Journal of the Asiatic Society of Bengal, المجلد 47،الأعداد 1-4Asiatic Society of Bengal, 1878 |
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الصفحة 62
... Photographic methods can never entirely take the place of lithography or engraving by hand , either for public or private purposes , but their use may be advantageously extended . Those who wish for fuller details may con- sult the text ...
... Photographic methods can never entirely take the place of lithography or engraving by hand , either for public or private purposes , but their use may be advantageously extended . Those who wish for fuller details may con- sult the text ...
الصفحة 64
... photographic effect when reproduced . On account of the difficulty of photographing certain colours so as to produce the same effect as in the original picture , the best results will be produced from drawings specially prepared in ...
... photographic effect when reproduced . On account of the difficulty of photographing certain colours so as to produce the same effect as in the original picture , the best results will be produced from drawings specially prepared in ...
الصفحة 65
... photographic printing . In order to obtain the most satisfactory results for photolithography , photozincography , or any other process specially applicable to line subjects , the negative must be perfectly sharp all over , free from ...
... photographic printing . In order to obtain the most satisfactory results for photolithography , photozincography , or any other process specially applicable to line subjects , the negative must be perfectly sharp all over , free from ...
الصفحة 70
... PHOTOGRAPHIC PRINTING ON SENSITIVE PAPERS . The processes under this head may be divided into three classes- First : -Those in which the sensitive papers are prepared with salts of silver and the results are not permanent . Secondly ...
... PHOTOGRAPHIC PRINTING ON SENSITIVE PAPERS . The processes under this head may be divided into three classes- First : -Those in which the sensitive papers are prepared with salts of silver and the results are not permanent . Secondly ...
الصفحة 72
... photographic arrange- ments , but besides being limited to the reproduction of copies on the same . scale as the original , it labours under the disadvantages of expense and want of permanency common to all the silver printing processes ...
... photographic arrange- ments , but besides being limited to the reproduction of copies on the same . scale as the original , it labours under the disadvantages of expense and want of permanency common to all the silver printing processes ...