I went out the other day to test my new 45mm wide angle lens for my Mamiya 645. Since I enjoy shooting doors and windows, I shot this very colorful one. Mamiya 645E tripod mounted, 45mm f2.8 lens, f8, 1/30 sec, 120 Fuji Provia 100 film, scanned at 1600 dpi. I was about six feet from the door. The lens appears to be working just fine.