Originally posted by donlass Would you suggest any Legacy flashes?
Simply no. I have been using system flashes ever since Pentax came up with flash TTL in 1983 and I have always enjoyed the hassle-free usage of system flashes.
Now that Pentax has moved on to P-TTL, there is no point in purchasing a flash that doesn't support P-TTL (which includes all older Pentax flashes up to the quite good AF-500 FTZ).
Using flashes in the classic "Auto" mode is a pain, as this means that a small sensor in the flash tries to guess the amount of light needed - but this works well only if you do not use a tele lens or anything else that deviates from what the sensor expects.
Using flashes in TTL mode is not possible unless you use old SLRs or one of the 3 DSLRs capable of TTL (*ist D, *ist DS, *ist DS2).
Using flahses in manual mode is what most professionals do, but this requires a lot of thinking and experience.
Therefore my recommendation simply is invest the money and get a P-TTL flash from Pentax or Metz.
Last edited by UMC; 09-23-2016 at 01:41 AM.