Got a situation here - I need to be able to produce images of archaeological excavation pits. The size on these things is 8 meters by 8 meters. The challenge is to raise a camera above it, photograph downward, and provide visible resolution down to 1 centimeter. This will require a VERY wide lens. I've found that at a 35MM camera with an 18MM lens at 9.5 meters away will encompass 8 meters by 8 meters - but the resolution, no surprise, is useless. So I may need medium format. Cost might not be an issue; I may be able to gain access to high-end gear ( like a Hasselblad H3 digital setup ). I know that the 6 x 6 format of a Hasselblad is better suited for that than a 645 like a Pentax or Mamiya, but I will still need to raise the camera pretty high to do so ( a platform has already been devised to raise a camera to 10 meters. Shorter height would be better, though ). Assuming a 9.5 meter distance from the surface, do any photo.net people know if medium format or high end digital can resolve a 1 centimeter increment? ( tack sharp resolution isn't required here, by the way ).