Quick reply...
Fcam-drivers and Fcamera are in free repository - why are hdrcapture and lowlight in non-free repository?
I have tried HDR with time-lapse (modified Fcamera), and it was too yellowish bright after I got them together in GIMP.
I have taken three photographs (-2,0,2 exposures) with default camera and combined them in GIMP in the same way - surrealistic photograph. The lamp was bright lit, so I protected my eyes by looking only at the screen.
It would be more comfortable if there was an HDR-taking plugin of the default camera; then there would be less time between the photographs.

Attached center of the photograph.