Nikon D3100 flash unit ?
I have recently got a canon Eos Rebel ti 35mm and just now a Nikon D3100. Today i picked up a Promaster FTD-5600 Dedicated Flash at a used store for $15 and it seems to work fine with both. Being new with photography is there any issue with using this with a digital camera etc. Also any tips for using the flash unit would be much appreciated.
http://www.botzilla.com/photo/strobeVolts.html is usually the place to check for compatibility. Your flash isn’t listed, but other model numbers around it appear to be safe for Canon cameras (limited to 5 or 6 volt trigger voltage). Find someone with a voltmeter and measure the trigger voltage on the flash to be safe. The above link has instructions on how to measure the trigger voltage.
On the D3100, according to the manual (page 172), it is rated for 250 volts, so you’ll probably be OK with the Nikon.
