Monthly Archives: February 2015

Brighter, faster, flashes from an LED-based flash gun – part 2

I have spent a little while now looking at the possibility of building a lower power version of the exciting Vela One very high-speed flash gun. Recently, I have managed to squeeze significantly better flashes out  of the 10W COB … Continue reading

Posted in Photography and electronics | Tagged , , , , , , , , , , , , , , , , | 5 Comments

Brighter, faster, flashes from an LED-based flash gun – part 1

This is a quick post to show that it is relatively easy to get very fast, bright, flashes from larger LEDs than those I reported upon in an earlier post. I used the same circuitry as before but this time … Continue reading

Posted in Photography and electronics | Tagged , , , , , , , , , , , , , | 3 Comments

Measuring flash duration with a PIN photodiode

In order to tinker with LED-based flash lighting, it seemed like a good idea to have some way of measuring flash intensity and also flash duration. Intensity seemed like it might be quite difficult to get results in meaning units … Continue reading

Posted in Photography and electronics | Tagged , , , , , , , , , , , , , , , | 3 Comments

Experiments using LEDs as a flash gun for high speed photography

I recently read on the Dreamingrobots Forum (http://www.dreamingrobots.com/forums/viewtopic.php?f=8&t=2237) about a very fast LED-based flash gun called the Vela 1 (http://www.vela.io/). This flash gun is amazingly speedy, delivering significant amounts of light within 500ns. That’s incredibly quick even by comparison to … Continue reading

Posted in Photography and electronics | Tagged , , , , , , , , , , , , , , , , , , , | 43 Comments