A community site for free software photography, with tutorials and interviews on darktable, GIMP, G'MIC and raw processing.
HN commenters recommend its darktable 3 RGB-versus-Lab guide and GIMP tutorials, and point to its lens calibration instructions for Lensfun.
TLDR; lies.
Kindly substantiate your claims.
DT has a clone tool. It's part of the retouch tool.[1]
Which is very powerful and allows way more than just cloning. It is also non-destructive, like anything in DT.
DT has camera profiles, new cameras get added regularly.
You can also create them yourself if you have access to a color checker using a built-in tool.[2]
DT has tons of lens correction profiles. Basically anything you find in lensfun.
If your lens is missing, lensfun has a service where you send images and they send you the calibration data back and add it to to their database.[3]
I shoot (often exotic) manual glass most of the time.
If someone tells me DT is lacking in this regard it's a good indicator for me they have no clue what they are talking about or never used the app seriously.
UI: it could see improvement in terms of parameter exposure (no novice/simple mode) and ranges (some sliders go from 0..1, others from 0..100%) but otherwise?
What in the UI is prehistoric?
The catalog part of DT is also great. i.e. when your catalog is on a slow network or cloud drive DT can automatically cache RAWs locally and send back the XMPs with the edits only.
Caveat: I regularly get paid for photography work (it's not fulltime but give I worked professionally in blockbuster VFX for two decades I think I qualify).
I do all my processing in DT. If I have to do compositing work beyond that I export to Fusion.
[1]…
There's some nice GIMP tutorials here with good showcasing.
https://pixls.us/articles
I believe written by GIMP contributors.. including Pat David who did a ton of older and a bit less polished ones here:
https://patdavid.net/getting-around-in-gimp/ (for example this good one from 2012 https://patdavid.net/2012/08/getting-around-in-gimp-heal-selection/ )
Workflow changed with darktable 3 and to get the most out of it I recommend reading this article: https://pixls.us/articles/darktable-3-rgb-or-lab-which-modules-help/
Many modules - that still work - are now deprecated in favour of RGB workflow new modules. The article above suggests proper alternatives for each of them.
If you have time and wish you can add them yourself:
https://pixls.us/articles/create-lens-calibration-data-for-lensfun/
https://www.discogs.com/
https://pixls.us/
https://www.ifixit.com/
https://forum.f-droid.org/
https://indiewebify.me/
Obligatory: https://pixls.us/articles/darktable-3-rgb-or-lab-which-modules-help/