There are one or two years Hasselblad said that the exposure time in the series H3D will be possible up to 64 seconds with a new firmware
... and no news since
Do you know something about it ?
I am more interested by 25 or 50 ISO than 800 or 1600 but of course it will be fine too
I use 200 ISO at night and 50 or 100 all the rest of the time
I think that I use ISO 200 only because of the batteries at night they die after 8 or 10 shots
I talk about PhaseOne P45