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UltravioletPhotography

Pteridium aquilinum [Bracken]


Andrea B.

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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 Kingdom

13 May 2016

Wildflower

 

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]

bracken_visSun_20160513locTayLodgeScotland_041434pn0104.jpg

 

Ultraviolet Light [f/8 for 2.5" @ ISO-1600 in Sunlight with Baader UV-Pass Filter]

bracken_uvBaadSun_20160513locTayLodgeScotland_042051pnNoShrp01.jpg

 

Infrared Light [f/8 for 1/160" @ ISO-1250 in Sunlight with B+W 092 IR-Pass Filter]

bracken_092IrSun_20160513locTayLodgeScotland_041544pnv2.jpg

 

UV+Blue+Green [f/8 for 1/1.6" @ ISO-1600 in Sunlight with UG5(1.5mm) + S8612(1.75mm) ]

bracken_ug5s8612Sun_20160513locTayLodgeScotland_041925pnFinal.jpg

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Thank you. I enjoy that UG5 for the "insect vision" look. But it seems to stand on its own, too.
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