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Old Apr 4, 2007, 1:32 AM   #8
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Hayward's Avatar
Join Date: Jan 2007
Posts: 1,318

Still not an easy factor to manipuate in your head, like just halving/doubling shutter is.

The the 1.4 thing is close but not exact... but every other full stop does double.

But knowing what the full stops are... makes it easier to quickly go from the midsteps say one stop to the same mid step, without using EC or its not available.
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