. The American annual of photography. the weak illuminationof the reflected light from the fore-ground, which comes throughthe transparent or colorlessJlower part of the screen in fullintensity. The reason that daylight cloud pictures are rare is thatthe strength of the illumination from the sky is many, manytimes that of the partially absorbed and reflected light fromobjects on the ground. If a correct exposure is given to the clouds, then the land-scape is badly under-exposed; if the correct exposure is givento the landscape, then the clouds are literally burnt up fromover-exposure, and no m
. The American annual of photography. the weak illuminationof the reflected light from the fore-ground, which comes throughthe transparent or colorlessJlower part of the screen in fullintensity. The reason that daylight cloud pictures are rare is thatthe strength of the illumination from the sky is many, manytimes that of the partially absorbed and reflected light fromobjects on the ground. If a correct exposure is given to the clouds, then the land-scape is badly under-exposed; if the correct exposure is givento the landscape, then the clouds are literally burnt up fromover-exposure, and no matter how contrasty they may haveappeared to the eye, an unscreened photograph shows only ablank white sky. The Royal Foreground Ray Screen is also very useful forsubjects which are more strongly illuminated on one side thanon the other, as in photographing by the light of a side windowor in a narrow street. By simply turning the dark side of theforeground screen toward the bright side of the object a good,even exposure will No. Diameter Inches Price No. Diameter Tnches Price 0 ^ $ 8 2>^ $ 1 1%6 9 2M 2 for box cameras 10 3 3 1^16 11 3M 4 1^ 12 33^ 5 IM 13 4 6 2 14 4^ 7 2M GEORGE MURPHY, Inc. 57 East 9th Street NEW YORK XXXVI DISTORXO (Pat. Applied for)
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Keywords: ., bookcentury1900, bookdecade1910, bookidamericanannu, bookyear1912
