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| Camera and Studio Accessories Talk about flashes, focusing screens, memory cards, lighting, and other accessories for Pentax cameras here! |
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| 11-15-2008, 09:41 AM | #1 |
| Pentaxian Location: Windsor, Canada Gallery Photos:
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Posts: 3,059 | Vivitar 283 and 285 and ringflash voltage I spent a little of today documenting the voltages of my flashes and some of them are real woppers... 263 volts... ouch! Vivitar 283 and Vivitar 285 voltage Et cetera!!! |
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| 11-15-2008, 10:24 AM | #2 |
| Pentaxian Location: Brisbane, QLD, AUS Gallery Photos:
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Posts: 1,924 | Behold! The GBFO List of Flash Trigger Voltages! Photo Strobe Trigger Voltages Some of those are insanely high. I think (DO NOT quote me on this!) the K20D can handle high voltages, but I don't know if that's just through the PC Sync terminal. |
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| 11-15-2008, 11:00 AM | #3 |
| Site Supporter Location: SoCal Gallery Photos:
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Posts: 237 | Originally Posted by JCSullivan Can you folks explain how I can measure the voltage on my flashes? I have a multimeter but want to know the procedure for checking.
I also have Vivitar 283 and a couple of Vivitar 285 as well as a Nikon SB-24. I note that the SB-24 apparently has <6v according to the trigger voltage link but I want to check or myself as I don't want to 'fry' my camera. thx |
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| 11-15-2008, 11:56 AM | #4 |
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Posts: 182 | It's pretty simple. Grab a voltmeter, and apply one probe to the center contact on the shoe, and the other probe to the other contact on the side of the shoe (point the flash away from your eyes). If you get a reading in negative numbers, reverse the probes. Read what the voltmeter says (ie 200 volts), and then, while keeping the probes attached to the contacts on the flash, fire off a couple of test pops, and read the voltage throughout the test. |
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| 11-15-2008, 08:00 PM | #6 |
| Site Supporter Location: SoCal Gallery Photos:
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Posts: 237 | Originally Posted by geauxpez thx!
I did ask on a separate thread specifically about using Nikon flashes and was told that it would be fine. I do however also want to check my 283/285 flahses. I've also got a Pentax AF400T and was wondering about it's compatability with the K2000/k200d/k20d bodies. Keep in mind that I've yet to get a DSLR and just want to be prepared when I do!  Last edited by PentHassyKon; 11-16-2008 at 08:52 AM. Reason: clarify 1st sentence |
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| 11-16-2008, 07:12 AM | #7 |
| Pentaxian Location: Windsor, Canada Gallery Photos:
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Posts: 3,059 | Jeff Geerling has a very GOOD tutorial here Measuring the Voltage on a Vivitar 285 or 285HV Flash Head - Life is a Prayer.com Lithos, what is a GBFO???? Or you trying to be funny! |
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