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06-19-2007, 07:58 AM   #1
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Vivitar 283 w/ *ist DL??

I'm in a certain quandry here, if anyone can afford some help.

I currently use a *ist DL and it's onboard flash. I have the ability to use an old Vivitar 283 from an old Pentax SLR.

What I'm concerned about it the voltage/surge from the flash destroying my internals/circuits.

Can anyone help me out? Do I need the voltage regulator/protector? Flash by itself ok? Stay clear?

Thanks all...


EDIT: I just bounced this off some other collegues and one of which said the voltage doesn't travel through the camera. Can someone confirm or deny this?

Thanks.


Last edited by hyson; 06-19-2007 at 11:17 AM. Reason: New info
06-19-2007, 02:56 PM   #2
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The 283 will fry your camera. That is to say, the probability is high that it will do so. The return voltage on a 283 is huge! When I plug mine into a radio receiver with the unused stereo jack uncovered I get zapped good when I touch it. I can't speak to how far into the camera that unwanted voltage goes, but it has been said that it can fry circuit boards. Not worth the risk in my opinion.

There are a few voltage regulating hot shoe to PC adapters out there. Wireless is the direction I went. The hot shoe adapters usually offer a new shoe to place the flash on the camera, if you are inclined to do so.
06-19-2007, 03:26 PM   #3
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Put on a Wein cell voltage regulator. My 283 measured over 400volts. I have been told later ones were low voltage but I don't know the SN's
06-19-2007, 08:39 PM   #4
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QuoteOriginally posted by ully Quote
Put on a Wein cell voltage regulator. My 283 measured over 400volts. I have been told later ones were low voltage but I don't know the SN's
The vivitar 283's with the high voltage are the early ones. Since about 1987 (made in China/Korea) they have been low voltage - 5-10 volts.

Larry

06-19-2007, 09:07 PM   #5
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You could try a voltmeter to measure the voltage generated by your flash. But its still not a foolproof guarantee.
06-19-2007, 09:47 PM   #6
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Hyson,

Here's a link given to me in an earlier post...

Photo Strobe Trigger Voltages

Vivitar 283, as others have mentioned, would not be safe to use with your cam.

I'd go wireless with a Wein connected to the flash to be safe, or better yet, get a different strobe.

Happy shooting!
06-19-2007, 10:30 PM   #7
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Why get a different strobe? I have two 283s and a 285HV and use them regularly. In fact for studio stuff I use my Vivitars more than my 540fgz.
06-20-2007, 09:20 AM   #8
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The 283's and certain 285's (the ones without the HV in the name) will probably ruin your camera.

the 285HV is a nice flash....I have two of them...for off camera I use pocket wizards....on camera of course I shoot manually....the only drawback...no swivel...but hey, that's life.

You need a flash with 6volts or less, and the new 285HV's are about that.

06-20-2007, 01:18 PM   #9
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Original Poster
Thanks for the replies, everyone.

The one I have access to says "Made in Japan" so I'm staying clear. No reason to use a flash that I don't really need right now.

What a great resource this place is.
06-20-2007, 10:42 PM   #10
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Answers to Your Question..

RiceHigh's Pentax Blog: Which Flash Units are Safe for Pentax DSLRs?

QuoteOriginally posted by hyson Quote
I'm in a certain quandry here, if anyone can afford some help.

I currently use a *ist DL and it's onboard flash. I have the ability to use an old Vivitar 283 from an old Pentax SLR.

What I'm concerned about it the voltage/surge from the flash destroying my internals/circuits.

Can anyone help me out? Do I need the voltage regulator/protector? Flash by itself ok? Stay clear?

Thanks all...


EDIT: I just bounced this off some other collegues and one of which said the voltage doesn't travel through the camera. Can someone confirm or deny this?

Thanks.
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