Is Ver4 availabale to download again, I know the backdoor got shut, but I havent got a email or anything about upgrades? Don so a 0.3 step and a 0.7 step would = a full 1 step, so a bracket of 3 shots at 0.3 and a bracket of 3 at 0.7 steps would give you 6 shots to choose from and or layer for a overall of 1 woud that work? be way to complex? and I guess motion blur and positional shift would ruin it. just trying to get my head around some HDR concepts.