For example, your choice of demosaicing method can make a tangible difference in finer details: some methods would make them less noisy (better for some styles), others would better preserve finer details (better for other styles). Abstracting it behind one “more detail—less detail” slider isn’t going to work because “detail” can mean a multitude of things, of which sometimes you want one and not the other, and inventing new sliders with user-friendly but inscrutable labels a la “brilliance”, “texture”, and so on, can only get you so far.
There are shades between simplicity vs. control, of course, and so I am curious to know the answer from the horse’s mouth so to speak: to what end they choose to compromise simplicity.
Almost no professional photographer will care about the intricacies of the demosaicing algorithm, or the choice between a dozen different denoising modules, and Lightroom is entirely correct in not giving you a zillion knobs to adjust things that have no effect on image quality except in the rarest of cases. In 99% of cases the controls that matter are:
* Basic exposure/shadows/contrast etc
* Curves/levels for more control if needed
* White balance
* Cropping, obviously
* Cloning/healing brush
* Simple knobs for sharpening and NR
* Level/perspective adjustment
* Lens aberration correction (most of the time no manual input needed if the lens is in the batabase)
If the white balance is set wrong in-camera, then the JPG just came out all blue. It's effectively a black and white photo (albeit in shades of blue), and there's nothing to be done about it. Shot in RAW, the photo can be made color again, extremely easily and quickly.
In fact it gets worse, not better, if you on the day try to adjust the white balance, as you go from outdoors to indoors. Not to mention if you change from flash and back. Auto is safer, but when it's wrong, the photo is unusable, and the moment is gone.
But my DSLR is now over a decade old. Maybe "auto" has gotten much better?
So yeah, for me the main thing is to be able to post facto adjust white balance, which JPG does not support. (if you've done it with both JPG and RAW, you know what I mean when I say "does not support")
The camera makes all those decisions even when shooting raw -- and there are stored in the raw file. So, by default, processing a raw file witout doing any tweaks will get you the jpeg you would have gotten.
My camera (Nikon) -- and I assume the others -- will even store both the RAW and the JPEG, so you don't even have to go through the automatic conversion step if you don't want to.
RawTherapee I uninstalled almost immediately because it crashed a few times and the UI didn't seem to jive with what I wanted to do.
Despite DarkTable's horrific interface and hostile developers I keep it around because I can often beat it into submission (but what a chore that is). And that's the thing. Even if I were shooting JPEGs DT's interface would still be a problem.
I much prefer the control darktable gives me now.
This is a bit of a myth.One of my complaints dealt with how unintuitive the sliders are. There's no additional control gained by making the UI widgets difficult to deal with.
Another dealt with trying to set color temperature. There are two places color temperature can be set and they'll both conflict with each other. The newer module is absurdly complex. It's great if you're writing a dissertation on color rendition but less great if you're trying to be productive.
Sure there's more control offered by having ten different demosaicing algorithms to choose from. Unfortunately I can't think of a time when I've needed or wanted that control. Maybe if I shot Fuji or Sigma. But I don't. And most folks don't.
Presets and history are a nightmare. Items in the history widget get aggregated so it's difficult/impossible to pick out individual steps. If you give labels to the actions in a preset (my terminology is off because I've not used DT much in a while)… sometimes they work. Sometimes they don't and things don't appear to pick up the label/group/whatever it's called. If memory serves I had to apply presets in one module to have them visible in the develop module.
The vestigial DAM stuff… ugh.
There's no obvious A/B split views.
Perhaps the most obnoxious thing is that DT shamelessly apes the Lightroom interface but in reality behaves almost nothing like Lightroom. There's a TON of complexity for little-if-any improvement in outcomes.
If you look at CaptureOne you can see how easy it is to edit a raw image. Most of the time it looks like the camera jpeg without having to tune anything. But then you have the options to go in depth.
Sometimes I have a photo session where everything is to my liking, just a bit of exposure and crop. Other times I shoot in night clubs with no flash and I have multiple layers of masks for a single photo.
A UI with decent defaults goes a long way into making a complex app easy to use.
DCP Tone curve
DCP Base table
DCP Look table