I just used the 200mm camera. As a side-note, the entire image all 3 map/models- were built as seperate models by me and co-worker James Hendricks over a two week period. When it came time to render, I thought that I would render them as seperate files and composite the results but after the third try I gave up because the perspectives never matched up. So I brought all 3 models into one file and rendered everything at once. We just got new computers last month (dual 2-ghz G5, 3 gigs of ram, fastest Radeon card they make for the Mac) so I figure, no problem. Wrong. This file brought my machine to it's knees. Moving objects around became a test of patience but rendering went okay.