ecobin Loc: Paoli, PA

Steve Perry just released (I got the email on Saturday 10/10) his new course on this subject. Nikon DSLRs D780 and D850 and the mirrorless Z5, Z6 and Z7 cameras have this feature. I purchased the course and have watched about half of the 20 videos in the course and am very happy that I took the plunge. As always, Steve explains everything to perfection and provides many examples. I strongly recommend this course if you have one of these cameras.
https://bcgwebstore.com/product/focus-shift-shooting-digital-workshop-for-nikon/