Heres the back story, I purchased a few MV72's to replace some exisiting cameras on site, security installer was working through them and all was going well until one camera wouldn't display an image, all I would get was static or a white screen.
I played with the image quality, zoom & focus as well as restarting the camera and cycling POE to no avail.
Then came the fix which was simply adjusting the aperture settings kicked it into life. What I suspect happened was at the factory the aperture was set to something outside of the standard range and me adjusting the setting bought it back into range.
So hopefully this helps anyone else out if you come across the same issue.