Andrea B. Posted July 30, 2013 Share Posted July 30, 2013 Blum, A.G. (2013) Heliopsis helianthoides (L.) Sweet 'Tuscan Sun' PP18763 (Asteraceae) Smooth Oxeye. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...s-smooth-oxeye/ Middletown, New Jersey, USA28 July 2013Cultivar in home garden Synonyms:False SunflowerOxeye DaisyOxeye SunflowerPerennial SunflowerComment:Attracts butterflies, heat tolerant, native to eastern North America, perennial.In UV, H. helianthoides has a very large, central, UV-black bullseye extending about 3/4 of the ray length. The ray tips are UV-bright. Reference:1. Missouri Botanical Garden (2013) Heliopsis helianthoides 'Tuscan Sun'. http://www.missourib...tuscan-sun.aspx Equipment [Nikon D600-broadband + Nikon 105mm f/4.5 UV-Nikkor]Working indoors, I used long exposures to allow repeated flashes from different angles in an attempt to control harsh shadows and produce an even illumination. To best view the 800-pixel wide photos, please expand your browser. Visible Light [f/16 for 1" @ ISO 100 with onboard Flash and Baader UVIR-Block Filter] Ultraviolet Light [f/16 for 20" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter] Visible Light [f/16 for 1" @ ISO 100 with onboard Flash and Baader UVIR-Block Filter] Ultraviolet Light [f/16 for 20" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter] Link to comment
Recommended Posts
Please sign in to comment
You will be able to leave a comment after signing in
Sign In Now