Aerial photography has
an important role in remote sensing technology. Some important features of
aerial photography are improved vantage point, superior capability to stop
action, increased spatial resolution, broadened spectral sensitivity, improved
geometric fidelity and permanent recording potential. Any type of camera can be
used for aerial photography. The most widely used varieties are single lens
frame camera and panoramic camera. Single lens frame cameras designed to
provide extremely high geometric image quality are known as mapping cameras. They
are also known as metric cameras or cartographic cameras. These cameras consist
of a low distortion lens system which is mounted in a fixed position relative
to the plane of the film. Panoramic cameras view only a comparatively narrow
angular field at any given instant through a narrow slit. Panoramic cameras
consist of a rotating prism, a fixed lens and a flat film plane. Panoramic
cameras were used extensively during NASA’s Apollo missions.
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