BruceG Posted February 19, 2017 Share Posted February 19, 2017 EDITOR'S NOTE: Unfortunately the photos have been lost during an outage. Gong, B. 2017. Sphagneticola trilobata (L.) Pruski (Asteraceae) Singapore Daisy. Flowers photographed in visible and ultraviolet light.http://www.ultraviol...ingapore-daisy/ Nanyang Technological University, Singapore 19 Febuary 2017Wildflower in home garden SynonymsCreeping OxeyeTrailing DaisyWedliaComplaya trilobata (L.) StrotherSilphium trilobatum L.Thelechitonia trilobata (L.) H.Rob. & Cuatrec.Wedelia carnosa Rich.Wedelia paludosa DC.Wedelia trilobata (L.) Hitchc.CommentThis is a common species in Singapore, it is cultivated as ground cover but also becomes a weed that threatens natural vegetation in many places. Reference1. Wikipedia (Feb 2017) Sphagneticola trilobata. Wikimedia Foundation, San Francisco, CA. https://en.wikipedia...icola_trilobata Visible Light: Nikon J5, Natural light, ISO 160 1/20s Ultraviolet Light: Nikon J5, Pentax 25mm f2.8 C-mount quartz lens, Illuminated by a UV torch, ISO 160 8s f16, Hoya U-360 (2mm) Schott S8612 (2mm) WB readjusted Published Date: 19 Febuary 2017 Link to comment
Cadmium Posted February 20, 2017 Share Posted February 20, 2017 Bruce, Very nice! :-) Link to comment
Andrea B. Posted February 22, 2017 Share Posted February 22, 2017 Bruce, thank you so much for posting a new flower to our UV botanicals section. I hope to see some more interesting Singaporean flowers as you get time to photograph them. :D I have made some minor edits so that the post conforms to the formal format required in this section.Publishing Guidelines: Formal Botanical PresentationsWe like to see a white-balance tool applied to the file during conversion in order to display uniform false-colour results across the various gear platforms. So sometime if you would add a small white-balanced version of your photo, that would be appreciated. Link to comment
BruceG Posted February 26, 2017 Author Share Posted February 26, 2017 Bruce, thank you so much for posting a new flower to our UV botanicals section. I hope to see some more interesting Singaporean flowers as you get time to photograph them. :D I have made some minor edits so that the post conforms to the formal format required in this section.Publishing Guidelines: Formal Botanical PresentationsWe like to see a white-balance tool applied to the file during conversion in order to display uniform false-colour results across the various gear platforms. So sometime if you would add a small white-balanced version of your photo, that would be appreciated.Thank you Andrea, I was wondering where to find a reference since I do not have a book. The white balance was done in Lightroom and I pulled color temperature and tint bar to their extreme left, but still end up with some warm tone, wonder how you do your workflow. Will put in a white balanced version once I learn the correct way, There are lots of different breeds of orchid in local botanic garden, some display interesting UV signature as I have observed, however the lighting condition has not been good when I was there last time. I will wait for my flash to arrive and go there again on a fine sunny day. Link to comment
nfoto Posted February 26, 2017 Share Posted February 26, 2017 Basically we (i.e. Andrea and I) use a RAW converter capable of setting the neutral ('UV-white') point from the RAW file. Some camera models can do this directly in-camera, e.g. most Panasonic models, whilst for example the Nikons can not thus necessitating a later white balance. Photo Ninja is very adapt at doing this by a simple click operation, and so is SilkyPix. I'm sure there are others out there as well. Some programs cannot get the colour properly just by setting a white balance and additionally require using a curve tool (AfterShot is an example of this). Don't use Lightroom thus no idea about its capabilities. The ACR module of Photoshop (and LR if I have my bearings right) hasn't been willing to set the correct balance the few times I tried, although this might reflect my unfamiliarity with the software rather than an actual inadequacy. Link to comment
Andrea B. Posted February 27, 2017 Share Posted February 27, 2017 Thank you Andrea, I was wondering where to find a reference since I do not have a book. These days I think we can accept a Wikipedia reference for a flower. Their botanical references seem to be good. And in the case of this little flower, it is well-known around the world. I am not familiar with online botanical references for Singapore or Maylasia, but I'm sure there is one somewhere. At a botanical garden, I typically take a photo of the identification sign for the plant to use for a reference. :) I do not like to ask members to invest money any any extra software for converting their UV botanical photos unless they are interested in doing so for their own reasons. So I stand ready at any time to convert a raw photograph for anyone whose current converter does not give the blue/yellow/grey false colour palette. Link to comment
BruceG Posted February 28, 2017 Author Share Posted February 28, 2017 Basically we (i.e. Andrea and I) use a RAW converter capable of setting the neutral ('UV-white') point from the RAW file. Some camera models can do this directly in-camera, e.g. most Panasonic models, whilst for example the Nikons can not thus necessitating a later white balance. Photo Ninja is very adapt at doing this by a simple click operation, and so is SilkyPix. I'm sure there are others out there as well. Some programs cannot get the colour properly just by setting a white balance and additionally require using a curve tool (AfterShot is an example of this). Don't use Lightroom thus no idea about its capabilities. The ACR module of Photoshop (and LR if I have my bearings right) hasn't been willing to set the correct balance the few times I tried, although this might reflect my unfamiliarity with the software rather than an actual inadequacy.Thanks Bjørn, I will research some about the softwares you have mentioned. Meanwhile, I have to make do with Lightroom, the only way I can properly white balance a UV photo seems to be exporting it as TIFF and import it again. Link to comment
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