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  • 1
    Electronic Resource
    Electronic Resource
    THE EFFECT OF HAZE AND HIGH SOLAR ALTITUDE ON THE DENSITY OF AIR SURVEY NEGATIVES (1954)
    Oxford, UK : Blackwell Publishing Ltd
    The @photogrammetric record 1 (1954), S. 0 
    Details
    ISSN: 1477-9730
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Architecture, Civil Engineering, Surveying
    Notes: The effect of haze in vertical daylight air photography for various solar altitudes is considered. If appreciable haze is present the density of negatives exposed when the solar rays are inclined to the vertical at angles less than the lens field semi-angle may vary over the field to such an extent that the photographs will be unsuitable for survey purposes. A theoretical investigation is made and practical results analysed. Methods by which the phenomena may be avoided are suggested. The effect on negative density of the variation in shadow length across the picture is also discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1477-9730.1954.tb01009.x
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