Andrea B. Posted January 18, 2017 Share Posted January 18, 2017 Blum, A.G. (2017) Brassica juncea (L.) Czern. (Brassicaceae) Chinese Mustard. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...hinese-mustard/ Shore Cottage, Southwest Harbor, Maine, USA 03 August 2016 Wildflower Synonyms: Brassica juncea var. crispifolia Bailey Sinapis juncea L. Comment: Similar to other yellow Brassicas, B. juncea has UV-bright, false-yellow petals with UV-black veining. The center cluster of unopened buds is also UV-black. Reference: 1. New England Wild Flower Society (2016) Brasica juncea. Chinese Mustard. https://gobotany.new...rassica/juncea/ Visible Light [f/16 for 1/30" @ ISO-100 with Onboard Flash and Baader UVIR-Block Filter] Nikon D600-broadband + 105mm f/4.5 UV-Nikkor Ultraviolet Light [f/16 for 15" @ ISO-40 with SB-14 UV-modified Flash and BaaderU UV-Pass Filter] Nikon D600-broadband + 105mm f/4.5 UV-Nikkor A long exposure was made to permit multiple flashes for more even coverage. Visible Light [f/8 for 1/400" @ ISO-125 with Onboard Flash and Baader UVIR-Block Filter] Nikon D810 + 60mm f/2.8G Micro-Nikkor Stem detail Visible Light [f/8 for 1/400" @ ISO-220 with Onboard Flash and Baader UVIR-Block Filter] Nikon D810 + 60mm f/2.8G Micro-Nikkor Leaf at bottom of plant Visible Light [f/8 for 1/400" @ ISO-180 with Onboard Flash and Baader UVIR-Block Filter] Nikon D810 + 60mm f/2.8G Micro-Nikkor Leaf at top of plant Link to comment
Hornblende Posted January 18, 2017 Share Posted January 18, 2017 This is my favorite of the day! It looks almost dead and dry in UV light. Link to comment
Andrea B. Posted January 19, 2017 Author Share Posted January 19, 2017 The short UV wavelengths reveal a lot of surface texture. That can sometimes give an impression of dryness. Link to comment
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