The Quantum Instruments Qflash TRIO Flash Kit with Turbo SC Battery Pack & CoPilot Controller for Canon Cameras from B&H combines the Qflash TRIO shoe-mount flash for Canon cameras with the Turbo SC Battery Pack for power and the CoPilot Wireless TTL Flash Controller. The system features a bare bulb design and comes with a parabolic reflector for distributing light as well as the FreeXwire radio technology that lets the TRIO control a number of remote Qflash units for multi-flash setups. This radio control works with the CoPilot controller to allow you to adjust settings for multiple groups of flashes from 300' away. This flash is also compatible with Canon's E-TTL / E-TTL II system for complete system operation with the camera including wireless TTL flash for digital preflash cameras with FreeXwire.
The TRIO has a guide number of 105' at ISO 100 with the QF60 reflector and a bounce and swivel head for versatility. Also, it has a recycle time of 1.5 seconds with the Turbo SC Battery Pack and will produce about 400 full power flashes on a single change. Additionally, it works with camera's high speed sync and AF assist settings.