There's something strangely compelling about this macro shot of an old (c. early 1960s) Minolta Rokkor-TC 135mm f/4 macro lens.
This was shot using a Canon EF-S60mm f/2.8 Macro USM lens and a ring flash. The center of the iris was edited to remove the reflections from the flash. You'd almost expect to see James Bond appear there.
This old lens is non-focusing, meant to be used with an old macro bellows from that same era. Check out the 12-blade diaphragm!