Canon Community

External Speedlite Control Error

Hi there.  I have my 580EX II connected to my 5D Mark II via a Vello cord.  I used to be able to control the flash on the back of the camera just fine using the External Speedlite Control menu function.  Now the last few days I am getting an error th...

Canon Tutorials

Hi I am new to this forum; after looking at a number of threads and, having posted a comment on Speedlites, I have been impressed by the many helpful responses. However, after some further research I came across a number of tutorials produced by Cano...

Trigger voltage for 7D and Rebel T4i

I'm curious if anyone knows what the 7D and Rebel T4i trigger voltage maximum are. I have a older Sunpack 422D with a dedicated Canon module, from a Canon A1, on it and was wondering if it can be used on either of these cameras. I would be using this...

Triggers

Hi,I have Canon T3i and 430 EX II and 420 EX flashes.What is the best option for triggers to control one of them off camera. I know that 420 EX cannot do manual(correct me if I am wrong)So I want to use 420 EX on camera and 430 EX II off camera.I wan...

600ex-rt with Yongnuo 560III

I know the Yongnuo 560 III has a radio reciever, the question is, will the RT in a conon 600ex trigger it?

430ex speedlite with T3i camera - High speed sync question

I have a problem using the high speed sync feature on my 430ex that I use with my Canon T3i body. When the flash is mounted on the camera and the high speed sync feature is on, I can shoot as fast as I can without any problems. However, when I use th...

Speedlite 600EX-RT connected to Hama 6977 "freezes" after first flash

For microphotography, I use two 600EX-RT flashes. I don't really care how, but I want to fire them at the same time using second curtain sync. Second curtain sync is crucial for me. Canon does not support this sync type when there is radio or optical...

Is the canon 600ex-rt flash compatible with the canon 50D camera?

Sekonic 478DR

Can the Sekonic 478DR trigger the 600 EX RT flash?

60d using built-in optical system "locks up" camera intermittently

I've been having an intermittent problem for a long time with my 60d "locking up" that seems to be getting worse.  I'm using the built-in optical system in the 60D in E-TTL to fire a Speedlite 580EXii and a speedlite 580EX, both off camera, using the...