@patdavid has written tutorials many years ago:
https://patdavid.net/2013/01/focus-stacking-macro-photos-enfuse/
And there are some articles on the main pixls.us site:
- PIXLS.US - Aligning Images with Hugin
- PIXLS.US - A Blended Panorama with PhotoFlow (and Hugin: PIXLS.US - A Blended Panorama with PhotoFlow)
- PIXLS.US - HDR Photography with Free Software (LuminanceHDR)
For focus stacking:
- focus-stack 1.4 is availabls
- MacroFusion - rewritten in TKinter (and this thread: Focus Stacking Porn (Not really....))
I just use Hugin for panoramas, and sometimes align_image_stack
and enfuse
from scripts to merge exposure-bracketed JPGs from the phone.