fors_photometry(7) on Linux
The text 4eb4764a4222, as Debian 9 (Stretch) shipped it.
Compute corrected flatfield
Flags it lists
-
--degreef1 -
--degreef2 -
--degreep -
--fit_all_mag -
--fitc -
--fite -
--fitz -
--use_all_stars