| 摘要 |
PROBLEM TO BE SOLVED: To provide a multiple exposure camera capable of obtaining a natural and beautiful blurred image by using what is called an apodization effect in the constitution of a general camera where a diaphragm mechanism is set to a specified diaphragm value before starting exposure, a shutter mechanism is actuated in a state where an aperture diameter is fixed, and the diaphragm value is not changed in the midst of exposure. SOLUTION: Luminous flux 4 from a background subject passes through a diaphragm 2 in an open diaphragm state shown by a solid line or the minimum diaphragm state shown by a broken line and is transmitted through a photographing lens 1 and forms an image at a point P1 on the front side of a film surface 5, so that the blurred image with a blur circle is formed on the film surface 5. The diameter of the blur circle in an open diaphragm state at such a time is defined as δ1 and the diameter of the blur circle in a minimum diaphragm state is defined as δ2. By superposing the respective blurred images having the diameters δ1 and δ2 by multiple exposure, exposure is synthesized as shown by a graph on the right side, and an effect that the contour of the blurred image is made gentle is obtained, and then a blur condition is adjusted. |
