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FORUMS General Gear Talk Flash and Studio Lighting 
Thread started 13 Nov 2014 (Thursday) 20:23
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The Canon 70D has no sync cable plug - how to fire my strobes?

 
Left ­ Handed ­ Brisket
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Nov 16, 2014 06:45 as a reply to  @ post 17274701 |  #16

Have to agree. I liken it to Apple removing floppy drives on th iMac and later even CD drives on laptos. There might be some growing pains for some but ultimately it was the right thing to do.


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gonzogolf
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Nov 16, 2014 07:33 |  #17

Trailboy wrote in post #17274701 (external link)
When I first had a 60d, I thought the lack of a PC connector was going to be a problem.

Never once have I thought this.

Radio trigger technology is now the far superior modus operandi in all circumstances.

Except when it fails. The more complicated your solution, the greater your, possibility for failure, increasing the need for a backup alternative. The PC sync offers an instant backup option should RF communications fail because of interference or frequency conflict.




  
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Wilt
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Nov 16, 2014 09:26 |  #18

Trailboy wrote in post #17274701 (external link)
When I first had a 60d, I thought the lack of a PC connector was going to be a problem.

Never once have I thought this.

Radio trigger technology is now the far superior modus operandi in all circumstances.

Canon can cheap out on the camera feature, so that the photographer can spend a whole lot more money making up for what Canon chose to leave out to save a few bucks?! Next thing you know, they'll cheap out and leave out mirror lockup, like the did in SLRs.


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Trailboy
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Nov 17, 2014 04:08 |  #19

For the type of photography that I typically do, a cable connection to a remote flash is simply not an option whatsoever. I'm not having anybody ever trip over a cable and bring a flash crashing down on them. The potential for serious injury or disaster with a cable far far outweighs any potential benefits gained from a cable. Wireless or nothing.

The only benefit to an on camera pc socket is that I can connect a manual dumb radio trigger to it while simultaneously having a flash in the hotshoe of the camera.

If absolutely necessary, it can be added to my 60d for less than three UK pounds but takes up my hotshoe.

Mirror lock up. Micro focus adjustment. These are more important features to miss out on than a crappy, fickle, outdated pc socket, imho.




  
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Trailboy
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Nov 17, 2014 04:12 |  #20

hes gone wrote in post #17274747 (external link)
=he's gone;17274747]Have to agree. I liken it to Apple removing floppy drives on th iMac and later even CD drives on laptos. There might be some growing pains for some but ultimately it was the right thing to do.

I remember Sun microsystems removing floppy drives on their SparcStations.

Didn't know what the hell I was supposed to do for a while.




  
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grayline
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Nov 26, 2014 22:25 |  #21

From the 320 EX on has the capabilities of Slave flashing needs no trigger you can set up up to 3 and use simultaneously.. New DSLR's don't need a trigger


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gonzogolf
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Nov 26, 2014 23:35 |  #22

grayline wrote in post #17295374 (external link)
From the 320 EX on has the capabilities of Slave flashing needs no trigger you can set up up to 3 and use simultaneously.. New DSLR's don't need a trigger

Except for when they do, like the 1 series and full frame bodies thst dont have popup flash to serve as controllers ot for people who use studio strobes.




  
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StayFrosty
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Nov 27, 2014 00:23 |  #23

I like the floppy disk analogy, it's become the same in lots of areas in life. Cars no long have a "simple" carburetta you can tinker with but expensive complex injection systems you need specialist software to plug in to. They are much higher performance,more efficient, and more reliable though.

Being a relative newcomer to this (2 years with a dslr) it wouldn't even occur to me to get a PC cable. I just assumed is was some old school thing to keep legacy compatibility as even the cheapest flashes seem to have an optical slave mode.


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gonzogolf
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Nov 27, 2014 04:12 |  #24

The floppy disc analogy fails though because the best lighting systems in the world still make use of the PC sync system. Canon wants you speedlite dependent.




  
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nazmo
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Nov 27, 2014 04:16 |  #25

You can get radio triggers so cheap these days, no tripping over cables.


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StayFrosty
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Nov 27, 2014 04:38 |  #26

I've only ever seen a professional studio lighting setup a couple of times so I really don't know enough to comment, my observation was more about the way tech progresses and the older, simpler way of doing things often gets sacrificed for a more feature packed newer way.

Not wholly irrelevant anecdote:
A few months ago I was on a big brand name advertising shoot with a model and product plus various clients, art directors, account managers etc. The photographer was using a Hasselblad medium format camera and lots of lights, stands, and modifiers. (It was brilliant watching him work BTW). There were so many cables about for power and data that there was very real risk of tripping over a cable, in fact at the very end of the day's shoot an imac did in fact accidentally get it's power cable ripped out! (Ok, I admit it, it was me!!! The gaffer's tape had come loose over the day and I was distracted and kicked it. Luckily no harm was done but it left me feeling that less cables the better.)


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gonzogolf
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Nov 27, 2014 04:51 |  #27

No sane person would argue cables are better than triggers, but the sync cable is the fail safe solution. When triggers fail because of RF interference, or battery failure, or some other gremlin in the system the PC sync is an option.




  
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draderusa
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Nov 27, 2014 05:47 as a reply to  @ gonzogolf's post |  #28

The PC connection on the camera also allows for reliably firing two radio triggers to fire different brand lights, such as mixing my Canon 600EX-RT strobes with my Godox bare bulb equipment. The RT trigger occupying the hotshoe does not have a passthrough hotshoe. I know you can use the Yongnuo 622's but the 622C-TX has serious range limitations. And stacking the RT trigger on top of one of the pixel or vello hotshoe PC adapters like I used to do with my Rebel comes with it's own set of reliability and ergonomic related issues.

The camera PC port still has relevance and functionality in a radio trigger environment with no issue of tripping over cords.


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Nov 27, 2014 06:13 as a reply to  @ draderusa's post |  #29

You're in luck! The 622 has a screw lock PC cord for the cord purists. It also has a fully functioning ttl hotshoe that gives three ways of triggering a flash.

:D


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draderusa
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Nov 27, 2014 17:22 |  #30

hes gone wrote in post #17295737 (external link)
=he's gone;17295737]You're in luck! The 622 has a screw lock PC cord for the cord purists. It also has a fully functioning ttl hotshoe that gives three ways of triggering a flash.

:D

Not so lucky if I want to take advantage of the built in RT radio system in the 600 units or even make use of the 622C-TX which lacks a PC sync out. I was just pointing out a scenario where the existence of a PC sync output port on the camera was advantageous. Cord purist? Not so much. :):)


Dave
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The Canon 70D has no sync cable plug - how to fire my strobes?
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