Are you specifically looking for a tool that takes RAWs as input? If not, keep reading…
Hugin does a really good job of taking multiple shots and creating a file (TIFF) that can be handled with darktable, RawTherapee or any other editor. The possible downside being that Hugin does not except RAWs as input, 16Bit TIFFs work rather well, though.
If I feed your 3 RW2’s to darktable, create tiffs and feed those to Hugin I get a workable tiff.
Here’s a really quick edit using darktable and that tiff file:
rtout.P1210701 - rtout.P1210703_stack_ldr_0000.tif.xmp (8.1 KB) dt 3.8.1
I did not pay any attention to specifics in the above example, this is just to show what can be done out-of-the-box. To get a (much) better result:
- Take the time to set up the input tiffs in the first step the overall result will be better.
- Hugin can deal with the ghost (moving person in foreground) and some other details, which I did not bother with.
- My above result is a really quick darktable edit just so it is presentable.
Doing all this correct is a timely process, but if you take your time the end result will be worth it.
EDIT: Added the dt version used and the sidecar, just in case.