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Climbers in Ethiopia's Danakil Desert prepare to descend into Ertale volcano. The volcano, which has been active for nearly a century, has a lake of molten lava at the center of its caldera.
(Photo shot on assignment for, but not published in, "Africa's Danakil Desert: Cruelest Place on Earth," October 2005, National Geographic magazine)
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When making long exposures, use a remote release to avoid camera movement. If you don't have a remote release, use the camera's self-timer.
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