Another focus-bracketing experiment.
My wife bought some "Japanese yams" at a local Asian supermarket, but we never cooked them and they sprouted. Before discarding them today, I took them outside, sat them on our glass patio table, and shot a focus-bracketed sequence with my X-T2.
Once again, 30 frames at bracketing step 3 (whatever that means). These were made with the Fuji 55-200mm zoom at 86mm and f/7.1; the metadata don't include the distance to the subject, but I think it was roughly 5 feet/1.5 meters. The subject was quite complex, with features occupying and occluding each other in several different planes. I stacked the captures with Helicon Focus, Method C: I downloaded the trial version of the Helicon product after my attempt to process the stack with Photoshop produced some out-of-focus areas.
I'm still hoping to find a Fuji customer service rep who can explain the semantics of the focus-bracketing parameters. In the meantime, I'm flying blind when I position and configure the camera. This picture turned out fairly well, but I'm afraid I have to attribute that to dumb luck.