nfoto Posted December 19, 2012 Share Posted December 19, 2012 Rørslett, B. 2012. Chelidonium majus L. (Papaveraceae). Greater Celandine. Flowers photographed in visible and ultraviolet light. http://www.ultraviol...eater-celadine/ Chelidonium majus L.NO: SvaleurtSE: SkelörtDK: SvaleurtFI: KeltamoDE: SchöllkrautEN: Greater Celandine Specimen collected outside Oslo, Norway, 23 May, 2012 Visible light: Panasonic GH2, UV-Nikkor 105 mm f/4.5 lens, Baader UV/IR Cut filter Ultraviolet light (broadband 300-400 nm): Panasonic GH2, UV-Nikkor 105 mm f/4.5 lens, Baader U 2" (Venus) filter, Broncolor Minicom studio flash Ultraviolet light (narrowband 335-345 nm): Panasonic GH2, UV-Nikkor 105 mm f/4.5 lens, BP340 filter, Broncolor Minicom studio flash. Black/white rendition. There is no appreciable difference between the narrow- and broad-band UV captures so basically this species provides the same UV signature over the spectral range used by pollinators. Whether this is a general trend for flowers is not yet clear. Making narrow-band captures and in particular deep into UV-A/UV-B entails a significant loss of UV response by the camera so, technically speaking, broad-band records are less demanding and easier to accomplish. [Last updated 26 Dec 2012] Link to comment
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