Architectural Commercial Architectural Residential Aviation Corporate High Tech Hospitality Illustration Industrial Portrait Scientific Still Life Travel Interpro We isolated the welder with more of the tubing he was working on and gelled them purple. The key light for the guy is buried in the pipe he is welding. A long exposure gave us the sparks from the grinder. All Images © Copyright 2009 Yost Photography. All rights reserved. Denver web design by Insyntrix.