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Dahlia x hybrida [Garden Dahlia]

Conical Cells Fluorescence
2 replies to this topic

#1 Andrea B.

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Posted 09 March 2014 - 19:23

Blum, A.G. (2013) Dahlia x hybrida Cavanilles (Asteraceae) Garden Dahlia. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...-garden-dahlia/

Kinfolk Lane, Southwest Harbor, Maine, USA
11 July 2012
Cultivar in home garden

Comment:
The bicolouration of this hybrid Dahlia carries over to the UV photograph.

Reference:
1. The American Dahlia Society (2014)

Equipment [Nikon D300-broadband + Carl Zeiss 60mm f/4.0 UV-Planar]

Click the photo to view at largest size. If you see a + symbol after first click, then click again.

Visible Light [f/8 for 1.6" @ ISO 200 in Sunlight with Baader UVIR-Block Filter]
Attached Image: dahliaGardenVisFlash_071112swhME_proof.jpg

Ultraviolet Light [f/8 for 1/60" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter]
Attached Image:   dahliaGardenUVBaadSB14_071112swhME_27415proof.jpg

Ultraviolet Light [f/8 for 1/60" @ ISO 400 with SB-14 UV-modified Flash and Baader UV-Pass Filter]
The pollen is UV absorbing. (This photo does not enlarge if clicked.)
Attached Image:   dahliaGardenUVBaadSB14_071112swhME_27506origProofPnCrop.jpg

UV-Induced Visible Fluorescence [f/8 for 3" @ ISO 500. Nichia 365 UV-Led + Baader-UV-Pass Filter. Lens + Baader UVIR-Block Filter. Photographed in Darkness.]
Note: This photo has not been formally colour-calibrated, so the colours of the Fluorescence may not be entirely accurate.
A little wonderland of delightful fluorescence induced by a UV torch.
Attached Image:   dahliaGarden365UVLedUVIVisFluor_071112swhME_27476proof.jpg

Ultraviolet Light [f/8 for 1/60" @ ISO 500 with SB-14 UV-modified Flash and Baader UV-Pass Filter]
The conical cells are evident on the petal surface.
Attached Image:   dahliaGardenUVBaadSB14_071112swhME_27455origProofPn.jpg
Andrea G. Blum
Often found hanging out with flowers & bees.

#2 igoriginal

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Posted 19 March 2014 - 01:54

Absolutely stunning!
Igor Butorsky

#3 Andrea B.

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Posted 20 March 2014 - 21:39

Thank you.
There can be such nice surprises and amazing details.
Andrea G. Blum
Often found hanging out with flowers & bees.