DIY Bullet-Time Prototype

In this post, I mention a form of photography called “Bullet-time” photography. By taking pictures from multiple angles at the same moment, you can create animations that appear to have been frozen in time.

Here’s the thing, I really want to do this! However, synchronizing cameras is no easy task. It requires specialized hardware. I really want to work with this technique, but multiple DSLR’s seems expensive. On top of that, how would I find a device that simultaneously presses the shutter release on each camera at the exact millisecond?

This is when I began seeking solutions.

Starting with a Budget Camera Model

A liberating idea occurred to me.

“I don’t need the best, newest, most recent, camera to do this.”

I settled on the Canon 30D. Made in 2006, this DSLR camera initially launched for $1,000 MSRP. Now, you can pick one up for $35 – $50 used on eBay. I bought two Canon 30D’s and a lens for each one. 8.2 Megapixels is fine!

and dropping the notion that megapixels matter.

Megapixels are sort of a marketing scheme. Good photographs don’t require high resolution. High resolutions are only necessary for professional work and large scale printing. Plus, “higher megapixel” cameras are sometimes upscaled or use lower quality, noisy image sensors.

The images you create rely on the creative work you put into crafting the image, not just the money you spend.

With a new mindset to approach this project in a resourceful and budget way, I continued onward!

Jerry Rigging a DIY Shutter Sync

Now I had a few cameras, so I just needed something to synchronize them. A normal shutter release wouldn’t do the trick unless I could somehow make it so one press triggered all the cameras.

After lots of research and conceptualizing, I figured that you might be able to split a 2.5mm cable into multiple other male-end cables.

I did a lot of experimentation and ended up taping together lots of wire. Positives to positives and negatives to negatives. In the moment, I wasn’t really sure what I was doing. The theory was that I could string together a bunch of female 2.5mm cables to a single male one.

This was the result!

Success!

And it worked! … Sort of.

When I pressed my shutter release, all the cameras took pictures. However, I accidentally created some kind of broken electrical feedback loop. Sometimes when I plugged in the cameras, they would all infinitely take pictures. Luckily I was able to circumvent this using some special techniques. Either way, it wasn’t ideal, but it only cost $30 compared to the $1000+ alternatives.

Here are some of the first test animations I created:

2 camera test – self-portrait (flash)
3 camera high-speed test. unfortunate noise issues and some framing / image position problems. Could refine the process with more time and resources! My goal is to get smoother animation. (you can see me holding the shutter cable in the bottom left)
The rig in action.

Bullet-time Compositions

Lately, I’ve been thinking about what makes a good composition in a bullet-time animation. The subtlety of motion, textures, and three-dimensional focal point seem to play huge roles.

I want to refine this process and explore the possibilities in a deeper way. Once I’ve figured out the technical aspect of this, I’m going to capture portraits of people, and try doing some “bullet-time event photography” using a portable rig.

Could “3D Bullet-time Photography” be a niche opportunity? The $300 I spent on this project could have been an investment.

Wish me luck!

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