Hello Kalaci, First, I would like to thank you for your help with trigger voltage compatibillity for my camera and flash gun.
I wish to buy a wirless trigger but the seller needs to know the trigger voltage of my fuji finepix S9500 and the voultage of my Vivitar auto thyristor 2800.
Would you know the voltage for both or could you tell me where I could find them?
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
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It is not possible to use the Nikon SB-50DX directly on a Canon EOS Rebel camera. The Nikon flash gun hot shoe contacts do not match the Canon hot shoe contacts. You can use the Nikon as a slave flash gun with a PC flash cord that matches the Nikon's flash contacts then connect the end of this flash cord to a flash trigger. The Canon's flash can then trigger the Nikon flash gun via the flash trigger.
A flash trigger voltage in the 250V range is fine for most film cameras, but not for most digital cameras. The PE-300 has a trigger voltage in the 33V range, which I (and most others) would consider much too high for the D80. BTW, "National" is a brand name used by Panasonic.
When using a digital camera with a flash unit of unknown trigger voltage, you are risking the life of your camera. Excessive trigger voltages can disable the cameras internal circuitry to the point where it is totally beyond repair.
I do not have, in my files. the trigger voltage for the specified flash unit. I only have the specs for larger portables and studio flash gear.
A simple test , however, will reveal the exact trigger voltage. If you have a multi-meter or a DV voltmeter with a 250 VDC range (just to be in the safe side) you can preform this test at home or an electronics service technician can do it for you in a few minutes.
The test lead are placed across the synch contacts on the foot of the unit or plugged into the sunch socket if the flash unit has one. If the reading is more that 4 or 5 volts you can still safely use the flash with the aid of a protector device which goes in between the flash and the camera. Theses are available at better camera shops and dealers.
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.