See my Canon mirrorless wishlist.
Similar to Beaver Pond Beaver Trail Through Reeds, this series evaluates performance of the Canon RF 50mm f/1.2L USM for its superb correction of aberrations. As part of that, a 4-frame focus stack is included, consisting of three frames at f/11 and one frame at f/8 (the most distant frame).
Includes images up to full camera resolution from f/1.2 through f/11 plus a 4-frame focus stack along with a discussion of why the Canon RF 50mm f/1.2L USM makes a superb lens for focus stacking.
Detail in the 4-frame focus stacked image below is eye-popping at full resolution. Viewed on an iMac 5K it’s stunning.