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My Salad

Multispectral White Balance Fluorescence
10 replies to this topic

#1 dabateman

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Posted 08 March 2020 - 04:55

I took this a while ago, but never posted.

Image is the top of an orange pepper and yellow pepper in the back.
Top of an English cucumber, then tops of a yellow carrot, orange carrot and purple carrot
Radish top, turnip and radish bottom.

Visible:
Attached Image: Visible.jpg

UVIVF (Using SD15 UV/IR block filter):
Attached Image: UVIVF.jpg

UVIIRF (Using 720 LP filter):
Attached Image: UVIIRF.jpg

Reduced UVIIRF as the cucumber is bright as a Kiwi fruit.
Attached Image: UVIIRF_low.jpg

UVIVIRF (Using just a 2A filter to catch both Visible induced and IR induced)
Attached Image: UVIVIRF.jpg

UV/Visible (Using just a 2mm S8612 filter with 365nm lights):
Attached Image: UVVisible.jpg

UV (Baader Venus U with 365nm lights)
Attached Image: UV_Baader_365nm.jpg

UV-A (Baader Venus U with 2 UVB lights)
Attached Image: UV_Baader_UVBlight.jpg

UV-B (313bp25 stacked with U330WB80 improved filter):
Attached Image: UVB_UVBlights.jpg

#2 colinbm

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Posted 08 March 2020 - 05:03

Thanks very much Dave, great collection & examples.....some look more delicious them others depending on the light...

#3 Cadmium

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Posted 08 March 2020 - 05:11

Very interesting, that S8612 with 365nm light! Never seen that done!

#4 nfoto

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Posted 08 March 2020 - 11:09

A prime example that invisible light never cease to amaze and surprise by what unknown wonders are exposed.

#5 colinbm

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Posted 08 March 2020 - 11:18

View PostCadmium, on 08 March 2020 - 05:11, said:

Very interesting, that S8612 with 365nm light! Never seen that done!
Now you know something of what I was up too......

#6 Stefano

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Posted 08 March 2020 - 12:01

That bright NIR fluorescence proves that you never know what's happening at all wavelengths unless you try to see all of them. Who would have imagined that the cucumber was so bright in the NIR? You couldn't guess it.

#7 Mark

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Posted 08 March 2020 - 13:36

@dabateman: While turnip is practically #1 on my least liked foods ever - I very much like how the UV image shows such nice contrast in the internal structures. It could be interesting to see a UV rendition of this subject bisected longitudinally.

#8 dabateman

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Posted 08 March 2020 - 14:18

Mark,
Why have you removed your older photos?
I couldn't find your cucumber images.

#9 dabateman

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Posted 08 March 2020 - 14:19

View PostCadmium, on 08 March 2020 - 05:11, said:

Very interesting, that S8612 with 365nm light! Never seen that done!

Its one of my favorite for images. I think I posted it before.
Maybe in my egg series.

#10 Andy Perrin

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Posted 09 March 2020 - 00:07

A wonderful set! I like the turnip and carrot innards best.

#11 Cadmium

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Posted 09 March 2020 - 07:03

View Postdabateman, on 08 March 2020 - 14:19, said:

Its one of my favorite for images. I think I posted it before.
Maybe in my egg series.

Don't know, but that's a nice one. S8612 + narrow UV-365, quite nice, never seen anyone do that.