The first time focal ratios were explained to me they were called F.Stops. The bigger the number the more light stopping power the aperture setting had.
The first time focal ratios were explained to me they were called F.Stops. The bigger the number the more light stopping power the aperture setting had.
Photography:first utterance. Sir John Herschel, 14 March 1839 at the Royal Society. "...Photography or the application of the Chemical rays of light to the purpose of pictorial representation,..".
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