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Author Topic: Comparing Intensity levels (dB)  (Read 4060 times)

Tim McCulloch

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Re: Comparing Intensity levels (dB)
« Reply #10 on: October 30, 2014, 10:10:03 PM »

Now, THAT I understand!

A change of 1 full f-stop either doubles or halves the *area* of the iris.
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Steve M Smith

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Re: Comparing Intensity levels (dB)
« Reply #11 on: October 31, 2014, 02:48:44 AM »

... or the shutter speed or the sensitivity of the film (or the sensor of those new fangled electric cameras).


Steve.
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Re: Comparing Intensity levels (dB)
« Reply #11 on: October 31, 2014, 02:48:44 AM »


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