Tech pan, gigabit, there is only so far you can go in 4x5 before moving up in format. Eight miles is a long way. I just thought of an artist that has performed this kinda sharpness - Clifford Ross - http://www.cliffordross.com but I don't think this information is on his website though. I went to his Blindspot lecture last month and he demonstrated this kind of sharpness, it seems he took off a year to design his own ULF and went to schneider with an optical engineer and hand selected lenses for this camera. Hope this helps!