just got my cybersyncs in!!!

editing post for removal.

IIRC the on/test green led will stop flashing after an hour if you haven't pressed the button or the receiver has not received a transmission for the transmitter. It's designed to do that. If you do push the button or it receives a signal will will flash for another hour. There is no off switch on the receivers or the transmitter, btw.

As for the 580EX II going into standby, you'll need to change the standby period on the flash itself since, as you have already discovered, the receiver will not bring the flash out of standby mode.

Congrats, I think you'll like them. What mode is the 580EX II in? In ETTL mode I think the flash seldom fires a full or near full shot. A full manual shot with the flash does produce a noticeably different pop. At least my units do.

how reliable are the cybersyncs? I am going to order a set tomorrow as I need them for next weekend.

I've not had one misfire on me.

Very reliable. I have had mine for a few weeks now, and not a single misfire. And for the RX'er not turning off, I had the same issue except I was draining batteries in between uses, so now I store the RX'er with no batteries in it. When I need the Cyber Syncs, I pop the batteries in it and off I go.

I was actually considering gluing a small rubber washer over the switch to prevent it from being hit in the bag...

Titus213 wrote in post #6305669
I was actually considering gluing a small rubber washer over the switch to prevent it from being hit in the bag...

Another good idea. I will consider this once I get tired of pulling the batteries out.

tomdlgns wrote in post #6280205
i noticed it in ETTL and manual mode.

however, in ETTL it is a little louder.

as long as this is normal, i am ok with it.

and for the record, the green led does stop flashing after a certain amount of time. i could be 1 hr, i am not sure since i wasn't monitoring it.

I'm not sure you should be able to tell the difference in ETTL since you can't use ETTL with a Cybersync. If it's going off, it is probably dumping the whole load as if it were in manual. I could be wrong. I don't use an ETTL flash when I go off camera with a radio remote.

Titus213 wrote in post #6304418
I've not had one misfire on me.

Same here - not one misfire.

I've been shooting at 160th because the owners manual said to set the shutter speed at one or two clicks below the max sync speed. (I have a 30D and 430EX's). Has anyone played around with shooting at max sync speed?

The lack of an on/off switch is kind of a pain. I bought a pelican case, filled it with custom cut foam, and keep my receivers/trigger in this when in my bag. It looks like this:

I've had my cybersyncs for a couple of months now and have used them probably 20+ times. No misfires, and I love them. I have a 40D and it says max sync speed of 250, but mine will actually sync at 320. Go figure

You've probably already figured out you can change the Custom Function 1, and by changing it from 0 to 1 you turn off the automatic standby mode on Canon flashes. Hope that helps.

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What case is that? That works pretty nicely

Looks like a 1020, 1050, something in that range.

http://www.all-pelican-cases-4-less.com …Nm89raq3pUCFQv7​agodMX9AXw