+1 for DNG format support.
I just started shooting aerials with a Ricoh GR and DNG seems great for catching additional detail in shadows, which seems like it gets lost when converting to 8-bit JPG, and if I do 16-bit tiff it's about 80MB/photo, while DNG is about the same size as JPG (10-15MB)
It seems like for SFM work it probably wouldn't matter if images were demosaicked or not, or if they were dark, so long as the relevant detail is captured in the embedded "RAW" tiff.
Andy