A comparative shootout of various lenses for UV photography.

Left column : Visual Light Shot
Middle column : UV shot (using Baader-U Filter; Nichia UV LED)
Right column : Fluorescence shot, 365nm UV induced using Nichia UV LED

All shots without postprocessing, straight from the cam, just resized to 1024pix.
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2nd page is a comparison of a Pentax SMC Takumar f1.8/85mm (left) with the Ultra Achromatic Takumar 4.5/85mm (right); followed by various other tests...