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Fluorescing still life

Fluorescence
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#1 Akira

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Posted 29 March 2020 - 04:16

Shot with Sigma fp and Nikkor-O 55/1.2 in total darkness. The only light source is TK566 365nm UV flashlight with 1.25" Baader U filter.

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  • Attached Image: _SDI1590.jpg


#2 Andy Perrin

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Posted 29 March 2020 - 04:25

Art!

#3 dabateman

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Posted 29 March 2020 - 05:14

looks like it has the lines ready on it to be painted for Easter.
I wonder if there is a clear coat paint that only changes color when hit with UV? Could be fun as a UV fluorescent Easter egg.

#4 colinbm

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Posted 29 March 2020 - 05:46

Love the colours....

#5 Akira

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Posted 29 March 2020 - 13:08

Thank you, guys!

I tentatively cast the UV flashlight onto this brown (not white) chicken egg and realized it fluoresced beautifully in saturated red, which inspired the posted image. The kitchen paper of towel-like texture laid under the objects also fluoresced in light blue. There was slight amount of visible light leak from the flashlight which casts shadows of the objects.

I raised the exposure by about 1/3 stop and trimmed a bit, which were the only adjustments applied to the original DNG file, so the color is essentially SOOC.

Edited by Akira, 29 March 2020 - 13:29.


#6 Stefano

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Posted 29 March 2020 - 13:54

We talked about eggs here: https://www.ultravio...3725-kiwi-uvivf

#7 dabateman

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Posted 29 March 2020 - 16:32

I also photographed a brown one here:
https://www.ultravio...628-brown-eggs/

The visible and IR induced fluorescence looks similar to your white egg visible fluorescence.

Edited by dabateman, 29 March 2020 - 16:33.


#8 Akira

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Posted 29 March 2020 - 22:51

View PostStefano, on 29 March 2020 - 13:54, said:

We talked about eggs here: https://www.ultravio...3725-kiwi-uvivf

View Postdabateman, on 29 March 2020 - 16:32, said:

I also photographed a brown one here:
https://www.ultravio...628-brown-eggs/

The visible and IR induced fluorescence looks similar to your white egg visible fluorescence.

Thank you for the instructive links.

I remember that the calcite fluoresces in orange under UV. The spectrum from the fluorescing calcium might be filtered by the shell's brown color and appear red, I guess?

#9 Andrea B.

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Posted 01 April 2020 - 17:36

I think that is a really beautiful, artistic photo.
It would make a fascinating print.

((I had forgotten all about eggs' fluorescence!))
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Often found hanging out with flowers & bees.

#10 Akira

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Posted 02 April 2020 - 10:37

View PostAndrea B., on 01 April 2020 - 17:36, said:

I think that is a really beautiful, artistic photo.
It would make a fascinating print.

((I had forgotten all about eggs' fluorescence!))

Thank you, again, Andrea! This chicken egg is brown (not white) under normal light, which may make the fluorescing red even more saturated.

An egg is truly a gift from the nature in every aspect, shape, color and taste!

#11 Akira

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Posted 11 April 2020 - 11:55

Easter eggs.

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  • Attached Image: _SDI1749.jpg


#12 Stefano

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Posted 11 April 2020 - 11:58

Wow! I didn’t know eggs are so colorful under UV light!

#13 colinbm

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Posted 11 April 2020 - 14:38

:omy:

#14 Akira

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Posted 11 April 2020 - 15:18

View PostStefano, on 11 April 2020 - 11:58, said:

Wow! I didn’t know eggs are so colorful under UV light!

That was a pleasant surprise to me, too! After the first attempt, I found that a boiled egg with its shell removed fluoresced in lime green under UV. So, I definitely wanted to add it to the original color scheme.

#15 Akira

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Posted 12 April 2020 - 08:37

For what is worth, here are the "objects" used in the last two images: a boiled egg with its shell removed (fluorescing in lime green), a brown raw egg (in red) and a sheet of kitchen paper with the towel-like texture.

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  • Attached Image: _SDI1759.jpg


#16 Akira

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Posted 16 April 2020 - 11:55

Yet another one. :)

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Edited by Akira, 16 April 2020 - 11:58.


#17 Øivind Tøien

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Posted 18 April 2020 - 05:36

Looks like a certain non-edible mushroom, great idea!
Øivind

#18 Akira

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Posted 18 April 2020 - 09:31

View PostØivind Tøien, on 18 April 2020 - 05:36, said:

Looks like a certain non-edible mushroom, great idea!

Thank you, Øivind. You seem to be right. :smile:

#19 Shane

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Posted 18 April 2020 - 16:22

Akira,
I recommended the following book many years when we talked about the fluorescence of eggs on the "old UV site", you might find it an interesting read.
The Colours of Life: An Introduction to the Chemistry of Porphyrins and Related Compounds.

#20 Akira

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Posted 18 April 2020 - 18:53

View PostShane, on 18 April 2020 - 16:22, said:

Akira,
I recommended the following book many years when we talked about the fluorescence of eggs on the "old UV site", you might find it an interesting read.
The Colours of Life: An Introduction to the Chemistry of Porphyrins and Related Compounds.

Hi, Shane, long time no see! Thank you for the reminder. I searched the book on amazon and eBay and found it is sold for over 100 USD :blink:

I'll keep an eye on a more affordable copy.