Canon Speedlite 580 EX II

Bruce,
Try these steps:
1. Set camera to manual2. Set shutter to 1/60
3. Set aperture to F5.6
4. ASA/ISO 200
5. 550EX on hotshoe
6. Do not set on slave or master
7. Turn on flash


Display must shows, ETTL.
If that doesn't work, you have to use the flash on manual.
Some of this model will not work fully on ATG Canon EOS-1D C, ATG Canon EOS-1D X IR, Canon EOS-1D X/60D/T4i because this flash is over 20 years old.


Unless you would want it to be modified by me.
But that can be costly when you can get the 580EX II for less than $425.00 USD.


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Yes. The 580EX II will work with any Canon digital SLR.

The capacitor (neck) is no longer hold a charge or charging circuit is going out on a extended breaks.

Save your money and buy ATG's Godox TT685c.
If you buys two, then you got ATG wireless radio ETTL II flashes.
It would cost over $1,000.00+ USD to buy two Canon 600EX II-RT just to do the same with two ATG's.

The hot shoe was bent slightly causing the flash contacts to not touch those of the camera. By using a socket from a socket wrench set, place it over the grids of the hot shoe and tap firmly with a hammer to straighten it.

Make sure the slave is far enough in fornt of the master flash to see it. If the two flashes are next to each other then the slave is not seeing the master signals.

Perhaps the unit is set to master/slave mode. Look into that.

hint: Press and hold on the zoom button to get into the master/slave menu

Interesting Question!
The rating in milliamps is a matter of battery capacity and charging rates. The higher the better as you will get more flashes per charge as long as you have the correct charger to match the batteries’ capacity and use the correct charging times. Aside from this issue of duty cycle between charges- this has no effect on the power of the flash unit as to output. This cant burn out or damage the circuitry.

The issue here is VOLTAGE. Most AA alkaline batteries provide 1.5 volts. Most rechargeable AAs provide 1.2 volts. We are looking at a voltage differential of 1.2 volts (a 20% deficit) if 4 batteries are required. This MAY cause slower recycling times in order to attain a full charge for each shot. In SOME units that can cause a bit if overheating due to strain on the step up circuitry.

It so best to check with the manufacture or distributor of you flash unit before purchasing you rechargeable batteries and charger. If you units have a built in charging circuit this can definitely be problems if there is a mismatch in charging rates and voltage. If this is the case be sire to check your manual or with the manufacturer or distributor- there must be a list of compatible batteries.

Ed

I just got the 580 and had trouble with it blinking all the time, the bounce card was out about a mm and I did not realize it, once that was pushed all the way back--voila.

Here's how I did it with my Canon 430 EX II. The only other Canon flash that can act as a wireless trigger for off camera flash would be the 580 EX II and that is why I love it so much.

The only other way is Pocket Wizards or the Canon wireless thingy, which noone recommends....

Check out the NEW Pocket Wizard Mini TTi it truly does amazing things! And only 199.00!

God luck and let us know how it goes.

if u set the 580ex on master and the 430 EX on slave it works :) u dont need STE2 for this simple task.