Canon EOS 70D Operation Manual - Page 205

Using Wireless FlashN Wireless Flash Shooting Configurations The table below shows the possible configurations for wireless flash shooting. Choose the configuration suiting the subject, shooting conditions, and the number of external Speedlites you use. External Speedlite Quantity A:B Flash Ratio Built-in Flash Page Single - - p.206 Single - Used p.208 Multiple - Fully Multiple Set Automatic (E-TTL II Multiple - autoflash) Multiple Set Used Used p.209 p.210 p.211 • Flash exposure compensation • FE lock p.212 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.213 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 to control the slave unit. The flash fired to control the slave unit may therefore appear in the picture depending on the shooting conditions. 205