Monday, September 14, 2009

Experiments with Relay Lenses - UV

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I promised to explain what that relay system has to do with UV photography - now here some preliminary results showing that same system bein...
Thursday, September 10, 2009

Experiments with Relay Lens Systems

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About relay lens systems today and what they allow to achieve. Not much technical details today, just a few images for your viewing pleasure...
Monday, August 31, 2009

Test Pentax SMC f1.8/85mm vs. Ultra Achromatic Takumar f4.5/85mm

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Here a quick test, Pentax SMC Takumar 1.8/85mm vs Ultra Achromatic Takumar 4.5/85mm to see how that might perform. That SMC lens is said to ...
Thursday, August 27, 2009

Nikon D80 / D200 spectral response UV IR

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This time a technically oriented entry, about the spectral sensitivity of a (modified) Nikon D80 camera. This camera uses actually the same ...
Tuesday, August 25, 2009

Rudbeckia Meadow - Human, Butterfly, Bee vision

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A Rudbeckia meadow in full bloom, human, butterfly (tetrachromatic) and bee (trichromatic) vision shot using my one-shot XBV2 filter. [click...
Friday, August 14, 2009

BBC new series "Invible Worlds" incl. Bee, Bird, Butterfly etc. vision

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Well, I have been granted permission to mention it: BBC London has asked me to contribute my work of the invisible to their new three part s...
Thursday, August 13, 2009

Bidens ferulifola - simulated insect point of view

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This is, again, about Bidens ferulifola shown in simulated tetrachromatic vision. But this time the point of view of an insect is being show...