Focus Stacking a few September Flowers

During my one visit to the botanic garden in September I found myself rather disappointed.  Everything was beginning to look a bit ragged. I was nevertheless pleased with these images.
These flowers were photo stacked with between 5 and 12 images.  Whoops, the first one is a wild geranium and it is a single shot.

The lens used is an Olympus 12-100 (24-200mm equiv) F4 zoom.  The camera is my aging Olympus E-M1.  All were done at base ISO 200 and aperture was wide open at F4. All were hand held. Shutter speeds ranged from 1/250 to 1/640. Images were merged and edited in Lightroom Classic.

Wild Geranium (one image)

Phlox (12 images)

Verbana (5 images)

Marigold (9 images)

Anenome (10 images)