[CTRL v2.4.2: hyperrealism lock; extreme detail preservation; no stylization; directional keys+spill] a single human hair under extreme magnification, the cuticle scales visible as overlapping shingles along the shaft, melanin granules showing as brown dots within the cortex, the root bulb still attached with dermal papilla visible, shot with 100x oil immersion objective at f/2.8 equivalent, transmitted light from below revealing internal structure, keratin-and-light grade, intimate biology mood