topic Re: Speedlight EL-10 Wireless Sender to 600-EX-RT Issue in Speedlite Flashes

Speedlight EL-10 Wireless Sender to 600-EX-RT Issue

KenKPhoto — Tue, 09 Jul 2024 00:29:46 GMT

I recently got my EL-10 to work with my R6M2. Since I have an older 600-EX-RT flash, I tried to synch the two together, with the EL-10 as sender to the 600's receiver. Both units used the same channel and ID.

They link up, but the problem is that the 600 flashes about 1/2 second after the EL-10.

Any ideas of what to do?

Thanks in advance.

Re: Speedlight EL-10 Wireless Sender to 600-EX-RT Issue

p4pictures — Tue, 09 Jul 2024 11:35:18 GMT

Hi KenKPhoto,

Welcome to the forums.

Do you have the 600EX-RT configured as a group B, C, D or E unit?

The unit on the camera that is acting as the sender will be group A automatically. When you press the test button on the sender, the camera will individually trigger each group in sequence but separately. Several times in the past I have found that people think this is a timing issue, but it only occurs when the test button on the sender unit is pressed. When you take a photo the two will fire in sync.

The reason is so that people can check that each group is actually firing, and was more useful when optical / line of sight triggering was used.

Re: Speedlight EL-10 Wireless Sender to 600-EX-RT Issue

KenKPhoto — Tue, 09 Jul 2024 17:16:38 GMT

Thanks- I set both units to A group and it works as you describe.

And now the fun begins!

Re: Speedlight EL-10 Wireless Sender to 600-EX-RT Issue

p4pictures — Tue, 09 Jul 2024 17:21:34 GMT

Indeed it does, Speedlite photography is fun indeed. With two light sources under your control you can do quite a lot. Sometimes you may want the 600EX-RT in the same A group as the EL-10, sometimes making them separate is more useful. It is also possible to have the on-camera EL-10 simply act as a radio transmitter and not actually output light itself.