Fujifiilm’s lens division Fujinon has introduced an ultrawide-angle zoom for its medium format GFX mirrorless cameras. Kevin Carter looks closer   Fujifilm’s GFX medium format cameras offer the compactness of mirrorless with the benefit of a generous 44x33mm sensor, so thumping great big lenses for full-frame 54x40mm 645 DSLRs is becoming less of a thing.  Indeed, as Fujinon used to supply the components for Hasselblad’s now discontinued HC/HCD models for the H series cameras (which were then assembled in Sweden according to my contact at Hasselblad), it’s little surprise that they’re not only filling that void but expanding what’s on offer with their brand of lenses. These GF lenses don’t…