Andrea B. Posted May 24, 2016 Share Posted May 24, 2016 Blum, A.G. (2016) Pteridium aquilinum (L.) Kuhn (Dennstaedtiaceae) Bracken. Plant photographed in ultraviolet and visible light. http://www.ultraviol...ilinum-bracken/ Loch Tay Lodges, Killin, Scotland, United Kingdom13 May 2016Wildflower Synonyms:Örnbräken (Swedish)Comment: Bracken is one of those unusual plants which produces chemicals to suppress seedlings of some other plants enabling large thick, tall stands to flourish on the moors and at woodland edges. But this fern redeems itself by providing shade for other woodland wildflowers, food for certain butterfly larvae and shelter for birds. These photos feature the coiled frond, or fiddlehead, of a young bracken. These fiddleheads are carcingenic and should not be eaten. Reference:1. Den virtuella floran (2016) Pteridium aquilinum (L.) Kuhn. Naturhistoriska riksmuseet, Stockholm, Sweden.http://linnaeus.nrm....ri/pteraqu.html Equipment [sony a7R-broadband + Asahi 85/4.5 Ultra-Achromatic-Takumar] Visible Light [f/8 for 1/125" @ ISO-1250 in Sunlight with Baader UVIR-Block Filter] Ultraviolet Light [f/8 for 2.5" @ ISO-1600 in Sunlight with Baader UV-Pass Filter] Infrared Light [f/8 for 1/160" @ ISO-1250 in Sunlight with B+W 092 IR-Pass Filter] UV+Blue+Green [f/8 for 1/1.6" @ ISO-1600 in Sunlight with UG5(1.5mm) + S8612(1.75mm) ] Link to comment
Cadmium Posted May 24, 2016 Share Posted May 24, 2016 Andrea, I very much like this last one, delicate greens and grays. Link to comment
Andrea B. Posted May 26, 2016 Author Share Posted May 26, 2016 Thank you. I enjoy that UG5 for the "insect vision" look. But it seems to stand on its own, too. Link to comment
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