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Why doesn't a shutter speed of ¹⁄₂₅₀th freeze motion when a flash of that duration does?

This question connects with my previous question: Why do cameras that film with high FPS rates cost a lot? I just read that a normal flash illuminates a scene within a 1/250th of a second. (A flash ...
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5 votes
5 answers
2k views

How can I reduce "ghost images" of water droplets?

I am interested in taking the photo of spray of droplets. I also want to measure their size. I have captured a streak-type image of each and every water droplet coming from the nozzle. If you observe ...
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