Very bad out of focus background

Software darktable
1

dt-photographers-20130323-1650
dt-photographers-20130323-16503464×4041 12.1 MB

photographers-20130323-1650.cr2 (30.7 MB)
photographers-20130323-1650.cr2.xmp (9.7 KB)

image: CC BY-NC 4.0

If you look at the tree branches oof above the head of the photographer. There are a lot of “sploshes”.

What did I do wrong?

Thanks

2

If you use 4.4.2 stable propably without openCL, it could be this.

This is what it looks like with a more recent master version, where this problem has been fixed.

photographers-20130323-1650_02
photographers-20130323-1650_021385×1616 647 KB

1 Like
3

Nothing to do with focus, because there is also some on the lens hood and on the man’s pants. Looks like the accidental Sabattier effect that you get when you color curves are not monotonously increasing.

4

My version…

photographers-20130323-1650
photographers-20130323-16503540×4130 5.68 MB

photographers-20130323-1650_01.cr2.xmp (19.0 KB)

5

Thanks

Based on your processing, here’s my final version

photographers-20130323-1650
photographers-20130323-16503464×4041 14.8 MB

1 Like
6

Yes, you are correct. I use opensuse Leap 15.5 with dt 4.4.2 WITHOUT opencl.

Opencl loads but not under DT because it cannot reserve enough memory.