Hi all. I have an issue with my 6D. I can see an artifact in the viewfinder but this does not show up in any photos taken. I have taken a photo on my phone through the viewfinder and outlined it. It is just above the far right autofocus point.I thought it might be a hair on the viewfinder and tried to clean it. This did not remove or even move it. Is this within the camera? If so any ideas how I can shift it or should I take it to a camera shop and have them take a look. I don't want to void the warranty!
This is not the kind of photo I envisaged on posting in this forum