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This guy built a high speed DIY LED flash and put the plans online so you can make your own

May 17, 2019 by John Aldred 2 Comments

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LED flash still hasn’t really hit the mainstream yet. There are a couple of products out there, of course, like the Rotolite Neo, but for the most part, there’s still not very good for general use. They’re just not powerful enough. But sometimes they can be perfect for the intended use. In particular, high-speed events. This is because you can get an extremely fast flash duration.

You can buy these sorts of light, but they aren’t common and they aren’t cheap. So, tinkerer Tyler Gerritsen thought he’d have a go at making his own. And the results it produces are pretty outstanding.

For most of us, high-speed flash like this is often done with speedlights. They will allow you to get flash durations shorter than 1/10,000th of a second (faster than your camera’s shutter speed will go). Some will even let you go as short as around 1/30,000th of a second. But sometimes even that isn’t fast enough to freeze super fast movement. Tyler’s goal was to create a single microsecond flash duration. That’s 1/1,000,000th of a second.

Tyler’s build starts with some high-quality LEDs, which cost him around $7 each. They’re the CREE CXA2530 and he bought a dozen of them. Each of them is 60 Watts, so he had a combined power of 720 Watts (this isn’t the same as a 720Watt-second strobe – but it’s still pretty powerful). That’s a fair amount of money for a bunch of LEDs, but fortunately, the rest of the components were pretty inexpensive.

Looking at Tyler’s results, though, it was money and time well spent.

Microsecond Flash 001

Microsecond Flash 003

To fire lights this fast, you obviously need a fast flash trigger. I’m not sure that your average Godox or Profoto trigger would be accurate enough. But Tyler built his own one of those, too, a couple of years ago. And, fortunately for us, he documented that build as well. Apparently, it can spot and react to subjects moving as fast as Mach 2.

It’s a very cool project, which is well worth looking into if you’re in the least bit interested in super high-speed photography and are pretty good with a soldering iron.

You can see the full project on Tyler’s website.

[via Hackaday]

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Filed Under: DIY Tagged With: DIY, Electronics, high speed flash, high speed photography, high speed sensors, Tyler Gerritsen

John Aldred: from diyphotography.net

About John Aldred

John Aldred is a photographer with over 20 years of experience in the portrait and commercial worlds. He is based in Scotland and has been an early adopter - and occasional beta tester - of almost every digital imaging technology in that time. As well as his creative visual work, John uses 3D printing, electronics and programming to create his own photography and filmmaking tools and consults for a number of brands across the industry.

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John Aldred: from diyphotography.netJohn Aldred is a photographer with over 20 years of experience in the portrait and commercial worlds. He is based in Scotland and has been an early adopter - and occasional beta tester - of almost every digital imaging technology in that time. As well as his creative visual work, John uses 3D printing, electronics and programming to create his own photography and filmmaking tools and consults for a number of brands across the industry.

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