Cameras for time-lapse photography.
Motor-driven, cam-controlled cameras are particularly suitable for simple time-lapse photography. External intervalometers can be arranged to control the duration of each exposure to compensate automatically for widely varying light intensities.
Time lapse photography of clouds.
The equipment and procedures used in preparing more than 15,240 m of 16-mm time lapse movies of atmospheric clouds is described. Such photographic records are of great value in establishing a dynamic cloud census of a specific area. Operational techniques, the support diagrams, and the optimum time intervals in use for different types of records are presented.
PHOTOGRAMMETRY AND ITS USES IN HIGHWAY PLANNING AND DESIGN
PHOTOGRAMMETRY MIGHT BE DESCRIBED AS THE PROCESS OF CONVERTING PHOTOGRAPHS INTO CONTOURED TOPOGRAPHIC MAPS. FORMERLY GROUND SURVEY METHODS WERE CONSIDERED THE ONLY RELIABLE MEANS OF OBTAINING ACCURATE TOPOGRAPHIC INFORMATION. IT IS NOW POSSIBLE TO DEVELOP TOPOGRAPHIC MAPS OF SPECIFIED ACCURACY BY MEANS OF AERIAL PHOTOGRAPHS WHICH ARE THEN SUBJECTED TO A SERIES OF PHOTOGRAMMETRIC PROCESSES SO THAT MAPS MAY BE DRAWN AT SCALES USEFUL IN HIGHWAY LOCATION AND DESIGN. /AUTHOR/