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Silene dioica [Red Campion]

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#1 Andrea B.

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Posted 19 May 2016 - 20:32

Blum, A.G. (2016) Silene dioica (L.) Clairv. (Caryophyllaceae) Red Campion. Flowers photographed in ultraviolet and visible light. http://www.ultraviol...ca-red-campion/

Loch Tay Lodges, Killin, Scotland, United Kingdom
13 May 2016
Wildflower

Other Common Names:
  • Red Catchfly
  • Cìrean Coilich (Gaelic: Cock's Comb)
Comment: This deep candy-pink, spring-blooming European native biennial begins blooming in May in most areas of Scotland. Many insects enjoy its nectar, especially flies. The center reproductive area and throat are UV-dark. The petals are moderately UV-absorbing. The swollen, hairy calyx, characteristic of many of the Silenes, is also UV-dark. High ISO settings were used with moderate success while shooting in very strong spring winds.

Reference:
1. Scott, Michael (2011) Scottish Wild Flowers. Red Campion, page 77. Birlinn Limited, Edinburgh, Scotland, UK

Equipment [Sony a7R-broadband + Asahi 85/4.5 Ultra-Achromatic-Takumar]

Visible Light [f/8 for 1/500" @ ISO-1250 in Sunlight with Baader UVIR-Block Filter]
Attached Image: DSC01782pn01.jpg

Visible Light [f/8 for 1/320" @ ISO-800 in Sunlight with Baader UVIR-Block Filter]
Two small files enjoy the nectar.
Attached Image: DSC01758pn.jpg

Ultraviolet Light [f/8 for 1" @ ISO-1250 in Sunlight with Baader UV-Pass Filter]
Attached Image: DSC01780pn01.jpg

Ultraviolet Light [f/8 for 2" @ ISO-800 in Sunlight with Baader UV-Pass Filter]
Attached Image: DSC01766pn.jpg

Ultraviolet Light [f/4.5 for 1/8" @ ISO-1250 in Sunlight with Baader UV-Pass Filter]
Two frames were stacked in this composite in an attempt to improve details.
Abaxial view.
Attached Image: DSC01815pnComp.jpg

UV+Blue+Green [f/4 for 1/5" @ ISO-1250 in Sunlight with UG5(1.5mm) + S8612(1.75mm) ]
Attached Image: DSC01789pn01.jpg
Andrea G. Blum
Often found hanging out with flowers & bees.

#2 Andrea B.

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Posted 19 May 2016 - 20:56

BTW, I have high hopes that this somewhat sub-standard example will eventually be joined by a better Silene dioica from one of our UVP members or from me. Not every field trip produces high quality work, but we soldier on anyway.
Andrea G. Blum
Often found hanging out with flowers & bees.

#3 Andy Perrin

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Posted 19 May 2016 - 21:17

I was surprised you got those two flies in such sharp focus with a 2 second exposure! The pictures are pretty, anyway! How are you liking the new camera? By the way, I have the Neat Image Photoshop plug-in for denoising, and I think it does a nicer job than PN.

Edited by Andy Perrin, 19 May 2016 - 21:19.


#4 Andrea B.

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Posted 19 May 2016 - 21:53

I'm still working out the kinks as you can see. The camera is a little more difficult to work with than my D600. My close-up photos improved after I turned off focus peaking which otherwise works fine for landscape or medium distance shooting. There seems to be a lot more noise than I expected at the higher ISO settings. But I need more experience with the camera right now to better learn the appropriate settings.

The little flies must have been tipsy on nectar. I could not shoo them off the flower!
Andrea G. Blum
Often found hanging out with flowers & bees.