There's a nice little review of the Fuji 56mm f1.2 here...
http://www.amateurphotographer.co.uk/reviews/lenses/129541/4/fujinon-xf-56mm-f-1-2-r-review
and this caught my eye...
"Now Fuji needs to introduce shorter top shutter speeds and lower ISO settings to cope with the amount of light this 56mm f/1.2 gathers, so we can use it wide open outside too!"
Hallelujah! I've rarely seen this mentioned in reviews but it's a direction that I've wanted CSC's to go in since beginning my love / hate relationship with them. They have some lovely wide aperture lenses that are sharp wide open (not always the case with DSLR lenses) but are often hobbled with a base ISO of 200 and a max shutter speed of 1/4000 making wide aperture shooting difficult in daylight unless you use ND's (I hate juggling them) or don't mind blowing your highlights to kingdom come.
I don't want to give the impression that I'm Fuji bashing as I'm not as my complaint is with the majority of CSC's not specifically Fuji. I have looked long and hard at Fuji reviews but for a couple of reasons at the moment I'm an A7 and Panasonic MFT user and the latter is also to a degree afflicted with the same issues as the Fuji when trying to shoot with wide apertures.
Anyway. I'd like to see more reviews highlight this issue and I'd love to see Fuji and the others offer a base ISO of 100 if not 50 and a max shutter speed of 1/8000.