The phottix strato ttl wireless flash trigger for canon provides an easy to use and affordable ttl flash triggering solution for photographers with the lcd display and quick change buttons adjustments are fast and easy high speed and second curtain sync are supported in this 4 channel 24 ghz transmitter and receiver set shoot at maximum shutter speeds of 18000s triggering hot shoe flashes is only the start of the phottix strato ttls abilities the strato ttl will also trigger studio lig