Wilsons Quarter Century in Photography a Span Classsearchtermspan Class
Wilsons Quarter Century in Photography a Span Classsearchtermspan Class
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In our eReader you can find the full English version of the book. Read Wilsons Quarter Century in Photography a Span Classsearchtermspan Class Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Wilsons Quarter Century in Photography a Span Classsearchtermspan Class
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would never have been achieved had no more attention been paid to rigid exactitude than is commonly given in the practice of photography ; neither would the marvellous com- mercial production of complicated chemical substances have arrived at its present stage of magnitude and excellence if the strictest watch had not been kept at every stage of the process to insure scrupulous attention to the carrying out of all the necessary condi- tions. But in even the largest photographic establishments h...ow rare is it not to. Find such cases ! How many operators and printers use their thermometers, their hydrome- ters, or the simplest form of burette? Rule of thumb prevails almost universally, with the result of many thousands of pounds' worth of material being wasted beyond redemp- tion. True it is every one knows that in cold weather his chemicals require strengthen- ing, and that in hot weather stains are apt to occur, and some little alteration is made by guesswork to bring things right. , What is required, however, is a set of tables for strengths of various solutions required for different temperatures, a few days' rigid examination of results under such varying conditions as are likely to occur, and such a tabulated statement of them as would enable each to alter for himself the chemicals he is using, or know from their strength and temperature the effects he is to expect, thus establishing the routine of operation on a thoroughly sound basis.
What to read after Wilsons Quarter Century in Photography a Span Classsearchtermspan Class?
You can find similar books in the "Read Also" column, or choose other free books by Edward Livingston Wilson to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
would never have been achieved had no more attention been paid to rigid exactitude than is commonly given in the practice of photography ; neither would the marvellous com- mercial production of complicated chemical substances have arrived at its present stage of magnitude and excellence if the strictest watch had not been kept at every stage of the process to insure scrupulous attention to the carrying out of all the necessary condi- tions. But in even the largest photographic establishments h...ow rare is it not to. Find such cases ! How many operators and printers use their thermometers, their hydrome- ters, or the simplest form of burette? Rule of thumb prevails almost universally, with the result of many thousands of pounds' worth of material being wasted beyond redemp- tion. True it is every one knows that in cold weather his chemicals require strengthen- ing, and that in hot weather stains are apt to occur, and some little alteration is made by guesswork to bring things right. , What is required, however, is a set of tables for strengths of various solutions required for different temperatures, a few days' rigid examination of results under such varying conditions as are likely to occur, and such a tabulated statement of them as would enable each to alter for himself the chemicals he is using, or know from their strength and temperature the effects he is to expect, thus establishing the routine of operation on a thoroughly sound basis.
What to read after Wilsons Quarter Century in Photography a Span Classsearchtermspan Class?
You can find similar books in the "Read Also" column, or choose other free books by Edward Livingston Wilson to read onlineMoreLess
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