A resent quote from John elsewhere on AP,
"One thing to keep in mind is that "minimum focus distance" is the distance from the sensor, not the distance from the front of the lens. I somehow never understood this, until ...."
I have just bought a lens that is about 24cms long. Am a little inclined to check this out, but for the subject matter I take photos of a step back probably works.
Kinda posting this for others to learn from any comments.