EOS7D and wireless flash?

Splog

Splog

Suspended / Banned
Messages
6,257
Name
Steve
Edit My Images
No
Hi all
I read somewhere that the Canon 7D is the first Canon DSLR to support wireless (radio) triggering of off camera flash :shrug: Is this true and if so any info about it? or was I dreaming ...:thinking:
 
I don't know whether it's the first to support it but, yes, it does. Tried mine for the first time today with the 580EX off camera triggered by the onboard one.
 
It does, but it's optical, not wireless, it uses the built in popup flash as the commander.
 
OK, thanks for the replies :thumbs: So I take it it has to actually fire the onboard flash? or does the onboard flash fire an IR signal to the external flash?
 
Doesn't the Canon flash control system use a series of flash pulses to send information?
So I'd guess in the 7D the onboard flash is doing this instead of a on-camera flash unit?
 
Sightly annoying - but it only works with the onboard flash. Even if you disable the onboard flash - it still fires when using a remote flash. However it's such a low output as to have little or no effect on your image.
 
I've only played with it briefly with one remote flashgun and on ETTL it works extremely well .Apparently it can control up to 12 guns in 3 groups. Just gotta get the other 11 guns. :D
 
CT said:
I've only played with it briefly with one remote flashgun and on ETTL it works extremely well .Apparently it can control up to 12 guns in 3 groups. Just gotta get the other 11 guns. :D
Click to expand...

Thanks again :thumbs: So its optical and would need line of sight triggering.. That answers my question...

Cheers
Steve
 
Splog said:
Thanks again :thumbs: So its optical and would need line of sight triggering.. That answers my question...

Cheers
Steve
Click to expand...

Only line of sight in as much as any optical trigger is - the command flashes will still bounce so you can get away with quite a bit of round-the-corner setups.
 
Thanks Pete :thumbs:
 
CT said:
Sightly annoying - but it only works with the onboard flash. Even if you disable the onboard flash - it still fires when using a remote flash. However it's such a low output as to have little or no effect on your image.
Click to expand...

If you disable it, it only fires a pre-flash CT. So if you're using Canon EX remote flash guns it works fine and the onboard won't fire when the shutter is open. However, if you want to add any 3rd party optical slaves into the mix, you're buggered!
 
You must log in or register to reply here.
Back
Top