Canon EOS Rebel T6i EF-S 18-55mm IS STM Lens Kit Instruction Manual - Page 181

Using Wireless FlashK Wireless Flash Shooting Configurations The tables below show the possible configurations for wireless flash shooting. Choose the configuration suiting the subject, shooting conditions, the number of external Speedlites you use, etc. External Speedlite Quantity A:B Flash Ratio Built-in Flash Page Single - - p.182 Single - Used p.185 Multiple - Fully Automatic Multiple Set (E-TTL II Multiple - autoflash) Multiple Set Used Used p.184 p.187 p.188 • Flash exposure compensation • FE lock p.189 Setting Wireless Functions Firing Group 0 1 All 0:3 - 0 1 All 0 1(A:B) 0+3 1 All and 2 0+3 1(A:B)2 Manual Flash External Speedlite Quantity A:B Flash Ratio Built-in Flash Page Single/ Multiple - - Multiple Set Single/ Multiple - - p.190 Used Multiple Set Used Setting Wireless Functions Firing Group 0 1 All 0 1(A:B) 0+3 1 All and 2 0+3 1(A:B)2 Even if you disable the built-in flash from firing, it will still fire in order to control the slave unit via optical transmission. The flash fired to control the slave unit may therefore appear in the picture depending on the shooting conditions. 181