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UltravioletPhotography

UV-contamination in UVIVFL photography


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Here is an example of contamination by UV light while imaging UV-induced visible fluorescence of a unnamed variety of sunflower. There is also small contribution from visible light, but UV-contamination is clearly visible.

 

holavachovSunflower.jpg

 

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Hi Alex

Can you explain what / where the UV contamination is in this photo please ?

Perhaps a side by side examples ?

Col

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I suspect the spill is the blue on the stem and leaves... I appreciate it's a spill, but I have to say it's a very attractive spill that adds to the image :)
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Andrea B.

It may be "UV contaminated", but it is a lovely starlight photograph.

 

Question: what blocking filter were you using ? It might leak some UV ??

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Question: what blocking filter were you using ? It might leak some UV ??

 

I am not sure I understand the question, Andrea. What blocking filter we are talking about?

 

Here are the settings of the shot:

ISO - 3200

exposure - 30 seconds

illumination - 5W UV torch with Nichia chip filtered through UG11 filter

lens - Sony E-mount 16mm F/2.8 lens set to F/8, no filter over the lens

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Alex, I thought you did that intentionally, am I confused?

More so than usually I mean.........

- JD

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Alex, I agree with Andrea that the result is remarkable. Sometimes the process is the intention.
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