@lock042
I have a bunch of shots, made with X-T1, X-T3, and X-Pro2.
part …a.zip = all ISO, 1/2 sec, f/5.6
part …b.zip = all ISO, 5 sec, Long exp noise ON
part …c.zip = lenscap on, base ISO, 1/2, 1, 5, 10, 20 sec
Perhaps part c (one set per camera) might be of use to you, even if shot at base ISO?
Have fun!
Claes in Lund, Sweden