Originally posted by Shanti Hi can I use Olympus E flashes or Nikon on the K5II? or can it short circuit something..thanks
I cannot speak for Olympus, but I use film-era Nikon SBs (ala strobist) flashes on my Pentax bodies in auto mode with no problems. While the older Nikon SBs are plentiful, the strobist site has made them so popular that they have become stupidly expensive.
Most do not worry about the extra pins that do not align properly, but I removed the foot and de-soldered the extra pins, leaving only the center pin.
I find that, in many cases, auto works better than P-TTL, but HSS and some other P-TTL features will not work, and they can be useful at times.
I think that you should be able to make almost any strobe with an auto/manual mode work on your Pentax body.
Ray