カメラレンズの焦点距離とは？計算方法もセンサーサイズごとに解説

The magnification m , the image position v and focal length f are related to one another by the relation :

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B. How is magnification related to image distance (proportional, inverse, etc.), and at whatimage distance is the magnification equal to 1? How does this value compare to theobject distance at the same magnification?C. what is the mathematical relationship that relates magnification to object and imagedistance?

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