http://err.no/personal/blog/ tfheen's blog tfheen@err.no tfheen@err.no en http://err.no/tfheen.jpg Image of Tollef Fog Heen http://err.no/personal/blog 66 100 http://err.no/personal/blog/tech/photo/2007-09-30-12-58_triggering_flash.html Sun, 30 Sep 2007 12:58 +0100 <p>Recently, I added some photo related blogs to my reading list, amongst them <a href="http://strobist.blogspot.com">strobist</a>, and so I came across a post about the <a href="http://blog.everythingrobotics.com/2007/09/20/open-source-wireless-trigger/">Open Source Wireless Trigger</a>. Being interested in both electronics and free software, I read through most of the posts on the forum as well as the wiki. I also started experimenting a bit with an old Nikon SB-24 flash I had lying around since even if I managed to break it, it wouldn't be that bad. And it's old and robust.</p> <p>So far, I've played around with how to make the flash go off. For the hot shoe, it's just shorting the ground and center pin (I just used a big resistor). For the PC connector, I had to apply a bit of voltage; I used an AA/LR06 battery and that worked splendidly. (Oh, and PC in this context has nothing to do with computers, it's an abbreviation of Prontor-Compur, two shutter manufacturers who decided on the design of the connector back in the 1950s.)</p>