wow!  yes!  that shows exactly what i was experiencing.  there are times i want a response like the 1 and .5  at the end of your 3rd scale, and i just pretty much couldn't get there.  for those last 3 columns, i don't find what you're showing a small difference at all.  they're exactly the range i'd like to work in if i'm doing a low ambient lighting scene.  that's much better.  woohoo!  i'm so impressed!

edited to add: no, not all the time.  just about 1/2 is what i'd like.  i mean, basically what you're talking about is anything that's nighttime and not in the city.  and personally, i can see a significant difference starting in the fifth column.  which is pretty common for anything not brightly lit.  if you want, i can show some of the works i've favorited that use about  that level of lighting.