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Longer Exposure Versus Stopping Down

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Posted by David Ryle on May 28, 2001 03:52:39 UTC

I agree with the advise about stopping down at least one stop, but just remember that you cannot do an exposure longer than about 30 seconds without having some trailing effects. The narrower the angle of the lens, the worse it shows. Of course it is well beyond this discussion as to how to avoid trailing. Suffice it to say it isn't that hard, but it does involve more than a fixed tripod.

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