Boston, MA 051811 US President Barak Obama stopped by Boston's South End on May 18, 2011 as he attended a fundraiser at Cyclorama. (Essdras M Suarez/ Globe Staff)/ MET This is about the 5th or so time I've photographed the president and invariably all I end up thinking is : Wow! this man can really work a crowd into a frenzy. He is a gifted speaker, there's no doubt about his linguistic prowess. TECH STUFF: 300mm 2.8, 70- 200mm 2.8, 1.4 TC, ISO 1200, WB: Flouorewcent (whomever light this venue really knew what they were doing.), Aperture : 4.0- 4.5, Speed 200th-320th of a second.