E-3 Problem

I've just sent my 12-60 back to Olympus as that been playing up with the aperture occasionally sticking, this was giving the same symptoms as you have described so I'm pretty sure it is your lens and not the camera. Olympus charge a flat rate for repair it was £138 inc P&P, still waiting to get it back

Will be interested to find out what your problem is

Cheers Steve
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Website:
http://www.stephenelliottphotography.co.uk