Post by rootI have a photographer friend who has used Photoshop and Lightroom for
Windows. She is increasingly unhappy with both Win 10 and the Adobe
products. She has marginal facility with linux but none with
Gimp or any other alternative to Photoshop.
Would Gimp be an acceptible alternative to Photoshop/Lightroom
for a professional photographer?
This very heavily depends upon just how much of Photoshop's
capabilities your friend uses, as well as how much "aversion to change"
disease she exhibits.
If she expects GIMP to be a perfect clone of photoshop such that she
has zero learning to do in order to be productive (i.e., a huge level
of "aversion to change" disease) then she will have difficulty.
If she uses some of the very esoteric features of photoshop, then there
very well may be one or more features that GIMP simply does not do (or
do well or simply) and that might also impact her viewpoint.
But in *every* case where GIMP has an identical feature to Photoshop,
GIMP will likely differ in how it accomplishes the feature (or even in
"where" the control is found within the UI) all of which get in the way
of those expecting it to be a drop-in clone (i.e., those with "aversion
to change" disease).
So the best thing you can do is set her up with a copy of GIMP somehow
(either GIMP for windows on her existing system or a second system with
GIMP for Linux) and have her do a serious evaluation. Because in
reality only she can answer the question of "would GIMP be an
acceptable alternative to Photoshop" (and this assumes she does a real
evaluation instead of a knee jerk emotional reaction to change).