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What is this optical phenomenon? Donut-shaped focus/blur?
Scythels
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#8
02-20-2015, 10:06 PM
Interference would only be correct if small changes to focus/other blur factors changed the pattern. 

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What is this optical phenomenon? Donut-shaped focus/blur? - by Scythels - 02-20-2015, 10:06 PM

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