MAKE A MEME View Large Image Ptp p66 img01.png en First illustration on page 47 66 captioned Iris Diaphragm http //www archive org/details/PhotographyTheoryAndPractice L P Clerc 1937 PD-old PD-old Photography Theory and Practice Diaphragm camera part Iris diagram
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Keywords: Ptp p66 img01.png en First illustration on page 47 66 captioned Iris Diaphragm http //www archive org/details/PhotographyTheoryAndPractice L P Clerc 1937 PD-old PD-old Photography Theory and Practice Diaphragm camera part Iris diagram
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