Lilium sp. [Yellow Asiatic Hybrid Lily]

[photoni]

Castellani A. (2024)  Lilium sp. L. (Liliaceae) Asiatic Hybrid Lily. Flowers photographed in ultraviolet and visible light.  LINK

 

Italia

30 Jan 2024

Commercial Cultivar

 

Comment:

I bought this potted flower at the supermarket instead of a classic tulip bouquet.
I was hoping to see a double yellow-blue signature like in Birna's photos LINK.

 

Reference:

1. Wikipedia (acc 30 Jan 2024) Lilium

 

 

I did some tests with the SoligorKA 35 f:3.5 - @f/11 and Sony A7 full spectrum.
These were taken on a hazy day, with the sun barely visible... I imagine there is little UVA
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Visible with QB39 1.5mm t filter.

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Ultraviolet with TSN575+ZWB2.

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Visible made in the studio with artificial light with QB39 1.5mm t filter.

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Visible made with flash light (clear Pyrex tube).

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UV made with TSN575+ZWB2.

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UV made with Nemo 365 nm UV-led light.

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[colinbm]

You have done the flower justice Toni.

[Andrea B.]

Toni - thank you for the contribution. I have added the header information for this section so that the topic will be properly indexed. 

 

This Asiatic lily does have an interesting UV signature with the dark blotches on the petals and the white central area. It is almost the reverse of a UV-dark bulls-eye, isn't it? Bulb flowers are often difficult to photograph in either Visible or UV because of the shiny, glossy petals.

[photoni]

this is with "Nemo" 365 nm light + QB39 + Nikon L39 antiUV

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[photoni]

21 hours ago, Andrea B. said:

Toni - thank you for the contribution. I have added the header information for this section so that the topic will be properly indexed. 

 

This Asiatic lily does have an interesting UV signature with the dark blotches on the petals and the white central area. It is almost the reverse of a UV-dark bulls-eye, isn't it? Bulb flowers are often difficult to photograph in either Visible or UV because of the shiny, glossy petals.

Thanks Andrea
yes, it's a strange flower.
As I wrote at the beginning, I hoped it would have a yellow-blue color

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Do you know if there are any flowers that have a green reflection?
Do I need a UV-Nikkor to see it?
Thanks

[Yves W]

Interesting and beautiful,

Thanks Toni

[Andrea B.]

Do you know if there are any flowers that have a green reflection?
 

Birna and I encountered a flower in Scotland which seemed to have a dark green appearance in UV. It was a Primula (Primrose). I don't think our Primroses are posted. But we are not the only ones who saw dark green Primroses. Here are two from other members.

Jim Lloyd, made with a 35/3.5:  LINK 

Adrian Davies, made with an EL-Nikkor 80:  LINK

 

 

False colour is difficult to assess. It depends on so many factors (lighting, lens, sensor, conversion software, filter). Others on the forum have shown that false green in a reflected UV photograph is in the shorter half of the 300-400 nm range. Around 330/340 nm IIRC.

[photoni]

On 1/31/2024 at 8:36 PM, Andrea B. said:

Do you know if there are any flowers that have a green reflection?

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I'm rereading these pages too

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LINK1    LINK2   LINK3   LINK4  LINK5