Chicago: Shooting it Like a Pro

Lowenstein prefers the observatory of the Hancock Tower to the better known one atop the Sears Tower, because it's closer to the city and the lake. In this photograph, he used an aperture of f3.2 and a 1/640-second shutter speed — set for the light outside — but carefully crafted the activity inside. Each of the other visitors falls into the plane created by the window edges, giving the feeling that each person is locked in his own world.

• 1. Hancock Tower Observatory
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