Andrea B. Posted March 26, 2015 Share Posted March 26, 2015 Blum, A. G. (2015) Geranium maculatum L. (Geraniaceae) Spotted Crane's-bill. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...ted-cranesbill/ Synonyms:Wild GeraniumWild CranesbillComment:A native North American woodland plant, G. maculatum is also quite happy in home gardens. It is very pretty in UV with moderately UV-absorbing petals having slightly lighter shading on their borders perhaps due to some iridescence. There is a central UV-bright star formed by the UV-reflective sepals underlying the petals. The petal veins are UV-dark. The leaf veins are also nicely delineated in UV. Reference:1. New England Wild Flower Society (2015) Geranium maculatum L. https://gobotany.new...nium/maculatum/ SET 1Middletown, New Jersey, USA05 May 2013Wildflower in home garden Visible Light [f/8 for 1/160" @ ISO-100 with Nikon Coolpix A]An overview of a spreading clump of Spotted Crane's-bill blooming in springtime. Equipment [Nikon D600-broadband + Carl Zeiss 60mm f/4.0 UV-Planar]for the next photo Ultraviolet Light [f/8 for 1" @ ISO-400 in Sunlight with Baader UV-Pass Filter]The spring breezes make it difficult to capture the flowers in UV without supplementary UV-flash. They are a bit blurred. Equipment [Nikon D600-broadband + Carl Zeiss 60mm f/4.0 UV-Planar]for the next two photos Visible Light [f/11 for 1/500" @ ISO-400 in Sunlight with Baader UVIR-Block Filter] Ultraviolet Light [f/11 for 1/20" @ ISO-400 with SB-14 UV-modified Flash and Baader UV-Pass Filter] SET 2Middletown, New Jersey, USA07, 13 May 2008Wildflower in home garden Equipment [Nikon D200-broadband + Nikon 105mm f/4.5 UV-Nikkor] Visible Light [f/8 for 1/500" @ ISO-400 in Sunlight with Baader UVIR-Block Filter] Ultraviolet Light [f/8 for 1.5" @ ISO-400 in Sunlight with Baader UV-Pass Filter] Link to comment
nfoto Posted March 26, 2015 Share Posted March 26, 2015 Very interesting. A number of the European representatives have so highly UV-reflective corolla that care is required in exposure not to blow out any detail. These flowers usually appear really "UV white". Link to comment
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