The brightness and lighting ratio of multiple units can be controlled through E-TTL II autoflash metering, and an AF auxiliary flash function for area autofocus is provided.
Power: 1 lithium battery (2CR5) Weight: 100g
Notes: - Multiple flash control and lighting ratio control are supported by EOS-1v, EOS-3, EOS 30V/33V/30, EOS 300X, EOS 300V, EOS 3000V, EOS-1D series, EOS 5D, EOS 30D, EOS 20D/20Da, EOS 10D, EOS D60/D30, and EOS 350D DIGITAL and EOS 300D DIGITAL. - The lighting ratio between slave units can be manually controlled with other EOS models not listed above.
Product Catalogue 
