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FORUMS General Gear Talk Flash and Studio Lighting
Thread started 28 Dec 2005 (Wednesday) 17:20
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Creating your own HOT shoe 2 extension cable.

 
fredlef
Member
227 posts
Joined Apr 2007
Windsor, Ontario
Oct 25, 2008 17:15 |  #181

Well this works great! I did the solderless RJ45 connections and am very pleased with the results - took hardly any time - about $30 outlay for two ends and a 3 foot ethernet cable to test.


Fred
5D Mark II, 40D w/Grip, 30D, XH-A1, EF 70-200L 2.8 IS, EF 24-70L 2.8, EF 28-135 IS USM Kit, EF 50 1.4 USM, EF 70-300 4-5.6 IS USM, 580EXII, 430EX, Alzo Flash Bracket, Assorted Filters

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Beau ­ Hudspeth
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Joined Aug 2005
On the "Highway to 'L' " with a cardboard sign reading - "Will photoshop for food" - Beaverton, Or.
Oct 25, 2008 21:02 as a reply to fredlef's post |  #182

I did mime 2 days ago. The pics are not mine.

1 CHEAP ETTL cable = $35.95 (external link) (Already had this)

IMAGE: http://www.adorama.com/images/large/FAOCSCCAS.JPG

1 Male 1 / Female Mini DIN Connector = $1.25 each. Got at the local electronics store. (Norvac)

IMAGE: http://www.pacificcable.com/photos/MD6F.jpg
IMAGE: http://www.pacificcable.com/photos/MD6M.jpg

1 15' PS2 cable - all pins live - verified = $15.00. Also from Norvac.

IMAGE: http://www.cablesdirect.com/prodimages/CC321-15S_LR.jpg

Total = $52.45 for 18' ETTL cable and it works flawlessly. :)

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Samdiver74
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Joined Sep 2006
Tampa Region, Originally Wales UK
Nov 15, 2008 09:47 as a reply to Beau Hudspeth's post |  #183

Finally got my 50ft of cable and assembled everything, it works like a champ.
So now if I get another flash such as another 580EX or an ST-E2, I can set the one attached via the Extension cable as the master and the second as a slave.
The possibilites have opened up greatly.
Thanks guys


Allan
7D, 10-22mm, 100-400, 50mm 1.4, MP-E 65mm, Sigma 150-600mm Sport, TC-80N3, 580EX, 580EX II ST-E2, OC-E2, 3021 BPro, 488RC4, Kenko EF/EFS ext tubes, The Ultimate lightbox system & Delta flip flash bracket & various lighting accessories.
http://allanmorrisphot​ography.smugmug.com/external link

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fredlef
Member
227 posts
Joined Apr 2007
Windsor, Ontario
Jan 09, 2009 20:38 |  #184

Has anyone experimented with the idea of one to many? That is a cable from the camera shoe to a network box - then three or four cables coming out from the network box to different flashes?


Fred
5D Mark II, 40D w/Grip, 30D, XH-A1, EF 70-200L 2.8 IS, EF 24-70L 2.8, EF 28-135 IS USM Kit, EF 50 1.4 USM, EF 70-300 4-5.6 IS USM, 580EXII, 430EX, Alzo Flash Bracket, Assorted Filters

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msowsun
Cream of the Crop
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Joined Jul 2007
Oakville Ont. Canada
Jan 09, 2009 20:58 |  #185

I think Michael Bass has....

http://michaelbass.blo​gspot.com ...html#OCC_SplitterPa​ssThru (external link)

IMAGE: http://i2.photobucket.com/albums/y17/msowsun/photo%20stuff/Split2x_OCC.jpg

Mike Sowsun / S110 / SL1 / EF-S 24mm STM / EF-S 10-18mm STM / EF-S 18-55mm STM / EF-S 18-135mm STM / EF-S 55-250mm STM
5D3 / Samyang 14mm 2.8 / EF 40mm 2.8 STM / EF 50mm 1.8 STM / EF 100mm 2.0 USM / EF 100mm 2.8 USM Macro / EF 24-105mm IS /
EF 70-200mm 2.8L IS Mk II / EF 1.4x II
Full Current and Previously Owned Gear List over 40 years Flickr Photostream (external link)

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Beau ­ Hudspeth
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On the "Highway to 'L' " with a cardboard sign reading - "Will photoshop for food" - Beaverton, Or.
Jan 09, 2009 23:10 |  #186

Wow. That looks convoluted. ;)


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fredlef
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227 posts
Joined Apr 2007
Windsor, Ontario
Jan 17, 2009 05:12 |  #187

also looks pretty slick


Fred
5D Mark II, 40D w/Grip, 30D, XH-A1, EF 70-200L 2.8 IS, EF 24-70L 2.8, EF 28-135 IS USM Kit, EF 50 1.4 USM, EF 70-300 4-5.6 IS USM, 580EXII, 430EX, Alzo Flash Bracket, Assorted Filters

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msowsun
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Joined Jul 2007
Oakville Ont. Canada
Jan 17, 2009 06:35 |  #188

:shock: And expensive! :shock:


Mike Sowsun / S110 / SL1 / EF-S 24mm STM / EF-S 10-18mm STM / EF-S 18-55mm STM / EF-S 18-135mm STM / EF-S 55-250mm STM
5D3 / Samyang 14mm 2.8 / EF 40mm 2.8 STM / EF 50mm 1.8 STM / EF 100mm 2.0 USM / EF 100mm 2.8 USM Macro / EF 24-105mm IS /
EF 70-200mm 2.8L IS Mk II / EF 1.4x II
Full Current and Previously Owned Gear List over 40 years Flickr Photostream (external link)

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jmb4370
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320 posts
Joined Jul 2006
Newtown, CT
Jan 17, 2009 07:40 |  #189

That image (post #185, and also on my site) is only to show what might be available in terms of interconnecting the different parts. Only 2 eTTL flash units can be connected at a time to give reliable eTTL exposures, but sometimes you might want additional hadwired manual units included as well. Sometimes you want both of the flash units to be at the end of the line, as on a dual bracket (using the pass thru splitter #4), and sometimes you want the each unit on a different side of the camera, and then you would use the splitter #2, or even have the splitter built inside of the camera portion of the OCC (not shown, but has been done for item # 1).

These item numbers refer to the image posted by Mike Sowsun in post # 185, and also seen with many other examples in the OCC section of my site.


Michael
www.MichaelBassDesigns​.comexternal link

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Nabil-A
THREAD ­ STARTER
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Joined Dec 2004
Melbourne, Australia
Jan 21, 2009 23:22 as a reply to fredlef's post |  #190

Wow.. 188 posts later since my first post and still going strong.. :)


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rosco1971
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386 posts
Joined Mar 2005
TORONTO,ONTARIO
Jan 30, 2009 22:31 |  #191

Nabil-A wrote in post #1031660external link
HOtSHOE 2 Cable - Plugs
---------------
Okay so youve decided to modify your hotshoe 2 cable.

Firstly
word of advice.

If you found the mods to the extension cable going tough, then you probably shouldnt touch your hot shoe 2 cable.

Otherwise read on.
---------------
For safety cut your hotshoe 2 cable square in the middle. (This gives you more wire to play with should your attempts the first time round be unsuccessful - you can chop the plugs off, buy some more and try again.

In my case i chopped the cable more to one end of curly section - closer to the flash hotshoe connection , so that when plugged onto the camera i dont have the connecting point anywere near my hands.

IMPORTANT
---------------
Below you will see a complete pic and a diagramatic pic indicating corresponding hotshoe contacts.
Pay attention to the following information
It doesnt matter which colour you solder to your plugs from the hotshoe, but so long as you record the the pin and the colour and follow the same for the other plug.. you should have something similiar to my schematic from stage 3 (ie reverse pin colour locations).

again perform continuity checks after each plug is soldered. Check your cable works on its own without
the extension cord. This will identify if you have soldered the plugs on correctly to the original cable first.

DONT FORGET TO PUT YOUR PLUG COVERS AND (optional heatshrink on) before you perform any soldering.

GOOD LUCK
Hope this helps.

I have the OFF-CAMERA SHOE CORD 2 and all pins except PIN 3 (MARKED ON PHOTO OF YOUR CORD) ARE ACTIVE.I HAVE CONTINUITY ON ALL EXCEPT PIN 3.....I CHECKED IT BEFORE I CUT CORD AND THERE WAS NO CONTINUITY ON PIN 3 FROM THE PART OF THE CORD THAT CONNECTS TO THE HOT SHOE AND THE OTHER SIDE THAT CONNECTS TO THE FLASH. 1,2,4,5 AND 6(UNDER THE SQAURE PLATE ARE FINE.Flash fires and seems to work fine with extention and with out.Does that Pin 3 not do anything possibly?When i cut the cord there was only 5 wires and ground that wrapped around wire.


http://www.pbase.com/r​osco1971external link CANON 5D, 20D 17-40 f4L,SIGMA 10-20MM ,Sigma 24-60MM f2.8 , 50MM F1.8 , 70-200MM F2.8 L.,kenko pro 300 1.4 teleconverter
http://rossano1971.dev​iantart.com/external link

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msowsun
Cream of the Crop
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Joined Jul 2007
Oakville Ont. Canada
Jan 30, 2009 22:38 |  #192

The ground is the 6th connection.

I think one of the wires has a diode on it and that may be why you are not getting continuity.


Mike Sowsun / S110 / SL1 / EF-S 24mm STM / EF-S 10-18mm STM / EF-S 18-55mm STM / EF-S 18-135mm STM / EF-S 55-250mm STM
5D3 / Samyang 14mm 2.8 / EF 40mm 2.8 STM / EF 50mm 1.8 STM / EF 100mm 2.0 USM / EF 100mm 2.8 USM Macro / EF 24-105mm IS /
EF 70-200mm 2.8L IS Mk II / EF 1.4x II
Full Current and Previously Owned Gear List over 40 years Flickr Photostream (external link)

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rosco1971
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386 posts
Joined Mar 2005
TORONTO,ONTARIO
Jan 30, 2009 22:50 |  #193

msowsun wrote in post #7224091external link
The ground is the 6th connection.

I think one of the wires has a diode on it and that may be why you are not getting continuity.

Yeas you are right about the diode.............on the part that attaches to the camera hot shoe i have continuity from pin 3 to the mini din connector.And on the part the connects to the flash to the mini din connector pin i have nothing.........so that tells me there is a diode of some sort in that part of the plug.

Thanks for the response.


http://www.pbase.com/r​osco1971external link CANON 5D, 20D 17-40 f4L,SIGMA 10-20MM ,Sigma 24-60MM f2.8 , 50MM F1.8 , 70-200MM F2.8 L.,kenko pro 300 1.4 teleconverter
http://rossano1971.dev​iantart.com/external link

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RAitch
Goldmember
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2,917 posts
Joined Mar 2005
Sarnia Ontario, Canada
Feb 02, 2009 11:15 |  #194

I did mine a while ago and just enhanced it on the weekend. I made a short cable that has a phono end for use with Pocket Wizard or (in my case) Alien Bees Cyber Sync triggers. It works very well and I avoided drilling through my flash to add a connector.

IMAGE: http://seettl.com/Files/POTN/CyberSync.jpg
[IMAGE'S LINK: http://seettl.com ...t_image&pic=CyberSy​nc.jpg] (external link)

One question I have is tightening the connection on the hot shoe. On one of my cables, the metal cover that the flash anchors to lifts up slightly. This seems fine for just a trigger, but when used with TTL, there is broken communication on one (or more) of the smaller pins.

How can I tighten this down? I see above that Ekke was able to totally disassemble the shoe, but I wasn't able to figure out how to get it apart (beyond the cover).

Ideas?

See Through The Lensexternal link

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jra111
Hatchling
1 post
Joined Jan 2007
Feb 09, 2009 23:24 |  #195

Has anyone tried a Y splitter from the camera end? To see if you can hook up a 580ex to keep the high speed sync and 2nd curtain and then on the other end have a plug for your pocket wizard for your other lights in sync the 580ex?




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Creating your own HOT shoe 2 extension cable.
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