Not an Olympus lens but Vivitar lens shot shown for comparison using same camera.
At 1/25 sec shutter even the slightest wind causes focused flower stamens and anthers to be OOF.
OM 50 mm f/2 Macro, perhaps at f/8, possibly at f/11 - I'm not accustomed to having to remember
A maple tree blossom fallen into a woodpecker excavation in a rotting log.
A sign spring has arrived - the Common Snapping Turtles are digging out from under the mud where they slept through the winter, and are out and about seeking to fulfil their four desires: sex, food, sex and sex This one was about 18-20 inches long from snout to tail and feisty - very unhappy about my impeding his/her pursuits. Definitely big and strong and quick enough to remove any unwary fingers within striking distance...
(I was trying this situation with various lenses, but this lens was the only one that did this weird thing of showing the pine needles in the bokeh balls even though other pine needles in that plane were blurred. I liked the effect)
a7rii with OM 90/2 @f2.8 (edited this to post the f2.8 version, previously the f4)