The fine-structure of an avian feather

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Supar Takumar 50mm f/1.4 with makeshift extension tube, on ASA 400 Fujicolour film





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Supar Takumar 50mm f/1.4 reverse mounted on Panasonic FZ-30








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Vivitar 28mm f/2.8 reverse mounted on Panasonic FZ-30
Note the preposterous diffraction effects in regions that are out of focus





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A closer view of the previous photograph. Observe the porous core of the main shaft.




A full sized crop of the preceding images, this image gives a resolution of 776 nanometres per pixel.
Viewed on a monitor, it gives an appriximate magnification of 400x.