I'm pretty ignorant when it comes to the anatomy of a camera, so bear with me if my diagnosis is completely wrong or if I don't refer to camera parts with the right names.
I have a Canon Powershot A430. I recently had a problem while taking pictures. When I pressed the shutter button to snap a photo, I never heard the click of the shutter(?) inside the lens. It still took the picture, but it came out so bright that the subject was barely discernable, and there were horizontal lines running across the image. This happens every time I try to take a picture in good lighting. If it's dark and I need to use the flash, the picture comes out fine. Digital movies also come out flawless, proving that there is nothing wrong with the lens or LCD. To my untrained eye, it appears that the diaphragm simply will not close, which is why it lets so much light in. Is my hypothesis correct? Has anyone encountered a similar problem? How difficult/expensive is the repair?
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