TPB 87 – High Speed Photography Overview

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This is a 50 minute long video about high speed photography. I start with a history. Then go into an explanation of how it works and with a list of the useful equipment. It ends with a number of case studies showing how you can take many different types of these exciting photos.

If the video is longer than you want to watch at least check out the slides. You can get ...

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TPB #76 – Air Cannon Versions 2

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In this episode I do an overview of the new air cannon I made to help take high speed photos with the Camera Axe of new interesting targets.

Check out http://www.spudfiles.com if you want more information about building an air cannon.

See http://www.cameraaxe.com/ for more information about the Camera Axe.

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TPB #70 – Airgap Flash Interview at Fotobug

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I did a 30 minute interview at Fotobug. Check out the podcast at: http://fotobug.podbean.com/2013/11/03/fotobug-episode-90-maurice-ribble-the-air-flash/

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TPB #48 – Flash Duration Verification

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This video goes over the Flash Test Menu and finds why it hasn’t been reporting correct flash durations. The problem turned out to be the light sensor being used is not fast enough. To make this mode work reliably we’ll need a new light sensor that quickly transitions from <1V to >4V. I estimate a responce time of less then 5 us would be good for standard flashes and less than 0.1 ...

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TPB #30 – Flash Duration and Intensity Comparison

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This week I compare and contrast the flash duration and intensity of the Canon 580 EXII and the Yongnuo 460 flashes. They tie with duration, but the Canon flash does make more light.

A huge thanks to Alan for helping with a better light sensor to measure duration. Check out his flickr page for more info about the light sensor used.

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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 measuring flash ...

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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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TPB #23 – Measuring Flash Duration

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This week I show how to measure flash duration using a light sensor and an oscilloscope. I also explain the advantages of xenon flash tubes and their downfall. Lastly I go describe a trick modern speed-lite flashes use to get their short durations.

After all this I measure the flash duration of a Canon 580 EXII and a Yongnuo 460 flash. Much to my surprise the Yongnuo flash had less than half the ...

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TPB #10 – Multi-Flash Board

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This episode is about the new multi-flash board and how it allows you to safely connect many flashes or cameras to the Camera Axe. It goes through how this works and how you can daisy chain these boards to allow unlimited numbers of flashes.

Here’s the forum post about people making their own multi-flash boards from my schematics.

Here’s my store where I sell this board.

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TPB #9 – Photogate Sensor

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This episode is about the photogate sensor and how to use it with the Camera Axe. It goes through how this sensor works, use cases, and how to set it up.

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