Years ago Segate Technologies had a research and development plant here in OKC. They hired us to photograph the plant for their big corporate annual report and other advertising. I drew the short straw and was the one to haul a 4x5 Sinar-P and a very heavy tripod into the plant.
The security guard was paralyzed with confusion. "No cameras were allowed" was his mantra and he had been told to never ever let a camera in. We finally got the Big boss himself to come down to the entrance and tell the guard that we were hired by plant to be there and the guard made the boss sign a waiver of the rules.
I was the lucky SOB to clean and wipe the camera and the 90 MM Super Angulon and get all the film holders ready.
The lens gave me full wide angle view of 90 degrees and with the 4x5 it was super sharp. I had to work my butt off inside the Tyveck monkey suit with a mask and rubber gloves. The clean room had a lot of air moving but I was still sweating like a race horse. I was taking photos of the new secret 2 GB 3.5 inch drive production line.
It took me all day to shoot 6 or 7 photos. They were used on the cover and inside of the Segate Annual report.