Can I use a Canon speedlite 188a with a Nikon D40? It fits onto the Nikon just fine, but I don’t know if they’re compatible with one another. Does the voltage of the speedlite matter? What settings does my Nikon need to be on? http://www.botzilla.com/photo/strobeVolts.html The voltage won’t be an issue (it’s within acceptable limits) [...]










