Merry Christmas!
First shot with my new H4D-50, back mounted on a Linhof Techno using SK47XL. Won't be much shooting for a while as my external Silvestri battery is bad, it only holds power for 10 minutes or so. Due to the hollidays it will take a while before I get a replacement. The back seems to handle the -20C temperature without problems though.
Meanwhile I'll try to figure out the calibration data format in the 3FR file format, unless Hasselblad sends me the spec (unlikely, but I've at least asked). The attached image is processed in RawTherapee, but converted to FFF first in Phocus to get calibration data applied. RT opens 3FR too but as calibration data is not applied the result is not that good.