| 摘要 |
PROBLEM TO BE SOLVED: To easily discriminate the difference of an exposure adjusting function in the processes of the recycling and manufacturing of a film unit with a lens. SOLUTION: The various kinds of parts to perform exposure such as a photographing lens 7 and a shutter blade 29 are attached on the front face of an exposure adjusting device 13. A return spring 30 out of them urges the shutter blade 29 in a direction in which an exposure aperture 28 is closed, and a kick spring 37 urges a shutter lever 36 to expose the exposure aperture 28 by kicking one end 29a of the shutter blade 29. The return spring 30 and the kick spring 37 are made of a metal wire rod previously colored in accordance with urging force, so that the urging force of a spring is easily discriminated. Also, a columnar projected part 32 whose diameter is same as that of a diaphragm part 31 is provided, and the diameter of the opening of a diaphragm is immediately discriminated by appearance.
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