I read in Kevin Raber's review of the X1D that the X1D had "shutter lag." After the X1D I ordered arrived last week, I did some shooting with it and really did not detect what I would describe as obvious shuttler lag. I think there is likely a perception of shutter lag because the leaf shutter makes three distinct clicks after the shutter is depressed. However, the first click is quite instantaneous, the second click follows quickly after the first click, and the third is quite delayed. While I am not sure exactly what is happening, I did a Slo Mo Video of a stop watch with my iPhone with a Nikon SB-700 flash mounted on the X1D and, as best as I can tell, there is a delay of about 10 one hundredths of a second or 100 milliseconds between the shutter being depressed and the exposure. This a relatively crude test, but it is the best I could do. By way of comparison, a Canon 1DX has a delay of 43 milliseconds, a Leica M9 has a delay of 80 milliseconds, and the Hassy H has a delay of 160 milliseconds. So, while I am not sure quite yet, the issue of shutter lag on the X1D may turn out to be a Red Herring. At least for my use cases, it is a total nonissue.