Posted by Workbook on 01/31/2012 — Filed under:
Features, Headline, Musing On
By
Laura Barisonzi
My time-elapse photo of the Boston Marathon and the technique I used to capture it are featured in the February 2012 issue of Popular Photography magazine. Here are the 5 steps:
Step 1: Previsualize your photos. Devise a few creatively imagined images, focusing as much on backgrounds as the runners. "I had the idea of a flow of people contrasted with the still cups, so I did some research to locate the most heavily used water stop along the Boston Marathon"
Step 2: Gather Your Gear. For the 4-second shutter speed used here (at f/10, ISO 100). Barisonzi needed a 3.0 neutral-density filter and a small tripod. Because the filter produces an almost black viewfinder, she had to compose and focus before threading it on.
Step 3: Find your angle. By selecting a low vantage point, Barisonzi was able to make the in-focus cups appear more prominently in her composition. (To get that low angle, she had to lie prone on the ground with an assistant standing along side to prevent her from being trampled.)
Step 4: Prep the site. To the amusement of many bystanders, Barisonzi spent a few minutes rearranging the discarded cups into a more interesting pattern.
Final Step: Play with exposure. Barisonzi altered shutter speeds to find the right blur, one that was dramatic but clearly made up of runners

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