Andrea B. Posted March 8, 2017 Share Posted March 8, 2017 Blum, A.G. (2017) Tree Bark of Parkinsonia x sonorae (Rose & Johnston) Hawkins ined. (Fabaceae) Sonoran Palo Verde. Tree bark photographed in ultraviolet and visible light. http://www.ultraviol...erde-tree-bark/ Desert Botanical Garden, Phoenix, Arizona, USA25 April 2013Native tree in botanical garden Comment:The soft-green bark of the lovely Palo Verde tree is not particularly remarkable in UV. Reference: Equipment [Nikon D600-broadband + Nikon 105mm f/4.5 UV-Nikkor]Unless otherwise stated. Visible Light [f/5.6 for 1/800" @ ISO-200 EV -.3 with Nikon Coolpix A in Sunlight] Visible Light [f/8 for 1/640" @ ISO-400 in Sunlight with Baader UVIR-Block Filter] Ultraviolet Light [f/8 for 1/2.5" @ ISO-400 in Sunlight with BaaderU UV-Pass Filter] Link to comment
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