It's in the XF camera body. Personally I"m not sure I trust it, it seems to fire way to fast after I push the button, like nearly instantly. I've calibrated it but at this point I've gone back to just letting it count down. I think the feature would be better if you could add a delay, so after the seismometer decides it's still enough it would wait another "x" seconds.I was also surprised at how quickly it triggered, but then, you probably as I do, shoot with the mirror up and let it settle down a bit before you even press the shutter, so well ahead of the curve already.I do miss the remote shutter release however. P1 was supposed to make a small adapter to fit on the old electronic release, but I haven't seen it yet. This also would add a bit stability to the shot if used.
