Any OMD users switched from Panny 20mm to Sigma 19mm to avoid the banding?

Hello all

I recently upgraded my EPM1 to an OMD a absolutely love it. The only issue is the banding with the 20mm lens which is a real shame as it's otherwise a great lens. Have any of you switched to the Sigma 19mm for this reason, and if so do you have any regrets?

Thanks in advance.

Andrew

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I'm getting there...