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15 Cards in this Set
- Front
- Back
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aerial camera
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a camera specifically designed for use in aircraft
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aerial photo-interpretation
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the art and science of studying and identifying objects formed as images on the emulsion surface of the film and evaluating their significance
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remote sensing
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detection, identification, and analysis of features through the use of imaging devices located at positions remote from the subjects of information
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photogrammetry
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the science or art of obtaining reliable measurements by means of the photograph
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F Stop
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a continuously variable circular aperture in a lens which makes it possible to control the quantity of light passing through the lens
f = fL / diameter |
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camera body
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usually houses the drive mechanism, switches, timer, level bubble, handles, etc
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film magazine
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rolls or containers of film which attach to camera body
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drive mechanism
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involves advancing the film and winding or cocking the shutter
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focal plane
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firm, flat surface or backing for the film to obtain exact focal length. Film held by pressure plate or vacuum pressure. Contains fiducial marks, clock, etc. for edge data
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4 types of cameras
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a. single lens vertical
b. multiple lens c. continuous strip d. rotating lens |
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Fixed mounts
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camera fixed solid, cannot correct for tilt or crab, etc
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Adjustable mounts
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camera may be adjusted for various axis rotations and therefore remain level—gyro-controlled
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Density
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degree of darkness evaluated upon the basis of the proportion of light which is transmitted through the film or print
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Contrast
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difference in density between the highlights and lowlights on a negative or print
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sharpness
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the degree to which the edge of an object on the photo corresponds to the edge of the object on the ground. Sharpness is closely related to graininess as well as to contrast and density
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