The Triggertrap Mobile app is no slouch, and if you really want to dip
your toes in the world of high speed photography, you will want to avoid
your camera's shutter lag.
How? Easy: Trigger your flash directly. The Triggertrap Flash Adapter
lets you do just that.
The Triggertrap Flash Adapter connects your flash to your iPhone, iPad,
iPod Touch or Android device so you can trigger it with the Triggertrap
Mobile app. Triggertrap Flash Adapter supports all modern flashes with a
standard hot-shoe connector.
Never attempt to connect a flash directly to your smartphone - always
use a Triggertrap Mobile Dongle. This flash accessory must only be used
with modern, portable electronic flashes. Use with studio equipment or
with high-voltage flashguns may damage your smartphone.