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Wireless flash


ChrisJP 6 811 Wales
23 Feb 2011 9:49AM
I have a Canon 350D and a 300TL flash from a T90 also an old Vivitar 283. Whilst I realise that I cannot use either mounted on the 350D hotshoe can I use an independant wireless trigger, one on camera and the flash on the other, with the flash on a bracket attached to the tripod bush?

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User_Removed 4 4.6k 1 Scotland
23 Feb 2011 9:57AM
I did not realise that Canons were so backward-incompatible. I would have imagined that you could use any older Canon flash plus most generic non-Canon flashes on your hotshoe, albeit that some of the automatic exposure functions may not fully operate.

Certainly I can use a 30 year old Sunpak flash on my Nikon dSLRs' hotshoes and, conversely, use a modern Nikon SB600 flash on my old FM2n 35mm film camera.

Mind you, we "oldies" were well accustomed to doing guide number calculations.
User_Removed 4 4.6k 1 Scotland
23 Feb 2011 9:58AM
...having said that, of course, remote triggers are a good idea anyway for using flash off-camera.
RogBrown 7 3.0k 10 England
23 Feb 2011 9:59AM
Do NOT use old flashguns on digital cameras! Apparently the voltages (or something) are different & can fry your camera's electronics.
User_Removed 4 4.6k 1 Scotland
23 Feb 2011 10:07AM

Quote:Do NOT use old flashguns on digital cameras! Apparently the voltages (or something) are different & can fry your camera's electronics.


Nikon don't flag this up as a potential problem and Ken Rockwell (much despised on this Forum, I know) OK's it.

But maybe check out with Canon themselves before risking it.
RogBrown 7 3.0k 10 England
23 Feb 2011 10:21AM
There's been loads of threads on here about it. Try a Forum search.
RogBrown 7 3.0k 10 England
23 Feb 2011 10:24AM
Here's one.
ChrisJP 6 811 Wales
23 Feb 2011 12:05PM
Thanks, but unfortunately that doesn't answer the question about using these 'older' flashguns on a wireless remote. I know I cannot use them on camera.
digicammad 11 22.0k 37 United Kingdom
23 Feb 2011 12:07PM
There is no reason not to use an old flashgun as a remote Chris. It may just take a little more work to get the exposure right as you will probably have to drive the flash manually.

Ian
RogBrown 7 3.0k 10 England
23 Feb 2011 12:16PM
My comments were mainly directed to LeftForum who appears to be using an old Sunpak on his DSLR.
digicammad 11 22.0k 37 United Kingdom
23 Feb 2011 12:19PM
My comments were mainly directed at the original question. Grin
Mayfly 9 485 2 United Kingdom
23 Feb 2011 12:46PM
I use some old Sunpak Auto 4000 heads with a set of ishoot radio triggers. I picked them up from Amazon at a cost of about 30 quid. The Sunpak's can push out 350-400 volts whereas most modern Cameras run (trigger)at 6volts (ish).

The ishoot triggers are rated at 12 volts max but as they were fairly inexpensive (got two rx and 1 tx in the set) I thought it would be ok to risk one rx getting fried.

Pleased to say that I have been using the set to trigger the Sunpaks off camera remotely for over a year with no probs at all. I get the odd missfire, maybe 1 in 100 frames which for the cost I find acceptable.

Look them up it may be a cheap solution, they would probably work with your Vivitar 285 and 300 TL.

Andy.
JackAllTog e2
5 3.7k 58 United Kingdom
23 Feb 2011 12:50PM

Quote:I have a Canon 350D and a 300TL flash from a T90 also an old Vivitar 283. Whilst I realise that I cannot use either mounted on the 350D hotshoe can I use an independant wireless trigger, one on camera and the flash on the other, with the flash on a bracket attached to the tripod bush?


Radio triggers can get expensive 20 to 200, also you may take a look at optical slave triggers of line of sight from one flash to another is possibe.
ChrisJP 6 811 Wales
23 Feb 2011 12:55PM
Thanks. Reason I was asking is 'cause I'm too tight/can't afford a dedicated flash gun and I have these two lying around unused. Thought if i could use a wireless release then at least I could put them to use again. Just worried that I might fry the wireless units due to the trigger voltages. Seen a couple on Amazon for under 20.
66tricky 8 742 Scotland
23 Feb 2011 1:11PM

Quote:Do NOT use old flashguns on digital cameras! Apparently the voltages (or something) are different & can fry your camera's electronics.

Nikon don't flag this up as a potential problem and Ken Rockwell (much despised on this Forum, I know) OK's it.

But maybe check out with Canon themselves before risking it.



Vivitar 283s had a "shocking" trigger voltage (c 300V) and early models could quickly fry a dSLR. Indeed, the hight TV was also known to burn out the flash trigger contacts on many film SLRs. Avoid unless you trigger wirelessly. Great flash units but not healthy for today's gear unless you know it's a later model or has been modified to lower the trigger voltage.

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