I think the lens is sharp enough.

Olympus 75-300 II-_1209260.jpgOlympus 75-300 II-_1209206.jpgOlympus 75-300 II-_34d0041.jpgOlympus 75-300 II-_1209250.jpgOlympus 75-300 II-_1209224.jpg

But one of these was not from the Olympus.
Can you tell which one?