South side of Chicago: This was an extraordinary factory--like entering the 19th century. It is a foundry used for shaping and refining large metal disks. It was easily 95 degrees in the plant and noisier than most. My assistant followed me around with two 1000 watt hot lights which we used to bring out at least some detail in the foreground of our photos. The contrast was extremely high between the super bright red hot objects and the nearly dark surroundings. Plus the operator was moving quite quickly as he pushed the objects in and out of the machinery. Hard to catch him at a moment that worked visually.