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FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 30 Dec 2006 (Saturday) 04:32
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Add a sync port to 580 EX (DIY)

 
FlashZebra
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May 16, 2007 19:58 |  #61

Vermin87,

When you unplug that larger cable connector (and the foot assembly screws are out), does the super sigma's entire foot assembly become a separate piece?

It looks like it does, but I am not positive.

Are there four screws that hold on the foot assembly?

My guess on the three conductor connector that you have in the red oval, a QC test port for running a computerized check of a near finished unit (but I could easily be incorrect).

Enjoy! Lon


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Vermin87
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May 16, 2007 20:01 |  #62

Yes, the whole foot disconnects when you unplug the larger cable. There are 4 screws that hold the foot together. Why do you ask?


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FlashZebra
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May 16, 2007 20:07 |  #63

Vermin87 wrote in post #3217757 (external link)
Yes, the whole foot disconnects when you unplug the larger cable. There are 4 screws that hold the foot together. Why do you ask?

Because much like Amanda in "Another Roadside Attraction", I am by nature a curious person.

Enjoy! Lon


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EOS ­ mE
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May 16, 2007 20:31 |  #64

anyone have a disected photos of how it's done on the 430EX?


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FlashZebra
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May 16, 2007 20:55 |  #65

EOS mE wrote in post #3217895 (external link)
anyone have a disected photos of how it's done on the 430EX?

I have a complete foot assembly for a 430EX in front of me (but no 430EX flash).

It is very tight on room. I suspect you will not be able to get a mini jack in there, but you might be able to get a sub mini jack.

Enjoy! Lon


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EOS ­ mE
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May 17, 2007 14:35 |  #66

londuck wrote in post #3218165 (external link)
I have a complete foot assembly for a 430EX in front of me (but no 430EX flash).

It is very tight on room. I suspect you will not be able to get a mini jack in there, but you might be able to get a sub mini jack.

Enjoy! Lon

Lon, can you take detail photos of how to do that mod? i'm sure i can find some place to mount the mini jack. just the wiring part i need help on. if you could post that up that would be great.


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May 17, 2007 15:09 |  #67

EOS mE wrote in post #3222234 (external link)
Lon, can you take detail photos of how to do that mod? i'm sure i can find some place to mount the mini jack. just the wiring part i need help on. if you could post that up that would be great.

Sorry, but I have not made any modification to the 430EX foot assembly I have.

I just have one and can see that a chassis mini jack is most likely too big. But, you may be able to get a chassis sub mini jack in there (but I am not positive about that).

If you have a 430EX just take the foot assembly off and have a look for yourself.

All you have to do is remove four screws and unplug a small wire connector and it is off.

Enjoy! Lon


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May 17, 2007 16:32 |  #68

londuck wrote in post #3222381 (external link)
Sorry, but I have not made any modification to the 430EX foot assembly I have.

I just have one and can see that a chassis mini jack is most likely too big. But, you may be able to get a chassis sub mini jack in there (but I am not positive about that).

If you have a 430EX just take the foot assembly off and have a look for yourself.

All you have to do is remove four screws and unplug a small wire connector and it is off.

Enjoy! Lon

ok.. i'll have to do that 2nite.


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Vermin87
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May 17, 2007 18:41 |  #69

I investigated doing this on the Sigma EF-500 DG Super further and found out which wires to solder/splice.

IMAGE: http://farm1.static.flickr.com/191/502641188_3563680ea3.jpg
Here is a picture of inside the foot of the flash. The red wire is spliced with the yellow wire, which connects to the middle pin on the hot-shoe. the black wire comes up from the side pins so you can solder the blue one right onto where the black wire connects. hope this helps someone. I'm gonna try it later.

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takurpic
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May 30, 2007 00:54 |  #70

Thanks for posting this Vermin87. I have a Sigma for Minolta I was just getting ready to mod. Great timing!


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MartijnGizmo
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Jun 01, 2007 16:45 |  #71

Thanks for the great write-up and especially the clear pictures. Had my father-in-law solder both my 580EX's today, and they work great with my PW's! :D


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unferth
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Jun 15, 2007 14:48 |  #72

Just another addition....

I've done this to a Sigma 500 DG ST

...There's a trick.. you know that Test button on the back? ... I wired the mini-plug connection to that... so it's a remote cheat for the test button.. :)

I didn't take any pics while I was dismantling the thing, but you have to take it completely apart.. (the spot you're soldering to is on the back of the circuit board)...

the 500 DG ST has tons of room in the case since it doesn't have all the other electronics for wireless flash and such...

(I decided it was worth trying this on this flash since I've been collecting Metz 58's and haven't used this in a while)


This would really work on ANY flash with a test button...


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Sydney2K
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Jun 26, 2007 05:03 |  #73

These mods are great. Just need to to get answers to two questions:

I am right to say that this 580EX mod uses a 3.5mm mini plug jack while the Michael Bass mod uses a 2.5mm sub-mini plug jack. Any pro/cons in one or the other?

How do you know what's an "normally open" mini plug jack and "normally closed" mini plug jack.




  
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Lotto
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Jun 26, 2007 05:30 |  #74

Michael's mod using the sub mini plug looks cleaner, takes less space inside, plus he has the jack facing at 90 degree angle to the side of the flash rather then pointing toward the flash foot. The downside is that non of photo equipment I know use the sub mini jack, so the 2.5 mm jack to what ever plug adapter is required.

A normally closed mono jack has the hot and ground sides connected when the plug is removed, which in case use such jack with the 580 would make the flash becomes nonoperational. Take a look at this link for pictures of the jacks...

http://www.ceitron.com​/audio/aplug.html (external link)


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Sydney2K
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Jun 26, 2007 16:09 |  #75

Thanks Lotto.

The 2.5mm jack looks like a slightly neater option but how do you secure it to the side of the flash. The 3.5mm seem easier to do with the thread on the jack.




  
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Add a sync port to 580 EX (DIY)
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