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The king of slow-motion has done a deep dives on shutters, flashes and more
If you’ve ever wanted to see how a camera works in more detail than your eye could possibly manage, here’s your chance.
The Slow Mo GuysGavin Free, one half of the YouTube duo The Slow Mo Guys, is a camera nerd through and through. His 2015 video “Inside a Camera at 10,000fps” was one of the catalysts for me deciding to actually learn about the technical side of photography, rather than treating my camera as a sort of magic box that takes photos. But slow-motion videography and cameras have changed a lot since then, which is why it’s so exciting that he’s taken another run at the subject.
The video he released today covers way more than the mirror and shutter mechanism of DSLRs, though he goes into that a bit too. It also shows the exact way that electronic first curtain (or, really, mechanical second curtain) shutters work, how they synchronize with a lens’s aperture mechanism and captures a leaf shutter in action. The video also covers various flash sync modes, showing how a camera manages to capture the light from a strobe, and explaining the things that can go wrong in that process (especially when using High-Speed Sync).
If you’ve never dug into how a camera shutter works, this video is an excellent primer. Sure, you can figure it out by reading metaphors and explainers and looking at diagrams and animations (and those help you go deeper on a subject), but watching extremely slow-motion footage gives you a very visceral understanding of what’s happening. And if you are familiar with a camera’s mechanisms, it’s still fun to see them in action, in both high definition and slow motion. One thing I learned from the video is just how much the blades of a leaf shutter jiggle when it closes; it’s the kind of thing that really makes you appreciate just what a marvel of precision engineering and manufacturing cameras are.
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