You had me worried there for a moment.  I remember reading about the histories of the various problems and how so many scientists argued against having cameras on board (because they were "unscientific" and weren't there to address any specific hypothesis, rather just there to see what they could see) but the "PR" guys at Nasa (including, on some of the missions, Carl Sagan) forced them to put the cameras on.  Of course, it seems to have turned out, time and time again, that the cameras gave the most useful information every time.