F4 - 60 mm lens is focused as tight as possible. Aperture at widest, which is f4 at this macro setting. Depth of field is extremely narrow.
F8 - focus is a little easier to manage
F11 - In focus area has some depth
F22 - A wedding ring could be completely in focus. This bark roll is about that size.
River birches behind Founder's Hall on Cabrini College campus
F36 - Not as sharp as F22, but that could be because the exposure is longer and the camera may have moved slightly. I was not using the remote.