largernumber of screen shapes than television people do andout of necessity, long ago, jettisoned bulky fractionaldescriptions.
5 Understanding Aspect Ratios Back in the 1950s, the people at CinemaScope came up with a novel solution to the resolution problem outlined above.
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