visitor [Adrian] chosen up a couple inexpensive wireless flash triggers on eBay. Unfortunately, his Sigma EF-500 DG super strobe doesn’t have the necessary sync port to make utilize of these. He popped the gadget available to try to figure out a method to trigger the gadget manually. The very first concept was to utilize the test button to terminate the device. thanks to lag, it didn’t work for anything under 1/20th. The solution was to go directly for the optical trigger. [Adrian] has published some teardown photos that will assist you determine the appropriate solder points for your own mod. The only bit that’s left is adding a 3.5mm mono headphone jack as a sync port. He likewise has a publish on modifying the flash for higher head movement.