Andrea B. Posted August 9, 2017 Share Posted August 9, 2017 Blum, A.G. (2017) Lythrum salicaria L. (Lythraceae) Purple Loosestrife. Flowers photographed in ultraviolet, infrared, visible and UV+Blue+Green light. http://www.ultravioletphotography.com/content/index.php/topic/2363-lythrum-salicaria-purple-loosestrife/ EMR Recycling Center, Southwest Harbor, Maine, USA28 July 2017Wildflower Synonyms:Lythrum salicaria var. gracilior Turcz.Lythrum salicaria var. tomentosum (P. Mill.) DC.Comment:It is really a pity that such a lovely flower is an invasive pest in the New England area. The purple flower spike is striking in both Visible and in Ultraviolet light. In UV the petals feature a pretty false blue center stripe against a pale, UV-reflective, false yellow. The center of the flower is UV-dark. Reference:1. New England Wild Flower Society (Aug 2017) Lythrum salicaria. Purple Loosestrife. https://gobotany.new...hrum/salicaria/ Equipment [Nikon D600-broadband + Carl Zeiss 60mm f/4.0 UV-Planar] Visible Light [f/11 for 1/13" @ ISO-200 with Onboard Flash and Baader UVIR-Block Filter] Ultraviolet Light [f/11 for 10" @ ISO-400 with SB-14 UV-modified Flash and BaaderU UV-Pass Filter]The long shooting interval was chosen to permit two UV flashes for better illumination of the subject. Infrared Light [f/11 for 1/10" @ ISO-400 with Sima IR-Led and B+W 093 IR-Pass Filter] UV+Blue+Green [f/11 for 2" @ ISO-400 in Sunlight with UG5(1.5 mm) + S8612(2.0 mm)] Link to comment
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