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The bellows of an adjustable camera can be extended so that the largest film to lens distance is one and one-half times the focal length. If the focal length is 12 cm, the nearest object which can be sharply focused on the film must be what distance from the lens? 12 cm 24 cm 36 cm 48 cm 72 cm

The bellows of an adjustable camera can be extended so that the largest film to lens distance is one and one-half times the focal length. If the focal length is 12 cm, the nearest object which can be sharply focused on the film must be what distance from the lens? 12 cm 24 cm 36 cm 48 cm 72 cm

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The bellows of an adjustable camera can be extended so that the largest film to lens distance is one and one-half times the focal length. If the focal length is 12 c m , the nearest object which can be sharply focused on the film must be what distance from the lens? 12 c m 24 c m 36 c m 48 c m 72 c m

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