Canon Speedlite 430EXIII-RT Instruction Manual

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Contents

615: Wireless Multiple Flash Shooting with Flash Ratio4 Set the flash exposurecompensation amount for slave C.Set it by operating the master.Set the amount as necessary.Press <8>.Turn <9> to select the flashexposure compensation amountsymbol for C, then press <8>.Turn <9> to set the flash exposurecompensation amount, then press<8>.If you need more flash output or wish toperform more sophisticated lighting, youcan increase the number of slave units.Simply set an additional slave unit to thefiring group (A, B, or C) whose flashoutput you want to increase. You canincrease the number of slave units up to15 units in total.For example, if you set a firing group with three slave units to <a>,the three units are treated and controlled as a single firing group A witha large flash output.Slave C flash exposurecompensation amountGroup Controlf ffFiring group ATo fire the three firing groups A, B, and C at the same time, set<6>. With the <5> setting, firing group C does not fire.If you shoot with firing group C pointing directly toward the main subject,overexposure may result.The flash ratio of 8:1 to 1:1 to 1:8 is equivalent to 3:1 to 1:1 to 1:3 (1/2-stopincrements) when converted to the number of stops.