You’ll need to provide concrete feed back about what you’d improve if you actually want to see improvement. “I think it could be better and I’m disappointed” doesn’t help.
If you’re talking about looking at bigger images rendered from the embedded jpeg, then you could try this:
- go to Options>File Browser>Cache Options
- change the Maximum thumbnail height to something like 700 (that would allow you to show images as big as 700 px height in the File Browser)
- go to the File Browser and hide both side panels (shortcuts l and alt-l)
- click several times the Increase thumbnail size button until you see the images big enough (in a 1920px wide display, that height means you will see a couple images, almost filling the display)
The render won’t be as good as a true demosaiced raw, but for culling images should be enough.
If that’s not what you’re talking about, as @paperdigits said, please explain what you need and what RT does that doesn’t fill your needs.
I tried large thumbnails, and they don’t cut it for culling images. 700px is not even large enough to confirm the image is even in focus.
I am curious if there is a geeqie alternative that supports both Linux and Windows…
sorry for the shameless plug, but it seems to me that ART might have what you are looking for.
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I can confirm that ART will get you much closer to what you want with its enhanced Inspect tool. The only feature I think it needs for better culling would be a side-by-side comparison feature so you can quickly compare two similar pictures and choose the best one.
Hello @europlatus
The only feature I think it needs for better culling would be a side-by-side comparison feature so you can quickly compare two similar pictures and choose the best one.
I agree!
This feature would be extremely useful indeed 
At present, you can synchronize the pan - zoom of 2 similar pictures with Digikam or FastStone viewer [1].
It is not possible to do the same with RawTherapee and Darktable.
Btw, I have just tested nomacs. It is pretty fast on Windows 10.
Many thanks to @paperdigits for suggesting it 
[1] FastStone Image Viewer - Powerful and Intuitive Photo Viewer, Editor and Batch Converter
I am confused, what is ART? Is there a more informative homepage (github) that you can link me to?
I gave nomacs a spin, and doesn’t seem to cut it as a culling tool. You can view images fast, but there are no real features for culling them afterwards.
Geeqie was really good for this, but I hate to use tool that are not cross platform.
I use Gwenview with 4 adjacent shortcuts, left to right:
- previous picture
- next picture
- 100% zoom
- delete
I don’t use thumbnails, I check pictures at screen size. I use the row of keys with my three middle fingers, usually on the rightmost 3, one stroke on “next” to get the next picture, then immediate “delete”, or a shot at 100% zoom to confirm focus, and then either “next” or “delete”. To compare pictures in a series I can also use “previous+next”. I can overlay the display with kruler which is a screen pixel ruler (I can force it to remain above other windows) which makes it easy to check for appropriate verticality/horizontality.
I am going to use DigiKam. I liked Geeqie the best, but digikam was a close second.
I am still trying to figure out some sort of usable culling workflow in nomacs. I can rank photos out of 5 stars in nomacs, but can’t figure how to filter and cull based on star rating.