Not the clearest example I realize Paolo, but I deliberately shot this rather unpretty scene blown out to enhance the aberration on the pole in the upper left hand of the frame. I just needed something down and dirty to show. Although you can’t tell with this pic, the back focus is fine, but the image goes soft with the ND filter. This has always been a problem I’ve noticed with these JVC cameras. I hate using the built in ND filter, but I’m often forced to without lens filters.