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Originally shared by Ed PeggRolling shutter effect. How many propellers does the plane have, and how fast were they moving?![](http://media.tumblr.com/2d43beef5528437dc84daf9a8319a9bf/tumblr_inline_mllcqv67Wg1qz4rgp.jpg)
Playing detective with rolling shutter photos
![](http://media.tumblr.com/2d43beef5528437dc84daf9a8319a9bf/tumblr_inline_mllcqv67Wg1qz4rgp.jpg)
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Reshared by: Ivan Zvolsky
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