Question about Pentax AF-500 FTZ TTL Flash
I Have a Pentax K100D which I wish to use this flash on. Many thanks.
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.
Posted on Dec 01, 2008
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