In their latest extreme slow-motion video, the Slow Mo Guys on Youtube take a close-up view of a shutter inside a camera at 10,000 frames per second.

While visually stunning, what’s great about this video is that it perfectly demonstrates how a shutter works. It’s really worth a watch for anyone who has ever wonder about the sophisticated technology inside their camera and what’s behind the images it produces.

The camera featured is a Canon EOS 7D, and the Slow Mo Guys, as always, used a Phantom Flex at 10,000fps to capture the video.

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