MORE ON DISTORTIONS BY FOCAL-PLANE SHUTTERS

Large-scale air photographs are often obtained with reconnaissance cameras which have focal-plane shutters. Normally these cameras are mounted in such a way that the shutter moves in the same direction as the aircraft. For stationary objects, this causes an enlargement of the photographic scale in the direction of the shutter movement. This distortion might introduce significant errors in measurements taken from large-scale air photographs. A graph is given which permits easy determination of relative scale distortions. /Author/

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  • Corporate Authors:

    American Society of Photogrammetry

    105 North Virginia Avenue
    Falls Church, VA  United States  22046
  • Authors:
    • Nielsen, U
  • Publication Date: 1975-2

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Filing Info

  • Accession Number: 00095966
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Jul 2 1975 12:00AM