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FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 30 Aug 2010 (Monday) 06:18
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Canon ST-E2

 
canongrip
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Aug 30, 2010 06:18 |  #1

To use in a nightclub :: Want the ST-E2 mainly to use it as an autofocus assist device, since the amount of light at the places is scarce, I need that "beam" to AF.

Have this question:
Who can tell me more about the "line of sight" limitation founded at ST-E2 (?)

EDIT:
I use an 430EX II flash with Cactus V4 triggers or Shoe Cord.
Since the flash unit is not at shoe mount, it's difficult to focus in low light.
That's why I need/want a ST-E2.


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PacAce
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Aug 30, 2010 07:29 |  #2

canongrip wrote in post #10815220 (external link)
To use in a nightclub :: Want the ST-E2 mainly to use it as an autofocus assist device, since the amount of light at the places is scarce, I need that "beam" to AF.

Have this question:
Who can tell me more about the "line of sight" limitation founded at ST-E2 (?)

The line-of-sight limitation applies to the wireless functionality of the ST-E2. It has no relevance if you are going to use the ST-E2 only for focus assist. The ST-E2 does have a focus-assist range, though. It's 10 meters at the center and 5 meters along the periphery, according to the ST-E2 manual.


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canongrip
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Aug 30, 2010 08:10 |  #3

PacAce wrote in post #10815403 (external link)
.. It has no relevance if you are going to use the ST-E2 only for focus assist...

Yes it has. I'll be using with 430EX II.
I updated first post. to be more clear.


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liupublic
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Aug 30, 2010 10:01 |  #4

I did see a not yet released ST-E2 clone on Yongnuo's web site. Kind of interesting if it's <$100.

http://www.hkyongnuo.c​om/e-detail.php?ID=277 (external link)


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canongrip
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Aug 30, 2010 10:52 |  #5

liupublic wrote in post #10816105 (external link)
I did see a not yet released ST-E2 clone on Yongnuo's web site. Kind of interesting if it's <$100.

http://www.hkyongnuo.c​om/e-detail.php?ID=277 (external link)

Interesting indeed.
And it uses AA batteries instead 2CR5


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css7493
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Aug 30, 2010 11:00 as a reply to  @ canongrip's post |  #6

Im doing the same thing you are right now but for wedding receptions, usually very low light as well.

Ive got my elinchrom skyport triggering through pc jack on the side of my 40d and my 580ex ii not firing using only for AF assist on my camera body shoe, it works just the way I need it to.

I will definitely be trying the st-e2 yongnuo knock off when I can get ahold of one. If that doesn't work Ill cave and buy the official canon version.

If you aren't concerned about size/cost you might consider a 580 instead of st-e2 since the cost is not much higher.

Line of sight: The flashes communicate via IR, depending on ambient lighting and the other types of lights/flashes/party lights filling the room this can be affected. In a small room you can bounce the IR signal, similiar to how you can change the channel on the TV without aiming the remote directly at the TV (typical American analogy) I would recommend using your cactus AND an AF assist device.

Edit: eBay market on ST-E2 is pretty low right now.


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canongrip
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Aug 30, 2010 11:07 |  #7

css7493 wrote in post #10816467 (external link)
If you aren't concerned about size/cost you might consider a 580 instead of st-e2 since the cost is not much higher.

I've considered that, buy a 580EX II. But in the moment, I don't realy need a second flash..

I'm afraid that "line of sight" limitation caused by infrared transition might me a issue.

I need to get one (580) borrowed to test it :)


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css7493
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Aug 30, 2010 11:11 |  #8

canongrip wrote in post #10816497 (external link)
I've considered that, buy a 580EX II. But in the moment, I don't realy need a second flash..

I'm afraid that "line of sight" limitation caused by infrared transition might me a issue.

I need to get one (580) borrowed to test it :)


What body are you shooting with? If you have a PC port I would use both your RF transmitters and the AF assist device, you more than likely will have issues with the IR, the IR is best suited in very very controlled environments, too many factors at clubs.


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canongrip
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Aug 30, 2010 11:19 |  #9

css7493 wrote in post #10816511 (external link)
What body are you shooting with?

40D.

css7493 wrote in post #10816511 (external link)
If you have a PC port I would use both your RF transmitters and the AF assist device, you more than likely will have issues with the IR, the IR is best suited in very very controlled environments, too many factors at clubs.

It was from here (external link) that the idea of ST-E2 appeared.
I would love to have ETTL mode.
But ST-E2 and a set of PocketWizzards are too expensive to me.


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css7493
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Aug 30, 2010 11:37 |  #10

canongrip wrote in post #10816553 (external link)
40D.


It was from here (external link) that the idea of ST-E2 appeared.
I would love to have ETTL mode.
But ST-E2 and a set of PocketWizzards are too expensive to me.

Ah, forgot about ETTL, usually just shoot manual. Yeah PWs would do it but they are expensive.


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vmdc
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Aug 30, 2010 14:19 |  #11

Why not try an ETTL cord? You would still be getting the AF assist beam from your flash while it's on the cord wouldn't you? And you would be able to use ETTL of course.
I just purchased one from eBay. http://cgi.ebay.com …K:MEWNX:IT#ht_4​026wt_1058 (external link)


~Matt
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7D | Tokina 11-16 ƒ/2.8 | Sigma 17-50 ƒ/2.8 EX DC OS | EF 24-70 ƒ/2.8L | EF 70-200 ƒ/2.8L IS | 580EX II | PowerShot S90

  
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Mark ­ Vuleta
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Aug 30, 2010 14:28 |  #12

Not sure what size the V4's are, if they are somewhere near the size of Skyports, you can modify the ST-E2 with an active hot shoe and mount the trigger on top of it.

IMAGE: http://www.pbase.com/mark_vuleta/image/95800926.jpg

(I think FlashZebra does something like this??)



  
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canongrip
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Aug 30, 2010 14:32 |  #13

vmdc wrote in post #10817693 (external link)
Why not try an ETTL cord? (...)

I've already tried that.
It's not very practical to view through eye finder has you hold the body with one hand, and the other trying to aim the beam to the pretended focus point/subject.

Mark Vuleta wrote in post #10817741 (external link)
Not sure what size the V4's are, if they are somewhere near the size of Skyports, you can modify the ST-E2 with an active hot shoe and mount the trigger on top of it.

(I think FlashZebra does something like this??)

I want something like that...


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css7493
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Aug 30, 2010 14:33 |  #14

Mark Vuleta wrote in post #10817741 (external link)
Not sure what size the V4's are, if they are somewhere near the size of Skyports, you can modify the ST-E2 with an active hot shoe and mount the trigger on top of it.

QUOTED IMAGE

(I think FlashZebra does something like this??)

More info on how to do that at all?


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canongrip
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Aug 30, 2010 14:55 |  #15

css7493 wrote in post #10817773 (external link)
More info on how to do that at all?

You have this http://michaelbass.blo​gspot.com …ssories.html#ST​-E2ShutOff (external link)

IMAGE: http://4.bp.blogspot.com/_CRxbBKkoqIY/Ry8CkwFrSnI/AAAAAAAAAqs/Dcf6Ly81cEk/s200/ST-E2_ShutOff.jpg

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Canon ST-E2
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