https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/5D-MK-III-Off-camera-flash-s-don-t-always-go-off-on-first/m-p/316595#M74298 <P>I'm using a Flashpoint Transmitter (R2PRO) and several off camera flash heads. The transmitter works great when I test it with all the flash heads up and running. Sometimes the flash go off on the first trigger and sometimes it's on the second attempt. I have been using this system for over 2 years and it has been working flawlessly, till recently. All my camera settings are on Manual, including Auto Focus...manual. I use the transmitter to adjust the output of each flash.&nbsp;</P><P>I am now wondering, is there some internal functions/setting I don't know about that causes this intermittent flash problem. I'd sure like some help from the pros here.</P> Fri, 14 Aug 2020 23:52:46 GMT bobbean2020 2020-08-14T23:52:46Z https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/5D-MK-III-Off-camera-flash-s-don-t-always-go-off-on-first/m-p/316595#M74298 <P>I'm using a Flashpoint Transmitter (R2PRO) and several off camera flash heads. The transmitter works great when I test it with all the flash heads up and running. Sometimes the flash go off on the first trigger and sometimes it's on the second attempt. I have been using this system for over 2 years and it has been working flawlessly, till recently. All my camera settings are on Manual, including Auto Focus...manual. I use the transmitter to adjust the output of each flash.&nbsp;</P><P>I am now wondering, is there some internal functions/setting I don't know about that causes this intermittent flash problem. I'd sure like some help from the pros here.</P> Fri, 14 Aug 2020 23:52:46 GMT https://community.usa.canon.com/t5/EOS-DSLR-Mirrorless-Cameras/5D-MK-III-Off-camera-flash-s-don-t-always-go-off-on-first/m-p/316595#M74298 bobbean2020 2020-08-14T23:52:46Z