https://community.usa.canon.com/t5/Speedlite-Flashes/How-do-I-get-the-600-ex-rt-off-of-ratios-and-put-in-power-output/m-p/79652#M2146 <P>You have to put it in manual mode, instead of eTTL.</P> Tue, 01 Apr 2014 17:35:36 GMT Skirball 2014-04-01T17:35:36Z https://community.usa.canon.com/t5/Speedlite-Flashes/How-do-I-get-the-600-ex-rt-off-of-ratios-and-put-in-power-output/m-p/79650#M2145 <P>I can't find it anywhere in my manual or the custom functions. For instance, it is showing the ratio&nbsp;<SPAN>of 1:4&nbsp;</SPAN>instead of the power &nbsp;output of 1/4 power.</P><P>&nbsp;</P><P>I am using a Mark III.</P><P>&nbsp;</P><P>Thank you!</P><P>&nbsp;</P> Tue, 01 Apr 2014 17:29:25 GMT https://community.usa.canon.com/t5/Speedlite-Flashes/How-do-I-get-the-600-ex-rt-off-of-ratios-and-put-in-power-output/m-p/79650#M2145 BDAgirl 2014-04-01T17:29:25Z https://community.usa.canon.com/t5/Speedlite-Flashes/How-do-I-get-the-600-ex-rt-off-of-ratios-and-put-in-power-output/m-p/79652#M2146 <P>You have to put it in manual mode, instead of eTTL.</P> Tue, 01 Apr 2014 17:35:36 GMT https://community.usa.canon.com/t5/Speedlite-Flashes/How-do-I-get-the-600-ex-rt-off-of-ratios-and-put-in-power-output/m-p/79652#M2146 Skirball 2014-04-01T17:35:36Z