The many clusters of bioluminescent mushrooms (Filoboletus manipularis, among possible others) that we saw earlier in the week had all but withered. The sole bunch still existing in a decent condition was found near the end of the route, emitting a very weak bioluminescence. Singlets and another dying cluster could be found on an adjacent log, their glow barely discernable from the gleaming moonlight being reflected by surrounding surfaces on the forest floor. First, behold the X100S! 25-second exposure, f/4, ISO 5000, in-camera noise reduction off, auto white balance. The junk piece of a manual screw-in cable release I picked…