So, for people who are seasoned in photography, you'll probably know that when using Speedlite flashes on consumer-grade cameras, the camera can only synchronize the flash up to a speed around 1/160th of a second. This is a problem if you want to do high speed photography, using an external controller and sensory input (such as a microphone or light sensor) so the solution is to add external flash control, to allow the controller to trigger the flash itself, instead of using the camera. This mod also allows you to connect your flash off-camera, using a modified hot shoe connector. It also doesn't compromise the on-camera functionality of the flash.
The modification is quite simple, requiring only a few tools and parts.
Step 1: Tools and Materials
- Manual or TTL flash
- 3.5mm mono or stereo jack
- 4" lengths of 24AWG wire
- 1/16" heatshrink
- 3/32" and 17/64" drill bits (1/4" may work too)
- Hot glue gun
- Soldering Iron
Step 2: Disassemble Flash
Identify a location inside the flash that will allow enough free space for the jack to go in. Its a good idea to leave a good safe amount of extra room near the jack so it won't collide with anything inside the flash.