The American annual of photography . on, the great English photographer andeditor, visited America. He made many exposures on filmpacks, and developing them on his return, he wrote in his jour-nal that he had hopelessly over-exposed them all. My actino-meter told me before I had made an exposure that the actiniclight of England was, in general, twice as slow as our light inAmerica, and I had no such failure. In these notes I have in mind only the principle and not thekind of actinometer. There are several upon the market. Afriend of mine is wedded to a scheme in which Solio is histest-paper. I
The American annual of photography . on, the great English photographer andeditor, visited America. He made many exposures on filmpacks, and developing them on his return, he wrote in his jour-nal that he had hopelessly over-exposed them all. My actino-meter told me before I had made an exposure that the actiniclight of England was, in general, twice as slow as our light inAmerica, and I had no such failure. In these notes I have in mind only the principle and not thekind of actinometer. There are several upon the market. Afriend of mine is wedded to a scheme in which Solio is histest-paper. It matters not so you test the actinic strength ofthe light. Two prints are submitted to show that with an actino-meter no extremes are too great to secure full and properexposures. Dove Cot or Wordsworths Cottage in the Lake Dis-trict of northern England, was taken in the rain, which is ausual condition there. The Cloisters of Eremite in Palermo, Sicily, were takenin sunshine so strong that the natives all use large darkgoggles. 238. AN INSTANTANEOUS FLASHLIGHT. GUSTAV DIETZ.
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Keywords: ., bookcentury1900, bookdecade1910, bookpublishernewyorktennantandw
