Willow up close
David photographed the crystallised chemical salicin, which comes from willow tree bark. Salicin forms the basis of the analgesic Aspirin – no doubt this is why some animals seek out willow bark to chew on.Technical specification
Canon EOS 5D Mark II; 50x magnification on full frame sensor; Olympus BX51 microscope; 1/4 sec at 5x UPlanFL; ISO 50; Polarisation Microscopy.
by Artist in Residence at Exeter University, College of Engineering, Maths and Physics, Fluids Laboratory, investigating artistic flow visualisation. Visit website for more.
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