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FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 05 Oct 2008 (Sunday) 04:12
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Need help re: Comet CT-600 Flash Head

 
Wilt
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Oct 05, 2008 18:25 |  #16

clengster_77 wrote in post #6443170 (external link)
so the wide blade is the negative and the opposite thin blade the positive?

I would call the wide blade 'ground' and the narrow blade 'trigger'


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clengster_77
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Oct 06, 2008 10:25 |  #17

got it! thanks so much for your help guys! :)


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Jonathan ­ H
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Oct 14, 2008 22:37 |  #18

Polarity isn't an issue with sync. A household cord plugged in will sync either way. You can use any radio trigger (Pocketwizards, skyports, cybersyncs, gadget infinity, etc) or a regular PC cord connected directly to your camera if you have no other option.

The round port with lots of tiny pin holes is for connecting proprietary power packs. Dynalite makes a pack called the Jackrabbit which can be used to power either Dynalite or Comet monolights (like yours) and I believe they make adapter cables which can be used to connect the Jackrabbit to hotshoe flashes like the 580EX, but I could be mistaken. It is much smaller than the Innovatronix or Vagabond - about the size of a 5D with no lens.


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clengster_77
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Oct 15, 2008 08:36 |  #19

thanks for confirming about the sync polarity. do you have any idea if this light will be safe for my 1dmk2 or my 30d with regards to the sync voltage?


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Wilt
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Oct 15, 2008 08:37 |  #20

Jonathan H wrote in post #6497655 (external link)
Polarity isn't an issue with sync. A household cord plugged in will sync either way. You can use any radio trigger (Pocketwizards, skyports, cybersyncs, gadget infinity, etc) or a regular PC cord connected directly to your camera if you have no other option.

Polarity can be an issue. For example, IIRC there are Norman packs that will not fire properly with certain cameras with the plug at the pack pointing in one direction, but will work fine if reverse 180 degrees.


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clengster_77
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Oct 15, 2008 08:40 |  #21

Wilt wrote in post #6499675 (external link)
Polarity can be an issue. For example, IIRC there are Norman packs that will not fire properly with certain cameras with the plug at the pack pointing in one direction, but will work fine if reverse 180 degrees.

is it about the battery pack or the sync port? i'm sorry i'm getting a bit confused now :o


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Wilt
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Oct 15, 2008 08:50 |  #22

clengster_77 wrote in post #6499687 (external link)
is it about the battery pack or the sync port? i'm sorry i'm getting a bit confused now :o

Battery packs certainly have a polarity! It is the sync cord which often has no polarity visible by plug design, but can indeed matter for proper functioning.


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Oct 15, 2008 09:32 |  #23

thanks again :)


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kissel
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Feb 11, 2013 15:28 |  #24

I happened to buy a couple of these Comet strobes in a tip-top shape.
What's the P.Cell function? Can't find manuals anywhere on the web. Also, what is the white thing above the Variator switch?
Thanks!


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Wilt
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Feb 11, 2013 18:51 |  #25

kissel wrote in post #15599083 (external link)
I happened to buy a couple of these Comet strobes in a tip-top shape.
What's the P.Cell function? Can't find manuals anywhere on the web. Also, what is the white thing above the Variator switch?
Thanks!

What model Comet?...Take a picture and post it. Often we can figure things out just by looking!


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Feb 11, 2013 21:40 |  #26

kissel wrote in post #15599083 (external link)
I happened to buy a couple of these Comet strobes in a tip-top shape.
What's the P.Cell function? Can't find manuals anywhere on the web. Also, what is the white thing above the Variator switch?
Thanks!

A guess on the "P.Cell function".

This might be for "Photo Cell", another name for an optical slave.

Enjoy! Lon


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kissel
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Feb 12, 2013 01:36 |  #27

Comet CT-600

IMAGE: http://img8.zol.com.cn/bbs/upload/5132/5131760_0800.jpg

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Wilt
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Feb 12, 2013 11:01 |  #28

Looking at the CT-600 illustration in the OP, I would say that the white round thing is the photocell for the optical trigger.


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kissel
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Feb 12, 2013 13:49 |  #29

Shame the picture didn't work. But anyway - that really is a photocell. I was rather surprised to discover it today, since one of the reviews of this strobe I read on the internet prior to buying claimed CT-600 didn't have it. Having received the strobes in the mail yesterday I had no speedlight around to try it out. Thank you guys for help!

Took one of the strobes apart just to see what's inside - and was pleasantly surprised at how well it's built. Being 15 years old they are still fully functinal and definitelly better built than modern chinese strobes one can get for the same money - and much more powerful. Cooling is passive, which means there's enough durability. Recycle time is rather slow (at full power output), but ok for the studio.


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Need help re: Comet CT-600 Flash Head
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