TPB #56 – Four Valves

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In this video I show how to connect four valve sensors to the Camera Axe. It requires new software and a new cable. The software is linked below. The new cable is in the store below, but it is also very easy to make. I forgot to mention this in the video, but all you need to make the cable is a stereo splitter 3.5 mm cable. Then in one ...

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TPB #55 – Three Questions Related to Shutters

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This episode describes how a shutter works and answers the three questions related to shutter lag, high speed two curtain shutters, and high speed flash sync.

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TPB #52 – Valve Sensor Updates and Troubleshooting

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In this video I explain the updated power system for the valve sensor which now uses two 9V batteries. Then I talk about another possible improvement in the future to eliminate excess liquid after the solenoid and ask for suggestions. Lastly I cover some common trouble shooting tips for the valve sensor.

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TPB #44 – High Speed LED Flashes

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This week’s video is about very high speed flashes and whether LED based flashes are practical at these speeds. The dominant flash in this space is the air-gap flash with it’s half microsecond flash duration it is about 100 times faster than a typical speedlite flash from Canon or Nikon. I do some calculations that try to figure out how many LEDs you would need, what kind of current you’d need to driver ...

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TPB #39 – New Valve Sensor

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This video shows the new and improved valve sensor I’ve been working on for the Camera Axe. In the video I demonstrate how to setup the software to take a photo of colliding drops.

* The Camera Axe 5.3 beta6 software I used

A big thanks to Dave, Ric, and Ernie for helping me test and come up with ideas on how to improve this sensor. Thanks guys!

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TPB #34 – New Projectile Sensor

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This week’s video is about some improvements I’ve made to the Camera Axe’s Projectile Sensor. The projectile sensor is used to photograph moving bullets and other projectiles. Then in the end I talk a little about Alan’s high speed setup which uses the projectile sensor. Check out his three video miniseries where he describes his high speed setup in much more detail.

* Alan’s High Speed Setup Part 1
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TPB #32 – Camera Axe Helps Crowdsource Bullet Time Effects

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This week I am sharing some work from Guy Viner where he brings together a group of photographers to create a bullet time effect. The brilliance in this idea is you don’t need to buy a bunch of cameras since all your friends are bringing their cameras. This video goes through how he setup his shots. He was using the Camera Axe to help time his flashes.

Thanks to Guy Viner ...

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TPB #31 – Photographing a Bursting Balloon

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This week I demonstrate how to use the Camera Axe to photograph a popping balloon. I go over some some tricks to do with the balloon to make it look more impressive, how to setup the Camera Axe software, and the setup of your camera and flash. It’s quite easy to do once you understand the basic technique.

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TPB #26 – Choosing a Flash for High Speed Photography

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This week I give an overview of what makes a good flash for high speed photography. Some of the important things to look for are a short flash duration, and a way to manually select the power level for the flash. Lower power levels tend to be faster so with high speed photography people usually select one of the lower power settings.

More info:
Video about the camera shutter
Video about ...

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TPB #25 – Understanding Shutter Lag

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This week I explain shutter lag and how it affects high speed photography. The main message this week is that shutter lag at around 100ms is 1000x longer than flash duration. So for high speed photography people need to often use an external flash rather than relying on a shutter. This is usually accomplished by using bulb mode on your camera in a dark room and using a photo trigger like the ...

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