Godox first TTL wireless flash trigger X1C applies to Canon EOS series cameras. Featuring multi-channel triggering, stable signal transmission, and sensitive reaction, it can be used to trigger camera shutter, studio flash and camera flash. X1C is compatible with market-available cameras which support E-TTL II. -With 2.4G wireless transmission system, X1C (for Canon) can be used to trigger camera flash, studio flash and camera shutter over 100 meters’ distance. -Fully support TTL functions, support for E-TTL II auto flash, manual flash, 1/8000 high-speed sync, flash exposure compensation, flash exposure lock, modeling flash, etc. .