Fuji 60mm f/2.4
Here's an example from this past weekend at the Joggins Fossil site. It shows some small stones with mining tool marks, which have been smoothed by wave action at the beach. X-Pro 1 with XF 60/2.4 Macro, handheld at 1/1000 sec., f/11, ISO 1000. First image is full photo and second image is a centre crop.