Whew, what a scorcher it was today. You could see the people in the parade wilting as the day wore on. Canon 7D with new Sigma 70-200 Exposure 1/250" Aperture f/16 ISO 800 No post processing. Used this lens for the first time today after collecting it in HKG. The Lens hood was knocked off in the crush within half an hour and I couldn't find it again It was very challenging to get the shots as I was shooting over people and many umbrellas in servo mode and the parade was moving quickly at times. Also, couldn't get the aperture to less than f/16 to get a better bokeh (blurring to make the subject pop out).