Download high resolution image here.
This image is from a
Helicon Focus processed stack of 231 images with a 2.7 µm step taken with a
Mitutoyo BD Plan APO 20X/0.42 ∞/0 mm microscope objective + Nikon 200 mm F4 AIS telephoto lens + Nikon D810 camera (magnification 20×; technique described
here).