Hi,my camera is a 2 or 3 year old Fuji Finepix S9500 and my flash gun is the Vivitar 2800 age?. Reading about flash trigger voultage and damage to the camera, my question is, can I use this flash gun with my Fuji S9500? Thanks, Syd.
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The old series Vivitar 2800 flashgun has a very high trigger Voltage, that can damage your D60's circuitry. Even measuring the trigger voltage with a voltmeter is not a solution since you can't rely on the voltmeter to indicate the peak voltage.
Hi Syd, Vivitar 2800 and 2800D are two different flashes. The first is an old flash, having high trigger voltage, which, as you will see, still can be used with your Fuji. The second is a member of modern flashes, having a low-voltage release. Manufacturers specify the highest applicable voltage at the trigger (hotshoe or PC) terminal; at most digital cameras it reaches several hundred volts.I believe, this is, what your seller was asking. As far as I know, Fuji doesn't mention this value in the user manual of the Finepix 9500, but I met reports of people, who called Fuji and asked that and the answer was 400 volts! So the short answer is: buy any wireless trigger if you have the 2800D, and tell the seller the flash has about 200 volts if your flash is an older 2800. I wonder if you did already use your flash with your Fuji? Laszlo
Originally the 45CT1 had high trigger voltage. In the production period Metz improved it to a much lower voltage release circuit. Metz homepage (metz.de) holds the information, from which serial number on have 45-CT1s low trigger voltage. However, even the high trigger voltage was lower than 200 volts, thus safe for your Fuji. Laszlo
Using Vivitar 3200A flash gun on a DSLR is risky for the following reason. The trigger voltage of a DSLR at flash hot shoe that takes it to its TTL (through the lens) circuit is less than 10 volts, it is about 6 to 8 volts in the recent DSLRs. The trigger voltage generated by Vivitar 3200A at full charge flashing is around 180 volts (max). That is a fatal dose for a sensitive DSLR TTL circuit. This high voltage flash gun will work endlessly, the only damage is to the TTL flash circuit. When you attach a TTL flash to the DSLR after using Vivitar 3200A for sometime, your TTL flash will not communicate with your camera. It will be just another ordinary flash without any auto functions. There is a Wein adapter that you can fix b/w your cameral hot shoe and the vivitar flash gun that is said to reduce the trigger voltage that passes into the camera. Try it if you get it. Without this gadget it is better not to use non recommended and non TTL flashes on latest DSLRs.
The Vivitar 283 was manufactured in China & Japan over a number of years & the specifications did change over this period.
The older Vivitar flashes had a voltage on the shoe which could reach 150 volts whilst the later ones had voltages of only 5 to 9 volts.
If you have, or can get hold of, a small voltmeter then you can measure this voltage.
Turn on your flash & let the unit charge up to 'ready' & connect the meter between the contact in the centre of the shoe & the little contact tucked away in the lip of the shoe. (DC volts not AC) There is no danger to you in doing this!
This should tell the voltage on the shoe of your unit & if it is 15 volts or less, it will be fine with your digital Nikon camera. If more than 15 volts than best not to use it.
Please check the trigger voltage. What, how do I do that, you said!!!!!!!!!?
Here they are:
1. Four fully charged or new batteries into 283. 2. You needs a DVM (Digital Volt Multimeter). 3. Set DVM: DC scale, higher than 10 scale. 4. Black Lead to black DVM and Red Lead to red DVM. 5. Turn ON the Vivitar 283 and wait until light turns Green. 6. Place Black Lead to Outside Silver Contact of the flash. 7. Place Red Lead to Center Silver Contact of the flash. 8. What is the voltage reading? Read the max. V. 9. Anything under 8VDC will be fine. 10. Some versions will be high.