These frames were shot in my garden illuminated by north light from a mixed blue and cloudy sky.
The lens was a Tamron 90mm SP Macro, the sharpest lens I own.
Exposures were at two settings, the set going to underexposed were 200 ISO with a 45 degree shutter, the over exposed set were ISO 800 with a 180 degree shutter.
I will redo these tests in a more controlled environment with constant settings but this was a quick first look.
I will also upload some manually graded images alongside the autoconverted one.
The conversions to PNG were done in Xnview as an automated process so don't believe these images - download the DNG and see the difference!
As usual click on the image to download a full DNG file