I just watched the film about Edward Burtynsky, called "Manufactured Landscapes." In some scenes, he is using what looks like a linhoff field camera of some sort....4X5 for sure...I am completely unfamiliar with this brand. The camera seems to be upside down on the tripod...where the bed is at the top, over the lens instead of in the usual place. The camera also seems to have some sort of grip attached. Does anybody know what camera it is?