nice feature of focus stacking is to take images with the lens wide open and based on the number of images used, adjust the DoF.
Nikon D850 ,Makro-Symmar SR 5.6/120 0080
1/100s f/5.6 at 120.0mm iso100 15-stack

Nikon D850 ,Makro-Symmar SR 5.6/120 0080
1/100s f/5.6 at 120.0mm iso100 30-stack
