Wind. Terrible wind and 56. Tried to go out in the wheatfields to sight infinity on the old farmhouse up the road, on the Hasselblad I had been working on. Had fashioned a GG back to see how well it jives with the screen. Couldn't even get the black cloth over my head. The wind kept blowing me backwards and the tripod and camera kept wanting to blow over. Totally impossible, so I had to come home and watch movies on youtube.