580EXII to trigger 430EX in slave...

  • Thread starter Thread starter englandshottest2
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englandshottest2

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anybody know how exactly to get a 580EXII whilst being used onboard to trigger a 430EX in the distance? i've set it to slave, but seem to not be getting anywhere! :shake:
 
Alex,

Hard to say from your brief details. What modes do you have the flashes and camera in?

Bob
 
hehe yea ...5d in manual mode, 580EXII on camera set in ETTL mode, 430EX set in manual.
 
The short hand is you need to set the 580EX II as the master and the 430EX to act as the slave, this needs to be done on each device. To do this with the 580EX II you press and hold the zoom button and you'll be presented with two or three options - it'll say off (to sun in solo mode) then you can scroll through the different options with the wheel. The options are Master (on) and Slave (on) - you want to select Master - once you have the flashing Master (oooo matron!), hit OK button in the middle of the wheel and hey presto you're done. To tell it's working the LED/IR will flash on the front bottom of the flash.

Not sure how you do it to the 430EX however - someone else will have to help you with that.

Matt
 
thanks, that sounds easy enough :)! now to get the 430 working lol
 
Alex,

I found this....maybe it'll help :shrug:

Bob

How to configure the master flash (for the 580EX II):
  • To switch flash to master, push and hold 'zoom' button until icon appears; then use wheel to toggle between normal mode, master mode, and slave mode; confirm setting with 'set' button. Master mode here refers to role the flash plays in the flash group.
  • Once in master mode, to switch settings, push 'zoom' button without holding it to toggle between setting channel, master on/off, and group ratio selection. The channel needs to be the same as the slave. Master on/off here refers to the master flash participating in flash exposure or not, not to be confused with master role in terms of controlling the flash group.
  • Once A:B ratio is selected, the wheel can be used to select the ratio between 8:1 to 1:8.
  • Once all done, to return to default operation, repeat step 1, but select the 'off' mode.
Configuring the 430EX as slave:
  • Just above the shoe mount is a toggle button for 'off' and 'slave'. Turn this to 'slave'. It will default to channel A - all set, the rest is controlled from the master.
 
Ahhhhhhhhh the 430EX is the same as the 420EX - I was going to suggest that but wasn't sure! :)

Matt
 
thanks! but ummmmm my chanels are 1, 2, and so on, not a, b, etc. the a's and b's show up under ratio :(!
 
without sounding terribley dumb...can somebody explan what the ratio thing is all about? (580EXII at bottom of screen)- 8:1, 4:1, 2:1, 1:1, 1:2, 1:4, etc.???
 
It's simply the ratio between flashes in group A and B. If you set the master as group A and the slave as group B you can set the output ratio between them. Note that it gets a bit confusing because the 8:1 actually equates to 3 stops. If you accept that at setting 1:1 each flash will be controlled to give the same exposure then you should be able to see that when you set the ratio at 8:1 the master (group A) will expose 3 stops higher than the slave (group B). If you set the ratio to 1:8 then the flash in group B (slave) will expose 3 stops higher than then flash in group A (master).

If you assume the master flash (on the camera) has been set to group A and the slave flash has been set to group B then:

1:1 = both flashes expose the same.

2:1 = master (group A) exposes 1 stop higher than slave (group B)

1:2 = slave (group B) exposes 1 stop higher than master (group A)

(The dash line between whole numbers represent half stop adjustment)

Well that's how I understand it
 
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