Andrea B. Posted July 9, 2016 Share Posted July 9, 2016 Blum, A.G. (2016) Dianthus barbatus L. (Caryophyllaceae) Sweet William Pink. Flowers photographed in ultraviolet, infrared and visible light. http://www.ultravioletphotography.com/content/index.php/topic/1894-dianthus-barbatus-sweet-william-pink/ Trenton, Maine, USA07 July 2010Wildflower Comment: Sweet William Pink is a garden import from Europe (and/or Asia) which escaped to naturalize widely across the country. The fancier forms are still popularly used in the garden. This naturalized specimen has UV-dark petals with a central UV-bright ring and UV-bright petal edges. There appear to also be some shiny iridescent streaks probably caused by conical cells. Reference:1. Haines, A. (2011) Flora Novae Angliae. Dianthus barbatus L., page 511. Yale University Press, New Haven, CT. Equipment [Nikon D700-broadband + Rodenstock 60mm f/4.5 UV-Rodagon] Visible Light [f/11 for 1/15" @ ISO-400 in Sunlight with Baader UVIR-Block Filter] Infrared Light [f/11 for 1/250" @ ISO-400 with Onboard Flash and B+W092 IR-Pass Filter] Ultraviolet Light [f/11 for 2.5" @ ISO-635 in Sunlight with BaaderU UV-Pass Filter] Link to comment
Andy Perrin Posted July 12, 2016 Share Posted July 12, 2016 Andrea, have you done a hydrangea? This reminds me quite a lot of the UV response I saw from those, in particular the iridescent streaks on the dark petals. Link to comment
Andrea B. Posted July 17, 2016 Author Share Posted July 17, 2016 I see that shiny streaking a lot on poppies. See last UV photo here: http://www.ultravioletphotography.com/content/index.php/topic/672-eschscholzia-californica-subsp-mexicana-mexican-gold-poppy/The particular hydrangea I've photographed did not show it so much. But there are many different types of hydrangea. "-) Link to comment
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