Illuminating Engineering Society, Association of Public Lighting Engineers (Great Britain) · [London] · leaf 50
. amperes beingused, the lamps being fixed at a distanceof 6 feet from the model. Experimentswith a number of other types of lampswere made and the results in this casecompared quite favourably with thoseobtained by other lighting units. The foregoing result- are of interestin view of the… … Fig. 5. Bte. <>• Photographs taken by light of a 1,000 candlepower mercurj vapour lamp at close quarters and at a distance. As the question has been raisedregarding the appearance of faces andclothing in photographs taken by thelight of the mercury vapour lamp itmay also be of interest to…
Lighting
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