The Photographic News, Volume 53William Crookes, George Wharton Simpson Cassell, Petter, and Galpin., 1908 |
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Page 101
... lens - that is to say , the point at which the axis of the lens , if produced , would meet the sensitive surface . In practice much work may be done , and done very satisfactorily , with a single lens . Let us consider first of all ...
... lens - that is to say , the point at which the axis of the lens , if produced , would meet the sensitive surface . In practice much work may be done , and done very satisfactorily , with a single lens . Let us consider first of all ...
Page 395
... lens stop , or diaphragm , is far more of a fine adjustment than is this screw in the microscope ; for it enables the photographer to control the definition , the gradation , the discrepancies of a mediocre lens , and it further allows ...
... lens stop , or diaphragm , is far more of a fine adjustment than is this screw in the microscope ; for it enables the photographer to control the definition , the gradation , the discrepancies of a mediocre lens , and it further allows ...
Page
... lens , F6.3 Iris , leather case , condition as new ; cost £ 15 10s .; accept £ 8 8s . 51x31 Post Card Roll Film , by Voigtlander , rack and pinion focussing , double extension , Voigtlander Collinear Series III . , Anastig- mat lens ...
... lens , F6.3 Iris , leather case , condition as new ; cost £ 15 10s .; accept £ 8 8s . 51x31 Post Card Roll Film , by Voigtlander , rack and pinion focussing , double extension , Voigtlander Collinear Series III . , Anastig- mat lens ...
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