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UltravioletPhotography

First filtered UVIVF experiments (various flowers)


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These are my first experiments (except the dragonflies) after the ZBW1 filter arrived and was attached to the front of the Tank 007 TK-566 UV LED torch. All the first ones were captured with 105mm f/4 AIS micro @ nominal f/8 mostly with PN-11 on unmodified D7100, 10-20 sec exposures, L-39 on the lens. (most of these also posted in the NG forum).

 

Underside of a fern showing spore clusters (sori), UVIVF

#1

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Snatched from a flower bed at the university. Apologies that I do not have clue as to what it is, although it reminds me of a flower often seen on wet beds in the Norwegian mountains, visible light:

#2

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UVIVF:

#3

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This one looks related to the Viola tricolor I am used to from Scandinavia, but bigger and cultivated,

Visual

#4

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UVIVF:

#5

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UVIVF side view reveals some "aliens" hiding inside the plant, one is about to emerge

#6

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In UV-induced infrared fluorescence (UVIIF) the cyan bright spots are not visible any longer:

#7

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On the second day I had not planned anything and only had the AW1 with me plus the flashlight and protection. The 11-27.5mm zoom is superb near the close range at 27.5mm and f/6.3. The AW1 was just braced on the desk as I do no have a tripod plate for it. These were actually better than the ones I did with the f/3.5 and f/2.8 versions of the 55mm Micro Nikkors the next day on D7100, partly due to the resulting better depth of field. No L-39 filter used on the lens for these ones. The flower was snatched from one of the flower beds at the university, but appeared to grow somewhat wild pattern and was mostly white in visible light:

#8

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UVIVF

#9

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Same plant side view, visual light

#10

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UVIF, There was a certain alien look to it (or perhaps belonging in a Harry Potter movie look) from the side. (Anyone knows what it is?)

#10

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UVIF detail of flower from cropped frame

#11

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UVIVF, backlighted size comparison to a Dandelion:

#12

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Finally the dandelion which does not seem to have as variable colors around here than some other examples published on this site, but certainly shows bright yellow fluorescence:

#13

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Really nice work, Øivind. Isn't UVIVF fascinating? I think the spores on the fern are quite amazing. Who would have expected those to be fluorescent?

 

#2, 3: Borage flower, I think. With fluorescent veining - wow! Was it growing in an herb garden?

 

#8, 9, 10, 11, 12: That is a graceful Columbine (Aquilegia). It does not appear to be the wild Canadian variety which is typically red. So it is a cultivar. The cottony tendrils may be a mold? But probably is some "fluff" from some other plant because I think I see a little seed on some of it.

 

Love the Dandelion with its little candles of light in the center.

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Thanks Cadmium and Andrea for the enthusiastic comments!. And thanks for the identification clues. The Borage flowers appeared to have been carefully planted in a flower bed maintained outside the building I work in in (Arctic Health) not too long ago. I felt a bit guilty snatching one of them, but they would likely have finished flowering in not too long time. :)

 

The Columbine was growing pretty wildly, but likely was initially planted too (could have spread). It was not as red as the image in the link for the wild Canadian varity, more violet + off white I would say. I captured a quick bad cellphone shot (protective glass on lens broken) when I passed today. It gives a good impression of the habitat though. It is a bit on the blue side (should be violet) compared to the visual impression, and the specimen I got might have been even whiter/bleached more towards the front of the Margaret Murie Building. The visual shot above could be on the warm side due to the fluorescent tubes.

 

 

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I don't have any specific wildflower references for Alaska, although I'm sure they exist. I'll look at the USDA site and run a list for Alaska to see what Columbines turn up. There are many other wild varieties besides the one mentioned above.

 

I'll bet that whoever maintains the flower beds at the U won't mind the occasional clip of a Borage flower or some other type. It's in the interest of science, after all!! The only place I never take specimens is on national or state park lands where one must have a permit to gather. (And that is quite often easily granted, depending on the plant and how prolific it is.) Also I won't ever take a single or gather from a really sparse patch of one type anywhere. Just common sense.

 

We have a few tags which can be used to identify certain kind of posts. You'll find them when you use the Full Editor (More Reply Options). I've added the Fluor tag to this post for you this time.

 

Enjoy!!

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Thanks, I thought that I entered the Fluorescence tag from the pulldown menu when I made the initial post, may be it did not stick or confusing with the Dragonfly post. I assume "Flour" tag is the same?

 

I rechecked the Columbines I used in my initial post again today; there are two distinct color variants of the Columbines there. The blue-violet one in my last post and a more purple one that I used shown below at the corner of the building. Both with distinct white parts.

 

I have already singled out a number of new targets on campus that have to be checked out in UV light when I get more time. :D

 

 

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https://plants.usda.gov/checklist.html

 

On (the linked above) USDA state search page, I entered the state 'Alaska' and the genus 'Aquilegia'.

This produced a list of 3 wild columbines (listed below) which grow in Alaska (and also some name variations for these 3 which I have omitted). After checking these out, I think we can safely say they are not the columbine which you have photographed. There is such a large number of Aquilegia cultivars, it is difficult to know what yours might be. But that's OK - the photographs are beautiful and a valuable contribution to UVIVF. :)

 

Aquilegia brevistyla Hook. smallflower columbine

Aquilegia flavescens S. Watson yellow columbine

Aquilegia formosa Fisch. ex DC. western columbine

 

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Yes, the "fluor tag" = "fluorescence tag". I get lazy sometimes. :rolleyes:

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Thanks for looking this up and for the links. The wild species certainly look different. Some searching indicates that UAF has a pretty extensive program for the flower beds producing and planting 130,000 seeds every autumn. I am looking forward to more exploration. :)
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That is so interesting to hear about. I'm thinking that many parts of Alaska could have a very short growing season (frost to frost), so a coordinated effort to plant flower beds at the U is quite a nice thing. :)
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