Oh nice! I love the pics that my DP2 Merrill spits out, but making Merrill raw images work out of the box in Darktable is probably never going to happen.

The Merrill X3F files have some additional magic needed; it was something that the Kalpanika tools kinda sorta handled, ish. I think everyone has given up and moved back to Sigma Photo Pro. Which is what I do, SPP is just a TIFF converter and then the rest happens in Darktable. I’m not a purist, this is good enough for me, though it’s an extra step. The Quattro files don’t have this weirdness.