Well, some long time ago I had mentioned that I was able to "liberate" the two last survived multispectral quartz fluorite lenses UFAR-12 f2.5/41mm from the russian mission to Mars. Made by LOMO and designed by GOI, they represent (to me) a top result of the designers under Prof. Volossov who headed the optical design department of GOI in St Petersburg. Transmission of that lens is flat approx. 65% for 330...1000nm. Center resolution is approx. 80lpm
And today I took it out again and took some shots on my balcony, as there were some succulent Cobweb Hens & Chicks were starting to flower....
[click on image to see a larger one]
Human Vision (400-700nm):
Ultraviolet Vision (310-390nm):
Quite nice resolution this lens shows and it has a pretty good UV transmission, too which I have measured a while ago.
Stay tuned, more will follow on that fascinating subject...
More info on this very interesting field may be found on my site http://www.pbase.com/kds315/uv_photos
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