In August 2017 I was working at a large oil and gas facility in the Alberta tar sands. The owners were touchy about cameras on site so challenge #1 was smuggling my camera through security coming in to work that morning. Challenge #2 was getting a shot without a filter- the #12 welding lens I was keeping on my desk to serve that task ldquo;mysteriouslyrdquo; went missing that morning as I did my rounds.br/Canon 80D, 70-300 kit lens. F32, 1/8000 second exposure, ISO 100.