I took this panorama this morning, having cycled 5 miles to the location with the M1+5DII+Sigma 20mm+Feisol tripod all in a backpack. No problems with the hardware - just a procession of clouds passing over my field to hide the sun for a considerable time. A gap appeared at long last so I was able to get some decent shots:

http://www.johnhpanos.com/poppies.html

John