Try running this test image I made.
Change the settings to suit your machine until you get a nice looking gradient.
Here are the settings that work roughly ok for me:
testgrayscale.lbrn2 (12.2 KB)
Try running this test image I made.
Change the settings to suit your machine until you get a nice looking gradient.
Here are the settings that work roughly ok for me:
testgrayscale.lbrn2 (12.2 KB)