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11-05-2010, 04:38 PM   #1
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K5 and Vivitar

I'm new to this so may be going in the wrong direction with my question. This looks like something I'll use often. I don't know why I haven't been all along.

Anyway - My new K5 arrived Monday and I'm being cautious. I have a Vivitar 730AFPX flash I used on my 35mm ZX-5N and later used on my ist DS with no problems. I contacted Pentax Chat who advised they have not tested the combination. In contacting Vivitar I discovered they no longer exist as Vivitar and apparently are not supporting older equipment.

Do you or anyone on the forum know anything about this flash unit and its adaptability to the K5.


11-05-2010, 04:45 PM   #2
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I suggest you test the voltage on that thing before sticking it on your K-5.
I don't know the threshold of the K-5. Its probably somewhere in the manual.
You wouldn't want to fry your electronics...
11-05-2010, 08:03 PM   #3
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QuoteOriginally posted by Flickeroo Quote
I suggest you test the voltage on that thing before sticking it on your K-5.
I don't know the threshold of the K-5. Its probably somewhere in the manual.
You wouldn't want to fry your electronics...
I don't think that Pentax has ever officially disclosed the maximum trigger voltage that their cameras can safely handle. The concensus is, the lower the better, but no more than about 25 volts. Some old flashes can have a trigger voltage of 200-300 volts, which is more than enough to fry the electronics in your camera.
11-05-2010, 08:35 PM   #4
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I've been using the Vivitar on my ist DS for several years w/o a problem. Looking in the V manual I find no indication as to the trigger voltage. I'm not wanting to fry this really great camera so will put off trying it on the K5. Thanks for the comments.

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