Tuesday, January 18, 2011

Nichia high power 4 dice NC4U133 / NC4U134 UV LED system

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Here I present the newest Nichia 4 dice NC4U133 (365nm) resp. NC4U134 (385nm) based UV LED system, rated 1340mW, linear control, active fan ...

A simple tutorial for reflected UV photography II

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I have been asked to write down a simple "cook book style" tutorial on UV photography, which I did quite some time ago . I also wr...
Sunday, January 16, 2011

[UV] EL-Nikkor enlarger lenses for UV photography

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As I was testing (again) EL-Nikkor lenses for UV photography, I ran a few more spectrometric tests on other EL-Nikkor enlarger lenses, which...
Friday, January 14, 2011

[UV] EL-Nikkor 3.5/63mm vs 5.6/80mm

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Well, since we're at it, lets test the highly acclaimed EL-Nikkor 3.5/63mm (version labeled "Nikon") vs. 5.6/80mm (older black...

[UV] EL-Nikkor 75mm - 80mm - 105mm for UV?

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This is a comparison of three EL-Nikkor enlarger lenses for reflected UV photography. The candidates are the older EL-Nikkor enlarger lense...
Thursday, January 13, 2011

[UV, IR] A surprising lens without UV + IR focus shift IV: EL-Nikkor 5.6/80mm

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Well, I had mentioned that my orchids started to blossom again, so why not take a chance and try out an old friend: EL-Nikkor 5.6/80mm (the ...
Wednesday, January 12, 2011

[UV, IR] A surprising lens without UV + IR focus shift III

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Well, my orchids started to blossom again, so why not take a chance and try one of those lenses out I published about a while ago here . The...