Anyone have a good laser test pattern to test grey scale power levels?

Anyone have a good laser test pattern to test grey scale power levels?

Have tried this?:

No but I think that is for cutting , I need to tune levels of grey-scale. Guess I should have put that in my original post. Thanks for the find though I will use it also to test cuts next.

Maybe this one?

If you tune it to laserweb would be great if you share.

You can use Lightburn software. it got 30 days trial. but what related to this topic - it got some different tests, included one, described above, but with additional customized options. Its best and easy software for lasers.

You can also look for grayscale charts for the Norton Tile process. There are a number of those floating around too.