top dial won't change aperture or shutter speed!

Started Aug 11, 2009 | Discussions thread
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mangwood New Member • Posts: 14
top dial won't change aperture or shutter speed!

I have a canon 30D. All of a sudden, I couldn't change the aperture when I was in Av mode. Then about a week later, I couldn't change the shutter speed when in Tv mode. That top dial still functions for other needs. Anyone else experience this? What should I do?

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