Sunday, November 7, 2010

Bidens meets UV-Planar 4/60mm

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Some Bidens ferulifolia shots today using the famous UV-Planar 4/60mm lens and my proprietary XBV2 butterfly vision mapping filter. [click o...
Thursday, October 28, 2010

Calibration of a lens for correct UV focus (focus shift)

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I have been asked a lot how to overcome that focus-shift issue when taking reflected UV shots with a non-color corrected "normal" ...

Gentiana 3D stereo, human vs butterfly vision II

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Here another presentation of a Gentiana flower, in stereo for crossed eye viewing. [click on image to see a larger one] Differential human t...
Tuesday, October 26, 2010

[UV] Gazania Experiments

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Some Gazania experiments today, shot using a Zeiss UV-Planar 4/60mm.  visible light shot: visible + ultraviolet light shot: well, just eye c...
Friday, October 1, 2010

[UV] A surprising lens without UV focus shift

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Well, I am studying lenses since quite some time and was researching the history of some, when I noticed the same reflection pattern (which ...
Tuesday, September 28, 2010

Cover Photo October Issue Journal of Zoology

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The new October Issue of the Journal of Zoology is out now . The cover photo is mine, as I am also a co-author of the paper: "Effects o...
Friday, September 17, 2010

Nichia UV LED torches for fluorescence photography

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Well, since we're at it, let's have a look at UV induced visible fluorescence and how these UV LED torches perform there as compared...