This might not apply to many here - but does to Linuxers with Fuji HS10s.
We now have DCRAW 9.03 in our Distro's Repos, so assume that other Distros do too, or very soon will.
To get it working in Digikam for the HS10 RAF RAWs, first do a Reload on your Synaptic, etc, and check via Search for DCRAW 9.03 (etc.)
Digikam will pick it up - or, if Digikam isn't installed, install from the Repository after the Reload and checking for DCRAW 9.x.
Import your Folders or Files into Digikam, and proceed. After doing the WB, denoise, and other adjustments, Digikam will save to 8 or 16 bit TIFFs.
In the Image Editor go to > Colour > Depth - and select 8 or 16 bit before working on the File.
If you don't need to Save As TIFF, there are 18 other options.
- Edit: With latest Distro updates, DNGconverter now converts HS10 RAFs to DNG. Also Batch converts, and leaves the RAFs intact in the directory with the DNGs.