I have the feeling my shutter is inaccurate on my 7D. I'm wondering if this is a common issue, or should I have my 7D body sent in for repair.
The last few times I've shot near fluorescent lights I am getting horizontal banding lines typical of shooting with the wrong shutter speed through my frame even though my shutter is at 60 - dialling the shutter up or down only makes the banding worse. The first few times I saw it I figured it was due to an issue with the ballast of the light fixture or the tube itself.. But I have been seeing the issue far too often for comfort. Also, powering my camera off, then on again at times seemingly softens, or worsens the problem.
Anyone else seeing issues with their 7D shooting @ shutter 60 near tubes?