canon 24-70 f2.8 L problem advice needed.
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09-10-11, 09:47 PM
Join Date: Jul 2009
Location: Peak District
Yup, a "Communication error between lens and camera" and from your description, as suggested above, the aperture module. There is a small motor which engages a cogged ring to alter the aperture when the shutter is released - could be the motor, the cogs have become stripped or the aperture blades sticking
If it moves then snap it. And if it doesn't move snap it twice in case it does move!
mark at Photobucket
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